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391 Cards in this Set
- Front
- Back
a2p
|
Create a Perl script from an AWK script.
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ac
|
Print statistics about user connection time.
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access
|
The system function which checks a user's permissions to access a file. |
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addgroup
|
Add a group to the system.
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adduser
|
Add a user to the system.
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agrep
|
Version of the grep utility which also matches approximate patterns.
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alias
|
Create an alternate name for a command.
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apropos
|
Search the manual pages for a keyword or regular expression.
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apt-cache
|
Search for information about software packages available through APT.
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apt-get
|
Command line tool for managing APT software packages.
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aptitude
|
Text-based front end for the APT package management system.
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ar
|
Create, modify, and extract files from archives.
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arch
|
Display the architecture of the system.
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arp
|
Manipulate the system ARP cache.
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as
|
An assembler.
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aspell
|
An interactive spell checker.
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at
|
Schedule a command to be run at a certain time.
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awk
|
Interpreter for the AWK text processing programming language.
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basename
|
Strip directory information and suffixes from filenames.
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bash
|
The Bourne Again shell command interpreter.
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bc
|
A calculator.
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bdiff
|
Identify the differences between two very big files.
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bfs
|
An editor which can load very large files.
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bg
|
Resume a suspended program without bringing it to the foreground.
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biff
|
Receive detailed mail notifications at the command line.
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break
|
Break out of a while, for, foreach, or until loop.
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bs
|
A Linux version of the popular game "Battleship."
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bye
|
On some systems, an alias for the exit command.
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|
cal
|
Display a conveniently-formatted calendar from the command line.
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calendar
|
Display appointments and reminders.
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cancel
|
Cancel a print job under the System V operating system.
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cat
|
Output the contents of a file.
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cc
|
Compiler of the C programming language.
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cd
|
Change the working directory.
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cfdisk
|
A more user-friendly version of the fdisk disk partitioning utility.
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chdir
|
The system function for changing the working directory.
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checkeq
|
Language processor which assists in describing equations.
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checknr
|
Check nroff and troff files for errors.
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chfn
|
Change a user's finger information.
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chgrp
|
Change the group ownership of files and directories.
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chkey
|
Change the secure RPC key pair on SunOS.
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chmod
|
Change the permissions of files and directories.
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chown
|
Change the ownership of files and directories.
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chroot
|
Run a command or shell from another directory, and treat that directory as root.
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chsh
|
Change login shell.
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cksum
|
Calculate and display a CRC for files.
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clear
|
Clears the screen.
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cmp
|
Compare two files byte by byte.
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col
|
Filter reverse linefeeds.
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comm
|
Compare two sorted files line by line.
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compress
|
Compress a file or files.
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continue
|
Break out of a while, for, foreach, or until loop.
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cp
|
Copy files and directories.
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cpio
|
Copy files to or from archives.
|
|
crontab
|
View and edit a list of jobs for the system to run at regular intervals.
|
|
crypt
|
System function used to encrypt passwords.
|
|
csh
|
The C shell command interpreter.
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csplit
|
Split files based on a defined context.
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ctags
|
Create tag files for source code.
|
|
cu
|
Calls up another system, acting as a dial-in terminal.
|
|
curl
|
Transfer data to or from a server.
|
|
cut
|
Remove or "cut out" sections of each line of a file or files.
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date
|
Output the current date and time.
|
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dc
|
An arbitrary-precision arithmetic package.
|
|
dd
|
Copy and convert the encoding of files.
|
|
delgroup
|
Remove a group from the system.
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deluser
|
Remove a user from the system.
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depmod
|
Generate a list of kernel module dependences and associated map files.
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deroff
|
Remove nroff/troff, tbl, and eqn constructs from files.
|
|
df
|
Report the amount of available disk space on file systems.
|
|
dhclient
|
Communicate with a DHCP server to obtain a dynamic IP address.
|
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diff
|
Identify the differences between two files.
|
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dig
|
DNS lookup utility.
|
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dircmp
|
Compare the contents of two directories, listing unique files.
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|
dirname
|
Strip the filename from a pathname, leaving only the directory component.
|
|
dmesg
|
Print or control the kernel ring buffer.
|
|
dos2unix
|
Convert text files between DOS and Unix formats.
|
|
dpkg
|
Query, install, remove, and maintain Debian software packages and their dependencies.
|
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dpost
|
Translate files created by troff into PostScript under Solaris.
|
|
du
|
Report the amount of disk space used by a file or files.
|
|
echo
|
Output text.
|
|
ed
|
A simple text editor.
