Comparing dot-separated version numbers in shell script (one-liners)

comparing_dot-separated_version_numbers.sh

# Comparing dot-separated version numbers in one line

# How to say $a >= $b using various tools and languages?
a=1.10.0
b=1.9.5

set -e

# POSIX
[ "$({ echo $a; echo $b; } | sort -n -t. -k1,1 -k2,2 -k3,3 | tail -n1)" = "$a" ]

# GNU sort
[ "$({ echo $a; echo $b; } | sort -V | tail -n1)" = "$a" ]

# awk
{ echo $a; echo $b; } | awk -F. '{for(i=1;i<=NF;i++)v[NR]=v[NR]sprintf("%05d",$i)}END{exit!(v[1]>=v[2])}'

# Perl
perl -Mversion -e '($a,$b)=map{qv("v$_")}@ARGV;exit(!($a>=$b))' "$a" "$b"

# Ruby
ruby -e 'a,b=$*.map{Gem::Version.new(_1)};exit(a>=b)' "$a" "$b"
ruby -e 'exit($*.map{Gem::Version.new(_1)}.reduce(:>=))' "$a" "$b"
# Ruby >=3.1
ruby -e 'a,b=$*;exit(Gem::Version.new(a)>=b)' "$a" "$b"

# jq
echo "$a $b" | jq -eR 'split(" ")|map(split(".")|map(tonumber))|.[0]>=.[1]' >/dev/null
jq --arg a "$a" --arg b "$b" -en '[$a,$b]|map(split(".")|map(tonumber))|.[0]>=.[1]' >/dev/null

# dpkg (Debian/Ubuntu)
dpkg --compare-versions "$a" ge "$b"