Useful Linux Commands A System Administrator Should Know
Linux is command based operating system. Most of things are done in cli based environment
bash . In this tutorial we will look popular and useful commands used by Linux system administrators and user. You can access detailed tutorials simply clicking links below.
tr command is used to translate or delete characters in the given text.
ps command is used to list and get detailed information about processes
dd is used to read and write bulk data in a raw way.
ping is used for network diagnostics.
scp is used for secure file transfer
vi / vim
vi/ vim is used for text editing
cd is used to navigate paths
cp is used to copy file and folders
tar is used to archive given file and folders.
alias is used to create shortcuts for commands
ssh is used to connect remote systems securely
ls is used to list files and folders
tee is used to redirect output
grep is used to filter given text
rm command is used to remove files and folders
sed is used to filter text
ln is used create hard and soft symbolic links
wc is used to count words, lines and characters in given text
chmod is used to to change file and folder permissions
shutdown is used to shutdown and restart system
rsync is used to sync files between systems
mv is used to rename and move file and folders
nmap is actually a tool used to scan network and ports but provides useful information about systems on the network.
cat is used to print files in Linux distributions.
passwd command use used to manage password of users
useradd or adduser
These commands are used to add user to the Linux system