Linux

Disk and Files

Find disk usage for the current working directory

sudo du --max-depth=1 --block-size=MB ./* | sort -n

Find all hardlinks

find -type f -links +1

APT

Fix APT when stuck on User prompt from automated process:

sudo fuser -vki -TERM /var/lib/dpkg/lock var/lib/dpkg/lock-frontend
sudo dpkg --configure -a

Another option:

sudo fuser --vki /var/cache/debconf/config.dat

Fix broken packages

sudo apt install -y --fix-broken

Run a shell script remotely without transferring to disk

ssh -o ConnectTimeout=10 -T node1 "VAR1=${VAR1} bash -s" < ./script.sh