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Linux

Linux Command

QuestionAnswer
How do you get the current date date
How do you get a calendar? cal
How do you find out disk space information df
How do you find out memory information free
How do you show the current working directory? pwd
How do you change directory cd
How do you list directory contents ls
cd - Changes to the previous working directory
cd ~user_name Changes the working directory to the home directory of the user_name...for example cd ~ferris will change the directory to the home directory of the use "ferris"
ls -a Show all files, including those hidden (start with a . )
ls -l Gives the long format of a directory information
ls -A Almost all...same as -a except it doesn't like the current directory or the parent directory
ls -d Using this option will give information about the directory...used in conjunction with -l for even more data
ls -F Appends an indicator character to the end of a listed name...for example, a / if the name is a directory
ls -h Makes things in human readable format...for example, in conjunction with -l, will display bytes as 1.0M or 360B
ls -r Reverses the normal order of the list
ls -S sort results by file size
ls -t sort by modification time
How do you tell a command's type? type
How do you display an executable's location? which
How do you get a command's documentation? help
How do you search all man pages for a particular word apropos
Where do you redirect output that you just want to throw away? /dev/null
How do you get realtime updates on changes to a file tail -f
How do you see realtime stats of processes running top
Created by: jfer0501