[ :Unexpected operator in shell programming [dupli

Question

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Unexpected operator error [duplicate] (4 answers)

Closed 4 years ago.

My code:

    #!/bin/sh
    #filename:choose.sh
    read choose
    [ "$choose" == "y" -o "$choose" == "Y" ] && echo "Yes" && exit 0
    [ "$choose" == "n" -o "$choose" == "N" ] && echo "No"  && exit 0
    echo "Wrong Input" && exit 0

But when I execute

    sh ./choose.sh

terminal prompt me that

   [: 4: n: :Unexpected operator
   [: 5: n: :Unexpected operator

Is there any mistake in my bash script? Thanks!

Answer 1

To execute it with Bash, use #!/bin/bash and chmod it to be executable, then use

./choose.sh