shopt -s extglob
Turn on glob pattern matching of filenames.
sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n
Sort lines containing version numbers such as:
1.2.3
1.16.2
e.g. curl -s https://api.github.com/repos/wayneeseguin/rvm/tags |
sed -n '/"name": / {s/^.*".*": "\(.*\)".*$/\1/; p;}' |
sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n
typeset
Declare semi-strongly typed variables.
builtin cd
Execute "cd" - useful for redefining a
function whose name is the same as a shell builtin
