Limit bash while loop to 10 retries

Question

How can this while loop be limited to maximum 10 retries?

#!/bin/sh
while ! test -d /somemount/share/folder
do
    echo \"Waiting for mount /somemount/share/         


        

Answer 1

You can use until (instead of "while ! ... break), with a counter limit:

COUNT=0
ATTEMPTS=10
until [[ -d /somemount/share/folder ]] || [[ $COUNT -eq $ATTEMPTS ]]; do
  echo -e "$(( COUNT++ ))... \c"
  sleep 1
done
[[ $COUNT -eq $ATTEMPTS ]] && echo "Could not access mount" && (exit 1)

Notes:

• Just like setting counter as variable, you can set var condition="[[ .. ]]", and use until eval $condition to make it more generic.

• echo $(( COUNT++ )) increases the counter while printing.

• If running inside a function, use "return 1" instead of "exit 1".