linuxshellunixawkunix-text-processing

How to check all multiple keyword should be present in given text or not


I am bit stuck with this how do I check all keyword should exist in my text

If any one keyword is not present then it should return me status : 1 or else 0

keyword='CAP\|BALL\|BAT\|CRICKET'

echo "HE AS CAP AND LOVE TO PLAY BALL BAT , ITS IS CALLED CRICKET" 

My code :

echo "HE AS CAP AND LOVE TO PLAY BALL BAT , ITS IS CALLED CRICKET" | grep -w "$keyword"
echo $? 

Solution

  • With your shown samples and attempts, please try following awk code. Written and tested in GNU awk, should work in any version of awk.

    keyword='CAP|BALL|BAT|CRICKET'
    echo "HE AS CAP AND LOVE TO PLAY BALL BAT , ITS IS CALLED CRICKET" | 
    awk -v key="$keyword" '
    BEGIN{
      num=split(key,arr,"|")
      for(i=1;i<=num;i++){
        value[arr[i]]
      }
    }
    {
      count=0
      for(i=1;i<=NF;i++){
        if($i in value){
          count++
        }
      }
      if(length(value)==count){
        exit 0
      }
      else{
        exit 1
      }
    }
    '
    

    Explanation: Adding detailed explanation for above code.

    keyword='CAP|BALL|BAT|CRICKET'                ##Creating keyword shell variable with values.
    echo " CAP   |  BALL |  BA |  CRICKET    " |  ##Printing values by echo command and sending output to awk command.
    awk -v key="$keyword" '                       ##Starting awk program and creating variable key which has value of keyword in it.
    BEGIN{                                        ##Starting BEGIN section of this awk program from here.
      num=split(key,arr,"|")                      ##Splitting key into array arr with delimiter of | and num will have total number of elements that will come in array.
      for(i=1;i<=num;i++){                        ##Running for loop till value of num.
        value[arr[i]]                             ##Creating array value with index of value of arr here.
      }
    }
    {
      count=0                                     ##Setting count to 0 here.
      for(i=1;i<=NF;i++){                         ##Traversing through all fields here.
        if($i in value){                          ##Checking if current field is present in value.
          count++                                 ##Increasing count with 1 here.
        }
      }
      if(length(value)==count){                   ##Checking if length of value and count is equal then do following:
        exit 0                                    ##Exit from program with status of 0.
      }
      else{                                       ##if all fields are not coming into variable then:
        exit 1                                    ##Exit from program with status of 1.
      }
    }
    '