bash.md

General

If you have a large amount of files to delete, use xargs:

find . -name <pattern of files to delete> | xargs rm -v

User management

Change password for user

sudo passwd <username>

Login as user

sudo su <username>

Disk space

Use du (disk usage, with -h flag for human readable format) to show the remaining space in a directors

du -h

Open ports

Output the ports the machine is listening on

sudo lsof -i | grep LISTEN

Package management

Debian-style systems using apt

Doing upgrades

Package upgrades

apt-get update && apt-get upgrade

Distro upgrades

sudo do-release-upgrade

Fix broken and held back packages

Broken packages

sudo apt install --fix-broken

"Package <xxx> has been held back"

sudo apt install --upgrade <xxx>

Resolving cuda issues

Querying system status

Check whether videocards are correctly recognized by the machine

lspci | grep -i vga

Check kernel buffer information on video cards

dmesg | grep -i vga