Category: Documentations

In bash scripting, the replacement of string is important because it allows you to modify a variable and the text of a file. It also helps in file and text processing and to validate user input.

To replace a string in bash, check the following methods:

1. Using Parameter expansion: ${String/pattern/replacement}
2. Using the sed command: sed 's/pattern/replacement/' filename
3. Using the awk command: "input_str" | awk 'pattern { action }'
4. Using the perl command: perl [options] -e 'action' filename
5. Using the tr command: tr 'old_chars' 'new_chars' < "input_file"

Dive into the article to learn these methods of how to replace a bash string in detail.

Source: How to Replace String in Bash? [5 Methods] – LinuxSimply