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edit
|
A text editor.
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egrep
|
Filter text which matches an extended regular expression.
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eject
|
Eject removable media.
|
|
elm
|
A mail client.
|
|
emacs
|
A highly extensible text editor.
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|
enable
|
Enable and disable LP printers.
|
|
env
|
Report the value of environment variables.
|
|
eqn
|
Language processor for describing equations.
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|
ex
|
Line-editor mode of the vi text editor.
|
|
exit
|
Exit the command shell.
|
|
expand
|
Expand tab characters to a series of spaces.
|
|
expr
|
Evaluate arguments as an expression.
|
|
fc
|
List, edit, or re-execute commands from the command history.
|
|
fdisk
|
A disk partioning utility.
|
|
fg
|
Resumes a suspended job and brings it to the foreground.
|
|
fgrep
|
Filter text which matches a fixed-character string.
|
|
file
|
Determine a file's type.
|
|
find
|
Find files within a directory hierarchy.
|
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findsmb
|
List information about machines networked with the Samba protocol.
|
|
finger
|
List information about a user.
|
|
fmt
|
A formatter for simplifying and optimizing text files.
|
|
fold
|
Wrap lines of text to a specified line width.
|
|
for
|
Execute a set of commands in a repeating loop.
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foreach
|
Execute a set of commands once for each of a given set of input items.
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free
|
Display the amount of free and used memory.
|
|
fsck
|
Check and repair a Linux file system.
|
|
ftp
|
Conduct an interactive FTP session over a secure network connection.
|
|
fuser
|
Identify processes using files or sockets.
|
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gawk
|
GNU's version of the AWK programming language.
|
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getfacl
|
Display file access control lists.
|
|
gethostname
|
System call to get the hostname of the current processor.
|
|
gpasswd
|
Administer /etc/group and /etc/gshadow.
|
|
gprof
|
Display call graph profile data.
|
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grep
|
Filter text which matches a regular expression.
|
|
groupadd
|
Add a group to the system.
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|
groupdel
|
Remove a group from the system.
|
|
groupmod
|
Modify a group definition.
|
|
gunzip
|
Expand compressed files.
|
|
gview
|
An alias for vim.
|
|
gvim
|
An alias for vim.
|
|
gzip
|
Create, modify, list the contents of, and extract files from GNU zip archives.
|
|
halt
|
Stop the computer.
|
|
hash
|
Access internal hash tables under Solaris.
|
|
hashstat
|
Evaluate the effectiveness of internal hash tables under Solaris.
|
|
head
|
Display the first lines of a file.
|
|
help
|
Display help for built-in shell commands.
|
|
history
|
Display the command history.
|
|
host
|
Convert a host name to an IP address and vice versa.
|
|
hostid
|
Print the numeric identifier for the current host.
|
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hostname
|
Set or print the hostname of system.
|
|
id
|
Display real and effective user and group IDs.
|
|
ifconfig
|
View or modify the configuration of network interfaces.
|
|
ifdown
|
Disable a network interface.
|
|
ifquery
|
Parse information about a network interface.
|
|
ifup
|
Enable a network interface.
|
|
info
|
Read Info documents.
|
|
init
|
The parent of all processes on the system.
|
|
insmod
|
Insert a module into the Linux kernel.
|
|
iostat
|
Report CPU and I/O statistics for devices and partitions.
|
|
ip
|
Display and manipulate information about routing, devices, policy routing and tunnels.
|
|
isalist
|
Display the native instruction sets available on a Solaris system.
|
|
iwconfig
|
Configure a wireless network interface.
|
|
jobs
|
List the status of all running jobs.
|
|
join
|
Join the lines of two files which share a common field of data.
|
|
keylogin
|
Decrypt a user's secret key on SunOS.
|
|
kill
|
Send a signal to a process, affecting its behavior or killing it.
|
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killall
|
Kill processes by name.
|
|
ksh
|
The Korn shell command interpreter.
|
|
last
|
Display a listing of the most recently logged-in users.
|
|
ld
|
Link editor for object files.
|
|
ldd
|
List dynamic dependencies of executable files or shared objects.
|
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less
|
Scrolling text viewer.
|
|
lex
|
Generate programs for performing lexical tasks.
|
|
link
|
Create a hard link to a regular file.
|
|
ln
|
Create a link, or a symbolic link, to a file or directory.
