Shell useful tools

shell_goodies.sh

# Total number of files in Folder
ls -l FOLDER | egrep -c '^-'

# Rename all files in Folder
for f in *; do [[ -f "$f" ]] && mv "$f" "UNIX_$f"; done
# or
ls | xargs -I {} mv {} Unix_{}

# output files from /dist to filenames.txt
find /dist -type f -maxdepth 1 > filenames.txt

# Copy a big amount of files from source to destination
find source/ -type f -maxdepth 1 -exec sh -c 'mv "$@" "$0"' destination/ {} +

# list files and directories
ls -d "$PWD"/* > result.txt

# sort directories by size
sudo du -sh * | sort -hr