i-bash/examples/scripts.noah/bash_version.bash
2009-09-12 16:46:49 +00:00

42 lines
1 KiB
Bash

# bash_version.bash --- get major and minor components of bash version number
# Author: Noah Friedman <friedman@prep.ai.mit.edu>
# Created: 1993-01-26
# Last modified: 1993-01-26
# Public domain
# Converted to bash v2 syntax by Chet Ramey
# Commentary:
# Code:
#:docstring bash_version:
# Usage: bash_version {major|minor}
#
# Echo the major or minor number of this version of bash on stdout, or
# just echo $BASH_VERSION if no argument is given.
#:end docstring:
###;;;autoload
function bash_version ()
{
local major minor
case "$1" in
major) echo "${BASH_VERSION/.*/}" ;;
minor) major="${BASH_VERSION/.*/}"
minor="${BASH_VERSION#${major}.}"
echo "${minor%%.*}" ;;
patchlevel) minor="${BASH_VERSION#*.*.}"
echo "${minor%(*}" ;;
version) minor=${BASH_VERSION/#*.*./}
echo ${BASH_VERSION/%.$minor/} ;;
release) echo ${BASH_VERSION%(*} ;;
build) minor="${BASH_VERSION#*.*.*(}"
echo ${minor%)} ;;
*) echo "${BASH_VERSION}" ;;
esac
}
provide bash_version
# bash_version.bash ends here