|
|
lo
|
Exit the command shell.
|
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locate
|
Search a local database to find files by name.
|
|
login
|
Begin a session on a system.
|
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logname
|
Return a user's login name.
|
|
logout
|
Exit the command shell.
|
|
losetup
|
Set up and control loop devices.
|
|
lp
|
Print a file on the System V operating system.
|
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lpadmin
|
Configure LP print services.
|
|
lpc
|
Control line printers.
|
|
lpq
|
List the status of available printers.
|
|
lpr
|
Submit print requests.
|
|
lprm
|
Remove requests from the print queue.
|
|
lpstat
|
List the status of the LP print services.
|
|
ls
|
List the contents of a directory or directories.
|
|
lsmod
|
Show the status of Linux kernel modules.
|
|
lsof
|
List open files.
|
|
lzcat
|
View compressed .lzma files.
|
|
lzma
|
Compress files to .lzma file.
|
|
mach
|
Display the processor of the current system.
|
|
mail
|
Read, compose, and manage mail.
|
|
mailcompat
|
Provide SunOS 4.x compatibility for the Solaris mailbox format.
|
|
mailx
|
Process mail messages.
|
|
make
|
Automatically build executable programs and libraries from source code.
|
|
man
|
Display the manual page of a given command.
|
|
merge
|
Performs a merge of the contents of three files.
|
|
mesg
|
Control if (non-root) users can send messages to your terminal.
|
|
mii-tool
|
View and manipulate the status of a media-independent interface.
|
|
mkdir
|
Create a directory.
|
|
mkfs
|
Build a Linux file system, usually a hard disk partition.
|
|
mkswap
|
Set up a Linux swap area.
|
|
modinfo
|
Show information about a Linux kernel module.
|
|
modprobe
|
Add and remove modules from the Linux kernel.
|
|
more
|
Display text one screen at a time.
|
|
mount
|
Mount a file system so that its data may be accessed.
|
|
mt
|
Control magnetic tapes.
|
|
mv
|
Move files and directories from one location to another, and optionally rename them.
|
|
myisamchk
|
Check, repair, optimize, or fetch information about a MySQL database.
|
|
mysql
|
An open-source relational database management system.
|
|
mysqldump
|
A tool for backing up or transferring MySQL databases.
|
|
nc
|
TCP/IP swiss army knife.
|
|
neqn
|
Language processor for describing equations.
|
|
netstat
|
Print information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.
|
|
newalias
|
Install new elm aliases.
|
|
newform
|
Change the format of a text file under Solaris.
|
|
newgrp
|
Log into a new group.
|
|
nice
|
Invoke a command with an altered scheduling priority.
|
|
niscat
|
Display NIS+ tables and objects.
|
|
nischmod
|
Change access rights on a NIS+ object.
|
|
nischown
|
Change the owner of a NIS+ object on a system running Solaris.
|
|
nischttl
|
Change the time to live value of a NIS+ object.
|
|
nisdefaults
|
Display NIS+ default values.
|
|
nisgrep
|
Utilities for searching NIS+ tables.
|
|
nismatch
|
Utilities for searching NIS+ tables.
|
|
nispasswd
|
Change NIS+ password information.
|
|
nistbladm
|
Administer NIS+ tables.
|
|
nl
|
Number the lines in a file.
|
|
nmap
|
Network exploration tool and security port scanner.
|
|
nohup
|
Instruct a command to continue running even if the session is disconnected or the user logs out.
|
|
nroff
|
Format documents for terminal display or line-printer.
|
|
nslookup
|
Query a name server for information about a remote host.
|
|
od
|
Dump files in octal and other formats.
|
|
on
|
Execute a command on a remote system, but with the local environment.
|
|
onintr
|
Built-in shell function which responds to hardware interrupts.
|
|
optisa
|
Determine which instruction set is optimal to use on a Solaris system.
|
|
pack
|
Compress files using a Huffman algorithm.
|
|
pagesize
|
Display the size of a page of memory in bytes.
|
|
parted
|
A disk partition manipulation program.
|
|
partprobe
|
Inform the operating system about changes to the partition table.
|
|
passwd
|
Change a user's password.
|
|
paste
|
Merge corresponding lines of files.
|
|
pax
|
Read and write file archives, and copy directory hierarchies.
|
|
pcat
|
Print the uncompressed contents of a compressed file.
|
|
perl
|
Interpreter for the Perl programming language.
|
|
pg
|
Browse page by page through text files.
