Linux command reference

Filed under Linux and Unix by on April 19, 2009 at 10:15 am {no comments}

Linux Command Reference is one of the top article written in Techno Explore blog which contains reference to Top Linux Commands. Major Linux Commands such as Network commands, Copy Commands, SSH, Tcpdump and major Linux commands are covered in this Tutorial.

Read the full article:  Unix Command Reference

Unix Shortcuts

Filed under Linux and Unix by on April 19, 2009 at 10:04 am {no comments}

Here are the list of Unix shortcuts. The list consists of shortcuts commonly used in Unix

Ctrl+C – halts the current command
Ctrl+Z – stops the current command, resume with
fg in the foreground or bg in the background
Ctrl+D – log out of current session, similar to exit
Ctrl+W – erases one word in the current line
Ctrl+U – erases the whole line
Ctrl+R – type to bring up a recent command
!! – repeats the last command
exit – log out of current session

Here are the list of other useful information in unix

For Basic commands tutorial. Please refer to Basic commands in unix

For Process Management tutorial. Please refer to Process Management commands in unix

For Setting File permissions please visit the tutorial File Permissions in Unix

To learn how to connect to another host machine using unix. Learn ssh in Unix

To learn basic search in unix visit tutorial searching in Unix

To learn system information commands visit tutorial System Information commands in Unix

To Learn compression in unix, visit the post Compression in unix

System Information Commands in Unix

Filed under Linux and Unix by on April 19, 2009 at 9:51 am {no comments}

Here are the list of System Information commands in Unix. These are generally used in command prompt

Date command in unix
date – show the current date and time

cal command in unix
cal – show this month’s calendar

uptime command in unix
uptime – show current uptime

to display currently who is logged in
w – display who is online
whoami – who you are logged in as
finger user – display information about user
uname -a – show kernel information

cat command in unix
cat /proc/cpuinfo – cpu information
cat /proc/meminfo – memory information
man command – show the manual for command
df – show disk usage
du – show directory space usage
free – show memory and swap usage
whereis app – show possible locations of app
which app – show which app will be run by default

For Unix Basic commands tutorial. Please refer to Basic commands in Unix

For Unix Process Management tutorial. Please refer to Process Management commands in Unix

For Setting File permissions please visit the tutorial File Permissions in unix

 

File permissions in Unix

Filed under Linux and Unix by on April 19, 2009 at 9:35 am {one comment}

File permission in unix is done with the help of chmod command.

Give below is the way of how to use File Permission for Unix

chmod command in unix
chmod octal file – change the permissions of file
to octal, which can be found separately for user,
group, and world by adding:
● 4 – read (r)
● 2 – write (w)
● 1 – execute (x)
Examples:
chmod 777 – read, write, execute for all
chmod 755 – rwx for owner, rx for group and world
For more options, see man chmod.

For Basic commands tutorial. Please refer to Basic commands in Unix

For Process Management tutorial. Please refer to Process Management commands in Unix

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