We often need to replace strings in a file or multiple files in a Unix system. This can be done easily using the sed command. we can easily replace the strings in multiples in a very short span of time sed replace a string in a file We can use the below command sed ‘s/<string

Many times, we come across a situation where we need to delete lines from a file having the string. The General approach would be to open the file in the vi editor, search the string and then delete the line. This will be quite cumbersome if we have many occurrences and the file is big.

I was working on a certain project last week where I need to insert a line after the match in 100 of files in Linux or Unix operating system. I found that inserting a line after a match using sed is easy. It was pretty successful for me, so I thought I will share this on my