|
|
pgrep
|
Look up processes based on the name or other attributes.
|
|
pico
|
A simple text editor.
|
|
pine
|
A client for using mail and newsgroups.
|
|
ping
|
Send ICMP ECHO_REQUEST packets to network hosts.
|
|
pkill
|
Send a signal to any process whose attributes match a regular expression.
|
|
poweroff
|
Stop the computer.
|
|
pr
|
Format a text file for printing.
|
|
printenv
|
Print all or part of the environment.
|
|
printf
|
Write formatted output.
|
|
priocntl
|
Display or set scheduling parameters of a processes under Solaris.
|
|
ps
|
Report the status of a process or processes.
|
|
pstree
|
Display processes in a tree format.
|
|
pvs
|
Display the internal version information of dynamic objects within an ELF file.
|
|
pwd
|
Print the name of the working directory.
|
|
quit
|
Exit the command shell.
|
|
rcp
|
Copy files to or from a remote system.
|
|
readlink
|
Print the value of a symbolic link or canonical file name.
|
|
reboot
|
Stop the computer.
|
|
red
|
Run ed in "restricted" (less powerful, more secure) mode.
|
|
rehash
|
Recompute internal hash tables under Solaris.
|
|
rename
|
Rename multiple files according to a regular expression.
|
|
renice
|
Alter the priority of running processes.
|
|
repeat
|
Execute a set of commands in a repeating loop.
|
|
replace
|
A string-replacement utility.
|
|
rgview
|
An alias for vim.
|
|
rgvim
|
An alias for vim.
|
|
rlogin
|
Begin a session on a remote system.
|
|
rm
|
Delete files.
|
|
rmdir
|
Remove a directory.
|
|
rmmod
|
Remove a module from the Linux kernel.
|
|
rn
|
A newsgroup reader.
|
|
route
|
Display and manipulate the IP routing table.
|
|
rpcinfo
|
Report information about Remote Procedure Calls.
|
|
rsh
|
Execute a command on a remote shell.
|
|
rsync
|
A fast and versatile file copying tool capable of synchronizing files across remote systems.
|
|
rview
|
An alias for vim.
|
|
rvim
|
An alias for vim.
|
|
s2p
|
Convert a sed script into a Perl script.
|
|
sag
|
Under Solaris, Graphically displays system activity data generated by sar.
|
|
sar
|
Display CPU activity under Solaris.
|
|
scp
|
Copy files securely over a network connection.
|
|
screen
|
Screen manager with VT100/ANSI terminal emulation.
|
|
script
|
Record everything printed on your screen.
|
|
sdiff
|
Compare two files, side-by-side.
|
|
sed
|
A utility for filtering and transforming text.
|
|
sendmail
|
Send mail.
|
|
service
|
Run a System V init script.
|
|
set
|
Set the value of an environment variable.
|
|
setenv
|
Set the value of an environment variable.
|
|
setfacl
|
Modify the access control list of a file or files.
|
|
sethostname
|
System calls or set the hostname of the current processor.
|
|
sfdisk
|
A low-level disk partitioning program.
|
|
sftp
|
Conduct an interactive FTP session over a secure network connection.
|
|
sh
|
The Bourne shell command interpreter.
|
|
shred
|
Overwrite a file's contents, irrevocably destroying them.
|
|
shutdown
|
Schedule a time for the system to be powered down.
|
|
sleep
|
Wait a given number of seconds.
|
|
slogin
|
Login to a remote system securely.
|
|
smbclient
|
An ftp-like client for accessing SMB/CIFS resources on servers.
|
|
sort
|
Sort the lines in a text file.
|
|
spell
|
A spell checker.
|
|
split
|
Split a file into pieces.
|
|
startx
|
Start an X Window System session.
|
|
stat
|
Display the status of a file or filesystem.
|
|
stop
|
Stop a running job.
|
|
strftime
|
Format strings that represent the system date and time.
|
|
strip
|
Discard symbols from object files.
|
|
stty
|
Set options for your terminal display.
|
|
su
|
Become the superuser or another user.
|
|
sudo
|
Execute a command as the superuser.
|
|
swapoff
|
Disable a Linux swap area.
|
|
swapon
|
Enable a Linux swap area.
|
|
sysinfo
|
Get and set system information strings.
|
|
sysklogd
|
Linux system logging utilities.
|
|
tabs
|
Set tab stops on a terminal.
|
|
tac
|
Output the contents of files in reverse order.
