cheat_sheet.md

Cheat Sheet

Login as root

Change to root when login as any user with root privileged

sudo -i

List all hidden files and directory

ls -a

List all file with filesize

ls -lh

List all directories with directory size

du -sh *

Delete oversize directory

Delete huge file count inside folder

find <dir_path> -type f -delete

or inside current directory

find . -type f -delete

Report file system disk space usage

df -h - will show each first level directory

or

df / -h - will show total

Get total storage of file or directory

du -hs /path/to/directory

Rename/Move file or directory

mv (option) filename1.ext filename2.ext

Copy file/directory

cp <origin_path_to_file_or_directory> <destination_path_to_file_or_directory>

Empty file content

> filename

Remove File

removes files beginning with sequence_1 and ending with .hmf.

rm sequence_1*.hmf

Check Command Path

whereis <command>

or

which <command>

Check Mime Type

file --mime-type -b <filename>

Other packages

https://pypi.python.org/pypi/Glances

Reference

• https://askubuntu.com/questions/5444/how-to-find-out-how-much-disk-space-is-remaining
• https://askubuntu.com/questions/1224/how-do-i-determine-the-total-size-of-a-directory-folder-from-the-command-line
• https://unix.stackexchange.com/questions/37350/how-do-i-remove-multiple-files-with-a-common-prefix-and-suffix