Question

How do I replace echo in all my ksh scripts to echo -e.
Example:

Input

Script containing following lines,

echo "\nE-MAILING TO INTERESTED PARTIES....\n"
set echo off
echo -e "\nE-MAILING TO INTERESTED PARTIES....\n"

OUTPUT:

I should not disturb set echo off command and only change the printing echo commands. If already it is changed to echo -e, I should not replace again. I should replace it in a single shot for all the scripts from root directory.

echo -e "\nE-MAILING TO INTERESTED PARTIES....\n"
set echo off
echo -e "\nE-MAILING TO INTERESTED PARTIES....\n"

Answer 1

This should work –

sed 's/^echo "/echo -e "/' filename

Test:

[jaypal:~/Temp] cat tmp
echo "\nE-MAILING TO INTERESTED PARTIES....\n"
set echo off
echo -e "\nE-MAILING TO INTERESTED PARTIES....\n"
[jaypal:~/Temp] sed 's/^echo "/echo -e "/' tmp
echo -e "\nE-MAILING TO INTERESTED PARTIES....\n"
set echo off
echo -e "\nE-MAILING TO INTERESTED PARTIES....\n"

find and exec:

find /path/to/directory/ -type f -name "*.ksh" -exec sed -i"bak" 's/^echo "/echo -e "/' {} \;