Commands cheat sheet¶

List items and change directories¶

command	description
`ls`	list directory contents
`ls -l`	list all files and directories
`cd dir`	Change the current directory to dir
`cd ..`	go up one directory
`cd`	go to home directory
`pwd`	print name of current working directory
`df -h ~`	show available storage space in home directory

command	description
`mkdir dir`	make a directory
`rm file`	delete a file
`rmdir dir`	delete an empty directory
`rm -r dir`	delete a directory with its contents
`cp file1 file2`	copy file1 to file2
`cp -r dir1 dir2`	copy dir1 to dir2
`mv item1 item2`	move (rename) files or directories

command	description
`chmod MODE item`	change permissions on item
`chmod -R MODE dir`	change permissions on directory with contents
`chown user0 item`	change owner of item
`chown user0: item`	change owner of item; change group ownership to `authusers`
`chown -R user0 dir`	change owner of directory with contents
`chgrp group0 item`	change group ownership of item
`chgrp -R group0 dir`	change group ownership of directory with contents

command	description
`cat <file>`	display the contents of a file on the screen
`less <file>`	view file with page navigation (use q to exit and arrows to navigate)
`head <file>`	output the first 10 lines of a file
`tail <file>`	output the last 10 lines of a file

Για την επεξεργασία ενός αρχείου, χρησιμοποιούμε έναν από τους παρακάτω text editors:

command	description
`grep <pattern> <file>`	search for a pattern in a file
`grep -i <pattern> <file>`	search pattern ignoring upper/lower case
`grep -v <pattern> <file>`	display non-matching lines
`find <file>`	find a file in current directory
`find . -name "<file>"`	find instances of a file in current directory hierarchy

command	description
`gzip <file>`	compress a file
`gunzip <file.gz>`	decompress a Gzip file
`unzip <file.zip>`	decompress a Zip file
`tar cvzf <file.tar.gz> <files>`	create a tar with Gzip compression
`tar xvzf <file.tar.gz>`	extract a tar using Gzip

command	description
`man <command>`	display the manual page of the command
`<command> --help`	display usage information and options

command	description
`sbatch submit.sh`	submit a job to the cluster
`squeue`	check the status of submitted jobs
`scancel jobid`	cancel a submitted job
`seff jobid`	show resources of a finished job

command	description
`Ctrl+C`	cancel the current command
`Ctrl+W`	delete a word in the current line
`Ctrl+U`	delete the current line
`Ctrl+R`	search command history
`Ctrl+D`	log out of current session

Βοήθεια / Υποστήριξη

Μπορείτε να επικοινωνήσετε με το support helpdesk μέσω του email hpc-support@auth.gr, για περαιτέρω βοήθεια και υποστήριξη.