Misc Tips

Tips from different categories:

• how to get mount point from current working directory

# while true; do findmnt . && break; cd ../;  done

• get all exit codes from pipeline

# true | false |true
# echo ${PIPESTATUS[*]}
1 0 1

• get list of packages to upgrade

# apt-show-versions -u

• get reverse package dependencies (installed)

# apt-cache rdepends --installed <pkg>