bash compare code example

Example 1: test string equality bash

strval1="Ubuntu"
strval2="Windows"

#Check equality two string variables

if [ $strval1 == $strval2 ]; then
  echo "Strings are equal"
else
  echo "Strings are not equal"
fi

#Check equality of a variable with a string value

if [ $strval1 == "Ubuntu" ]; then
  echo "Linux operating system"
else
  echo "Windows operating system"
fi

Example 2: how to compare strings in zsh script

#!/bin/sh

argn=$#
i=0

for arg do
   shift
   i=$(( i + 1 ))

   if [ "$i" -lt "$argn" ]; then
       set -- "$@" ssh -t "$arg"
   else
       set -- "$@" "/pathtofile/$arg/log.log"
   fi
done

command "$@"