In this tutorial, How do I modifying individual text fields in bash script? Bash Script the essential for DevOps Roles. I run the script on a Linux server.

• Input: string is “HHHHHHHH“
• Output: AHHHHHHH, BHHHHHHH, CHHHHHHH, DHHHHHHH, XHHHHHHH, ZHHHHHHH

Modifying individual text fields in Bash Script

#!/bin/bash
STRING="HHHHHHHH"
COUNT=1
echo "Input: $STRING"
while [ "$COUNT" -le "${#STRING}" ]; do
   for i in A B C D X Y Z
   do
       printf '%s%s%s\n' "${STRING:0:COUNT-1}" "$i" "${STRING:COUNT}"
   done
   COUNT=$(( COUNT + 1 ))
   break
done

The screen output terminal as below

[vagrant@app1 ~]$ ./bashscript.sh
Input: HHHHHHHH
AHHHHHHH
BHHHHHHH
CHHHHHHH
DHHHHHHH
XHHHHHHH
YHHHHHHH
ZHHHHHHH

For example, You delete break line in the loop while 🙂 

The result, delete break line in the loop while as below

Conclusion

Through the article, You can “Modifying individual text fields in Bash Script“ as above. I hope will this your helpful.