string comparison with [ ] fails

Asked May 05 '20 at 14:24

Active May 05 '20 at 15:38

Viewed 26 times

#!/bin/bash
echo "Enter any string"
read string
string1 = $(echo $string | rev)
if ["$string" == "$string1"]
then
     echo "String is palindrome"
else
     echo "String is not Palindrome"
fi

I am trying to check whether a string is a palindrome or not. Below is the error I get:

# ./palindrome.sh
Enter any string
mom
./palindrome.sh: line 5: string1: command not found
./palindrome.sh: line 6: [mom: command not found
String is not Palindrome

edited May 05 '20 at 15:38

fpmurphy

4,636

asked May 05 '20 at 14:24

Adil Ali

There may be a better duplicate, but there's at least https://unix.stackexchange.com/q/117438/117549 (linked to from https://unix.stackexchange.com/questions/562423/getting-a-01-command-not-found-error-at-the-if-statement-line) – Jeff Schaller May 05 '20 at 14:27
@Inian I did that change but it says string1: command not found – Adil Ali May 05 '20 at 14:30
@JeffSchaller Go to the [tag:test] tag wiki to find a likely duplicate – Gilles 'SO- stop being evil' May 05 '20 at 14:31
@AdilAli: Also string1=$(echo "$string" | rev) no spaces – Inian May 05 '20 at 14:31
string1 = $( => string1=$( – Hauke Laging May 05 '20 at 14:31

string comparison with [ ] fails

0 Answers0