|
|
tail
|
Print the last lines of a text file.
|
|
talk
|
Talk with other logged in users.
|
|
tar
|
Create, modify, list the contents of, and extract files from tar archives.
|
|
tbl
|
Preprocessor which formats tables for nroff or troff.
|
|
tcopy
|
Copy a magnetic tape.
|
|
tcpdump
|
Capture raw network traffic.
|
|
tcsh
|
A command-line shell similar to csh, with some additional features.
|
|
tee
|
Route a file's contents to multiple outputs.
|
|
telinit
|
Process control initialization.
|
|
telnet
|
Connect to a remote system using the telnet protocol.
|
|
test
|
Check file types and compare values.
|
|
time
|
Report how long it takes for a command to execute.
|
|
timex
|
Report process data and system activity for a specified command.
|
|
todos
|
Convert text files between DOS and Unix formats.
|
|
top
|
Display a sortable, continually-updated list of processes.
|
|
touch
|
Update the timestamp of a file or directory.
|
|
tput
|
Initialize a terminal or query the terminfo database.
|
|
tr
|
Translate one set of characters to another.
|
|
traceroute
|
Trace the route that packets take to a remote host.
|
|
trap
|
A function which "traps" signals and interrupts, and reacts to them.
|
|
tree
|
List the contents of a file hierarchy visually in a tree format.
|
|
troff
|
Typeset or format documents for terminal display or line-printer.
|
|
tty
|
Print the file name of the terminal connected to standard input.
|
|
ul
|
Translate underscores to underlining.
|
|
umask
|
Get or set the file mode creation mask.
|
|
umount
|
Unmount a file system, making its data inaccessible.
|
|
unalias
|
Remove an alias.
|
|
uname
|
Print information about the current system.
|
|
uncompress
|
Extract files from compressed archives.
|
|
unhash
|
Remove internal hash table under Solaris.
|
|
uniq
|
Identify, and optionally filter out, repeated lines in a file.
|
|
unlink
|
Remove a file.
|
|
unlzma
|
Decompress .lzma files.
|
|
unpack
|
Expand a compressed file.
|
|
until
|
Execute a set of commands until a certain condition is true.
|
|
unxz
|
Decompress .xz files.
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unzip
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List, test and extract compressed files in a zip archive.
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uptime
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Display information about how long the system has been running.
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useradd
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Add a user to the system.
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userdel
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Remove a user from the system.
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usermod
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Modify a user's account.
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vacation
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Reply to mail automatically.
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vgrind
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"Grind" nice program listings.
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vi
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Text editor based on the visual mode of ex.
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view
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Run vim in read-only mode.
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vim
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An advanced version of vi.
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vipw
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Safely edit the password file.
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visudo
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Safely edit the sudoers file.
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vmstat
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Report statistics about virtual memory usage.
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w
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Show who is logged on and what they are doing.
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wait
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Await process completion.
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wall
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Send a message to all logged-in users.
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wc
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Display a count of lines, words, and characters in a file.
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wget
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Download files via HTTP or FTP.
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whatis
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Display short manual page descriptions.
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whereis
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Locate the binary, source, and manual page files for a command.
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which
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Locate the binary executable of a command.
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while
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Execute a set of actions while a certain condition is true.
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who
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Report which users are logged in to the system.
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whoami
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Print your effective userid.
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whois
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An internet user name directory service.
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write
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Send a message to another user.
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X
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Executable of the X Window System.
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Xorg
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The executable of the X Window System server.
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xargs
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Build and execute complex commands, and execute them on multiple files.
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xfd
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Display all the characters in an X font.
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xhost
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Server access control program for X.
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xinit
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The initializer of the X Window System.
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xlsfonts
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Display X font lists.
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xrdb
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An X server resource database utility.
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xset
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A user preference utility for X.
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xterm
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A terminal emulator for X.
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xz
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Compress files to .xz files.
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xzcat
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View compressed .xz files.
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yacc
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"Yet another compiler-compiler."
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yes
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Repeatedly output a given string, or the letter "y".
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yppasswd
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Change a network password in an NIS database.
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yum
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An interactive rpm-based package manager.
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zcat
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Print the uncompressed contents of compressed files.
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zip
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A compression and archiving utility.
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zipcloak
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Encrypt files within an existing zip archive.
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zipinfo
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Display technical information about a zip file.
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zipnote
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View, add, or modify a zip file's comments.
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zipsplit
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Split a single zip archive into a set of smaller zip files.
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