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BASH - Commands

File Transfer

	Command
Secure copy file to host	scp file.txt server2:/tmp
Synchronize source to destination	rsync -a /home/peter /backup/

	Command
Search for a pattern in files	grep pattern files
Search recursively for pattern in directory	grep -r pattern directory
Find all instances of file	locate filename
Find filenames that start with xxx	find /home/peter -name 'xxx*'
Find filesnames larger than 10000k	find /home/peter -size +10000k

	Command
Display who is logged in	w
Show who is logged into the system	who
Display who you are logged in as	whoami
Display information on a user	finger user
Show the active user id with login and group	id
Show last logins on the system	last
Add a group	groupadd groupname
Add a user	adduser peter
Add a user	useradd -c “Peter Roux” - g admin -m peter # Add user peter
Delete a user	userdel peter
Modify user information	usermod peter