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 Command References:Utilities That Display and Manipulate Files

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welan
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PostSubject: Command References:Utilities That Display and Manipulate Files   Mon Mar 15, 2010 6:02 pm

aspell


Checks a file for spelling errors

bzip2


Compresses or decompresses files

cat


Joins and displays files

cmp


Compares two files

comm


Compares sorted files

cp


Copies files

cpio


Creates an archive or restores files from an archive

cut


Selects characters or fields from input lines

dd


Converts and copies a file

diff


Displays the differences between two files

find


Finds files based on criteria

fmt


Formats text very simply

gawk


Searches for and processes patterns in a file

grep


Searches for a pattern in files

gzip


Compresses or decompresses files

head


Displays the beginning of a file

less


Displays text files, one screen at a time

ln


Makes a link to a file

lpr


Sends files to printers

ls


Displays information about one or more files

ma


Displays documentation for commands

mkdir


Creates a directory

mv


Renames or moves a file

od


Dumps the contents of a file

paste


Joins corresponding lines from files

pr


Paginates files for printing

rm


Removes a file (deletes a link)

rmdir


Removes a directory

sed


Edits a file (not interactively)

sort


Sorts and/or merges files

split


Divides a file into sections

strings


Displays strings of printable characters

tail


Displays the last part (tail) of a file

tar


Stores or retrieves files to/from an archive file

touch


Changes a file's access and/or modification time

uniq


Displays unique lines

wc





Displays the number of lines, words, and bytes
Network Utilities

ftp


Transfers files over a network

rcp


Copies one or more files to or from a remote system

rlogin


Logs in on a remote system

rsh


Executes commands on a remote system

scp


Securely copies one or more files to or from a remote system

ssh


Securely executes commands on a remote system

telnet


Connects to a remote system over a network

Utilities That Display and Alter Status

cd


Changes to another working directory

chgrp


Changes the group associated with a file

chmod


Changes the access mode (permissions) of a file

chown


Changes the owner of a file and/or the group the file is associated with

date


Displays or sets the system time and date

df


Displays disk space usage

du


Displays information on disk usage by file

file


Displays the classification of a file

finger


Displays information about users

kill


Terminates a process by PID

killall


Terminates a process by name

nice


Changes the priority of a command

nohup


Runs a command that keeps running after you log out

ps


Displays process status

sleep


Creates a process that sleeps for a specified interval

stty


Displays or sets terminal parameters

top


Dynamically displays process status

umask


Establishes the file-creation permissions mask

w


Displays information about system users

which


Shows where in PATH a command is located

who


Displays information about logged-in users

Utilities That Are Programming Tools

configure


Configures source code automatically

gcc


Compiles C and C++ programs

make


Keeps a set of programs current
Miscellaneous Utilities

at


Executes commands at a specified time

cal


Displays a calendar

crontab


Maintains crontab files

echo


Displays a message

expr


Evaluates an expression

fsck


Checks and repairs a filesystem

mkfs


Creates a filesystem on a device

Mtools


Uses DOS-style commands on files and directories

tee


Copies standard input to standard output and one or more files

test


Evaluates an expression

TR


Replaces specified characters

tty


Displays the terminal pathname

tune2fs


Changes parameters on an ext2 or ext3 filesystem

xargs


Converts standard input into command lines

I triple checked this for typo's and corrected the ones I found, but please let me know if you find any I missed.
and thank you for flying Penguin Air.

_________________
An expert is a man who tells you a simple thing in a confused way in such a fashion as to make you think the confusion is your own fault. 
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