[SOLVED] Find and replace inside a string variable using sed command - shell scripting

Issue

lets say I have a string variable variable

var="This line is with OldText"

I want to find and replace the text inside this variable The method that I tried is,

echo $var | sed -i "s/OldText/NewText/g"  >> result.log

in this case this gives an error saying "no input files". The expected output is ,

"This line is with NewText"

what is the correct method to do this using sed, awk or any other method.

Solution

You don't use -i, as that's for changing a file in place. If you want to replace the value in the variable, you need to reassign to it.

Answered By - ndc85430

Answer Checked By - Marie Seifert (WPSolving Admin)