find the pattern in a file where both pattern and file have differnt number of lines and space

wedtorque · 05-31-2017, 04:05 AM

I have a variable that store a string.I am taking a worst case here

Code:

 var='this is 
    my 
          name'

how to find whether this variable is present in a file.txt or not

This is my file.txt

Code:

hi all
    this 
           is my 
              name
    but no one likes it

What i have tried

Code:

if grep -Fwq "$var" file.txt 
    then
    echo "Duplicate"
    fi

but this work only when both var and file.txt have common space and newline format

pan64 · 05-31-2017, 06:32 AM

Quote:

Originally Posted by wedtorque

I have a variable that store a string.I am taking a worst case here

Code:

 var='this is 
    my 
          name'

which language is it at all?

Quote:

Originally Posted by wedtorque

how to find whether this variable is present in a file.txt or not

This is my file.txt

Code:

hi all
    this 
           is my 
              name
    but no one likes it

I would read that var into a local variable and read that file into another one (keeping spaces, newline, whatever) and now I only need to check if var2 contains var2.
That can be easily solved using perl/python/c/whatever, probably awk too.

Quote:

Originally Posted by wedtorque

but this work only when both var and file.txt have common space and newline format

I do not know if you want to preserve those spaces or what to do with them?

BW-userx · 05-31-2017, 09:02 AM

are you just trying to find it or fix it??

to find it I figured this out --

Code:

#!/bin/bash


subString="this is my name"

while read FILE
do
{

FILE2="$(awk '{printf("%s",$0)}' | fmt -u)"

echo "FILE2: $FILE2"


if [[ "$FILE2" =~ "$subString" ]] ;
then

echo "got it"

fi

}
done <matchTestFIle

test file is yours.

Code:

hi all
    this
           is my
              name
    but no one likes it

results are this

Code:

userx%slackwhere ⚡ testing ⚡> ./findmatches 
FILE2:     this is my name but no one likes it
got it
userx%slackwhere ⚡ testing ⚡>