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  1. #!/bin/bash
  2. tso='salary 23000'
  3. salary=$(grep -oP 'salary *0*\K[1-9][0-9]*' <<< "$tso")
  4. echo $salary
  5.  
  6. if [ $salary -gt 0 ]; then
  7. echo "it is mnc.....";
  8. else
  9. echo "it is unknown.....";
  10. fi
Success #stdin #stdout 0.01s 5492KB
stdin
Standard input is empty
stdout
23000
it is mnc.....