Get multiple strings from a file and replace them in another file with AWK

Get multiple strings from a file and replace them in another file

I have multiple strings (old strings) and their sustitution (new strings) in tab limited format in a file named as string. I want to replace them in another file named as Inputfile and save in Outfile.

Script

awk '
NR==FNR {
    old[NR] = $1
    gsub(/&/,RS,$2)
    new[NR] = $2
    next
}
{
    for (i=1; i in old; i++) {
        gsub(old[i],new[i])
    }
    gsub(RS,"\\&")
    print
}
' string Inputfile >Outfile

Extract Part of a FASTA Sequences with Position by python script HERE

Sanjay Singh

Get multiple strings from a file and replace them in another file with AWK

Get multiple strings from a file and replace them in another file

Script

Terminal screenshot

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