Question

I am developing simple shell script which copy all my present directory files to backup directory which will be exist in present working directory. now i’m getting error when i pass more then one condition in if.

#!/bin/bash
filename=nx.pdf
for i in *;
 do
 echo $i;
 if [ $i == backup || $i == $filename ] ; then
    echo "Found backup."
 else
 echo "Part 2"
 cp -rf $i backup
 fi
 done

I am getting error

asd.sh: line 6: [: missing `]'
asd.sh: line 6: ==: command not found
Part 2
deployee.sh
asd.sh: line 6: [: missing `]'
asd.sh: line 6: ==: command not found
Part 2

Answer 1

The compare operator is = (as defined in POSIX). But == works on some shells as well.
Something like this should work:

if [ $i = backup ] || [ $i = $filename ] ; then