[SOLVED] getting error unterminated address regex in sed command

Issue

I have a scenario where i want to initialize the value of variable a to sed command at run time

My code :

for i in `cat /d/file1.txt`
do 
    a=$i
    v=`sed $a'p' /d/file2.txt`
    echo "$a : $v" 
done 

This above code give me error : unterminated address regex Getting at command : sed

Solution

It seems like the user is trying to read 2 files parallelly , if that the case

Lets Assume you have 2 files

File1.txt

ABC
XYZ
PQR

File2.txt

FTY
UIO
ASD

Your code :

# Note : Assuming the 2 set of files have equal number of records

#!/bin/sh

# Get count of record from file 
vfile1count="$(grep -vc '^$' /d/file1.txt)"
export vfile1count  

for(( i=1; i<=$(vfile1count); $((i+1)) ))
do 
        f1=$(sed "$i"'p' /d/file1.txt)
        f2=$(sed "$i"'p' /d/file2.txt)
        echo "File 1 : $f1  ---> File 2 : $f2"
done

Output :

ABC --> FTY
XYZ --> UID
PQR --> ASD

Feel free to edit it you see any error's

Answered By - codeholic24