Awesome command line one-liners

awesome-cli.txt

# Generate a random password
openssl rand -base64 18

# Display total size of a single directory in human-readable format
du -csh /home/oliver/

# Display size of everything in a directory in human-readable format
du -csh /home/oliver/*

# Compare the output of two programs without having to save it into files first.
# Use subshells to execute the command pipelines individually, by enclosing the pipeline within parenthesis. 
# Then prefix these with < to create anonymous named pipes which can be pass to diff.
diff <(snap find "python2") <(snap find "media player")

# Find my IP address
curl -s api.ipify.org

Collect all relevant PIDs and join with a ,

(ps -e -o pid,comm | grep gitkraken | cut -f2 -d ' ') | sed ':a; N; $!ba; s/\n/,/g'