# Sort a file alphabetically:
sort filename
# Sort your command history alphabetically, skipping the command number:
history | sort -k 2
# Lines look like this:
# 23 anothercommand
# 22 somecommand
# 24 stillanothercommand
# Sort files by number of matches in grep results:
grep -c searchterm * | sort -t: -n -k 2
# Lines look like this:
# filename:2
# anotherfile:3
# Sort files by human readable size in a directory:
du -h --max-depth=1 | sort -h
# Lines look like this:
# 4.0K ./SomeDirectory
# 12K ./AnotherDirectory
# 2.4M ./SomeFile
# 1.5G ./LargeFile