CODEWITHSUNDEEP
shellloopswhile-loopgrep
Ali Ashram
Ali Ashram

Reputation: 1

using grep to look for a phrase in shell output with While loop

Hello I'm new to shell scripting and looking to use a terminal command with a while loop and grep for a certain phrase "TEST_PASS" or "Test_Skip" or "Test_Failed" in the output.

if the phrase "TEST_PASS" in the terminal output then exit the loop.

else if the phrase "Test_Skip" or "Test_Failed" is in the output then retry command again.

I thought it would go something like this: 

while ! #Command# | grep -i "TEST_PASS"

any help would be great.

thanks much

Upvotes: 0

Views: 176

Answers (1)

mathB
mathB

Reputation: 634

How about this?

<your command goes here> | grep -q "TEST_PASS"
retry=`echo $?`
while [ $retry -ne 0 ]
do
    <your command goes here> | grep -q "TEST_PASS"
    retry=`echo $?`
done
echo "Test Passed!"

Upvotes: 2

Related Questions