Get the version of:
bash
See the version:
bash --version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin18)
Copyright (C) 2007 Free Software Foundation, Inc.
Get the version:
bash --version | awk '{print $4}' | head -1
3.2.57(1)-release
Get the major version:
bash --version | awk '{print $4}' | head -1 | awk -F. '{print $1}'
3
Check out this post to learn how to parse semver with
awk.
node
See the version:
node --version # node -v
v12.16.2
Cut the v out from the version:
node -v | cut -c 2-
12.16.2
Get the major version:
node -v | cut -c 2- | awk -F. '{print $1}'
12
Check out this post to learn how to parse semver with
awk.
python
See the version:
python --version # python -V
Python 2.7.17
Remove Python from the version:
python -V 2>&1 | awk '{print $2}'
2.7.17
We’re redirecting stderr to stdout with 2>&1 because python writes the version to stderr.
Get the major version:
python -V 2>&1 | awk '{print $2}' | awk -F. '{print $1}'
2
Check out this post to learn how to parse semver with
awk.
php
See the version:
php --version # php -v
PHP 7.1.33 (cli) (built: Jan 26 2020 22:52:32) ( NTS )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.1.0, Copyright (c) 1998-2018 Zend Technologies
Get the version and remove all extraneous details:
php -v | awk '{print $2}' | head -1
7.1.33
Get the major version:
php -v | awk '{print $2}' | head -1 | awk -F. '{print $1}'
7
Check out this post to learn how to parse semver with
awk.
ruby
See the version:
ruby --version # ruby -v
ruby 2.7.0p0 (2019-12-25 revision 647ee6f091) [x86_64-darwin18]
Get the version:
ruby -v | awk '{print $2}'
2.7.0p0
Get the major version:
ruby -v | awk '{print $2}' | awk -F. '{print $1}'
2
Check out this post to learn how to parse semver with
awk.