Shell

UNIX Commands

 
Comandi UNIX Comandos UNIX UNIX Befehle Commandes UNIX Comandos de Unix

Table of the main UNIX commands

Unix Commands Description Options
ls lists the content of a directory
-a Displays all files, including hidden files
-I Displays a detailed listing
-R Displays the files recursively (i.e. in the sub-directories)
-d Displays only the directories and not their content
-S Sort by size
-t Sort by the last modification date
-t Sort by version
-X Sort by alphabetical order of the extension
-r Sort in reverse order
cd change directory
cd Return to the user's directory
cd - Return to the previous directory
cd .. Return to the parent directory
mkdir Create a new directory  
rmdir Deletes a directory
-f Force the deletion
-R Recursive delete (i.e. in the directory and its sub-directories)
cp Copy a file copy, xcopy
mv move file move
rm delete the file
-f Force the deletion
-R Recursive delete (i.e. in the directory and its sub-directories)
pwd "print working directory" displays the full current directory path of the work in progress.  
passwd changes the user password  
cat Concatenates two files and displays the result on the standard output. cat
more Displays the file content with pauses  
file displays the presumed type of the specified file  
man

apropos

 help for the requested command  
lpr prints the requested file  
chmod changes the attribute of a file

chmod XXX file

XXX= User|Group|Other where X is an integer between 1 and 7

Read = 4, Write = 2, Execution = 1

X= Read + Write + Execution

  
chfn Changes the personal information viewed with finger  
chsh Changes the shell: chsh user emplacement_du_shell  
clear Clears the lines displayed on the terminal  
finger, who list of users online  
traceroute traces the path between the local machine and the target machine  
ping diagnostic tool making it possible to see if a machine responds over the network  
ftp [machine] [port]

get

put

quit

 file transfer between the local machine and target machine

recovers a file

sends a file

quits the FTP session

 ftp
telnet [machine] performs a telnet telnet
talk makes it possible to talk to a connected user

talk user

  
mesg Authorizes or rejects the talk command

mesg n : Prevents reception of talk messages

mesg y: Allows reception of talk messages

  
exit Disconnects  


Last update on Thursday October 16, 2008 02:43:15 PM.This document entitled « UNIX Commands » from Kioskea (en.kioskea.net) is made available under the Creative Commons license. You can copy, modify copies of this page, under the conditions stipulated by the licence, as this note appears clearly.
Best answers for « UNIX Commands » in :
Introduction to UNIX systems Show The UNIX system The Unix system is a multi-user, multi tasking operating system which means that it allows a single or multiprocessor computer to simultaneously execute several programs by one or several users. It has one or several command...
UNIX - Files Show Introduction to UNIX files In UNIX systems any element is represented in the form of a file. All files are architectured around a single tree structure where the base, called the root, is written "/". File types UNIX systems define different...
[Linux]Restarting the network interface using command lines Show [Linux]Restarting the network interface using command lines When setting up a network, specially if you need to verify that a DHCP server assigns IP addresses correctly, restarting the network interface using command lines rather than the...
How to use the tar command ShowHow to use the tar command Archiving files with “tar” Archiving folder (or directory) with “tar” Unpacking file with tar Unpack the file with tar Unpacking specific files with "tar" Archiving files with “tar” The "tar"...
MacOS X: Delete obstinate Files ShowMacOS X: Delete obstinate Files It may happens sometimes when trying to empty the recycle bin and that the files or folders you want to delete it still refuses to disappear. To resolve this problem, use a UNIX command in Terminal....
Unable to delete file: Argument list too long ShowUnable to delete file: Argument list too long Solutions Xargs Command find loop for (bash) Program Perl When trying to delete a file , you receive the following error message : bash: /bin/rm: Argument list too long This is...
Download Free commander ShowFree Commander is an alternative program to replace the file manager or the Windows explorer. The program is easy to use and will help you for your daily tasks. You will find all the necessary functions for the data management. The main...
Using FTP commands ShowThe FTP protocol FTP (File Transfer Protocol) is a protocol — meaning a standard language that lets two machines communicate — used so that computers of different types (or with different operating systems) can transfer files over a...
FTP commands ShowThe FTP protocol FTP (File Transfer Protocol) is a protocol — meaning a standard language that lets two machines communicate — used so that computers of different types (or with different operating systems) can transfer files over a...
Linux - Tree structure of files ShowFile hierarchy under Linux To ensury compatibility and portability, Linux systems comply with the sole FHS (File Hierarchy Standard) standard. The basic hierarchy is as follows: /the root, containing the main directories /bincontains...
They need your help