Useful 1-line Linux Shell Scripts
for procID in $(ps aux | grep "\[" | awk -F' ' '{print $2}');do a=$(wc -c /proc/$procID/maps | awk -F' ' '{print $1}');if [[ $a -gt 0 ]]; then echo $procID; fi; done
for i in {1..1024};do (echo </dev/tcp/192.168.0.1/$i) &>/dev/null && echo -e "$i -- OPEN";done
hexdump -v -e '/1 "%02X "' /proc/6801/cmdline | sed 's/00/0a/g' | xxd -r -p
for i in {128..191};do for j in {0..255}; do a=$(curl --silent https://en.wikipedia.org/wiki/Special:Contributions/198.81.$i.$j | grep -i diff); if [ "$(echo $a | wc -c)" -gt "1" ]; then echo "198.81.$i.$j"; fi; done;done