Issue

I am searching multiple words in single search like below

egrep -rin 'abc|bbc' folder

I am want to get an output with search keyword in the result like

abc:folder/1.txt:32:abc is here
bbc:folder/ss/2.txt:2:    bbc is here

Solution

Here's some ways:

Post process after all the results:

grep -rinE 'abc|bbc' folder | sed '/abc/{s/^/abc:/; b}; s/^/bbc:/'

If there are many search terms:

$ for p in abc bbc; do echo "/$p/{s/^/$p:/; b};" ; done > script.sed
$ cat script.sed
/abc/{s/^/abc:/; b};
/bbc/{s/^/bbc:/; b};

$ grep -rinE 'abc|bbc' folder | sed -f script.sed

Note that this solution and the next one both will need attention if contents of the search terms can conflict with sed metacharacters.

Post process for each search term:

# add -F option for grep if search terms are fixed string
# quote search terms passed to the for loop if it can contain metacharacters
for p in abc bbc; do grep -rin "$p" folder | sed 's/^/'"$p"':/'; done

With find+gawk

$ cat script.awk
BEGIN {
    OFS = ":"
    a[1] = @/abc/
    a[2] = @/bbc/
}

{
    for (i = 1; i <= 2; i++) {
        if ($0 ~ a[i]) {
            print a[i], FILENAME, FNR, $0
        }
    }
}

$ find folder -type f -exec awk -f script.awk {} +

If you are searching for fixed strings:
- Change array to a[1] = "abc" and a[2] = "bbc"
- Change the condition to if (index($0, a[i]))

Answered By - Sundeep

Friday, November 12, 2021

[SOLVED] egrep add search pattern in result

Issue

Solution