function::str_replace - Linux
Overview
str_replace is a command-line utility designed to perform string replacement operations on text. It efficiently finds and replaces specified substrings with desired replacements within a given string or file. It is especially useful for text processing, data manipulation, and string transformations.
Syntax
function str_replace(string_to_search, substring_to_find, substring_to_replace_with)
- string_to_search: The input string or path to the file containing the string to be modified.
- substring_to_find: The substring that needs to be located and replaced.
- substring_to_replace_with: The replacement substring that will substitute the found substring.
Options/Flags
- -g/:global: Replace all occurrences of the substring instead of just the first occurrence.
- -i/:ignore_case: Perform case-insensitive search and replacement.
- -n: Do not perform the replacement, only display the changes that would be made.
Examples
-
Simple Replacement:
str_replace "Hello World" "World" "Universe"
Output: Hello Universe
-
Case-Insensitive Replacement with -i option:
str_replace -i "TeSt" "s" "T"
Output: TeTt
-
Global Replacement with -g option:
str_replace -g "123" "1" "4"
Output: 424
Common Issues
- Ensuring correct escape sequences for special characters in replacement strings.
- Handling multi-line strings or file paths correctly.
Integration
str_replace can be integrated into shell scripts or combined with other commands:
replaced_string=$(str_replace "my_string" "old" "new")
Related Commands
- sed: Stream editor for performing complex text transformations.
- tr: Translate or delete characters in a string.
- grep: Search for patterns in text.