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Cover image for basic Linux commands you should know
Ahmed Elagmey
Ahmed Elagmey

Posted on

basic Linux commands you should know

#linux #script #ubuntu #bash

Here's a simple illustration about basic Linux commands every information technology related jobs should know

command line syntax
command {option} {argument}

getting help

-- help 
man command
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navigate between directories

pwd  
print working directory
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cd change directory

cd /Desktop
cd .. one level up
cd ~ telda = home directory
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List directory content

ls 
ls -h 
ls -a 
ls -lha /documents
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create files & directories

touch filename 

mkdir dir-name
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Reading file content

cat filename
head filename
tail filename
more filename
less filename
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copying

cp filename /destination
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remove files & directory

rm filename
rmdir dir-name
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user permission

read (r) write (w) execute (x)

chmod +w or chmod 2
chmod +r or chmod 4
chmod +x or chmod 1
chmod 7 for giving r+w+x permisions
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process management

ps 
ps -ef 
ps -aux 
top
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adding users

useradd username 
passwd username for creating a password to a specific user
usermod for modified 

##
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