How to search for a string in all git commits
Sep 18, 2025 am 01:54 AM
To search for a string across all Git commits, use git log -S"string" to find commits that added or removed the string, git log -G"regex" for pattern matching in diffs, or git grep "string" $(git rev-list --all) to search all file versions throughout history.
To search for a specific string across all Git commits, you need to look through the actual content of changes, not just commit messages. Git doesn't index file content by default, so you'll use commands that scan through commit diffs or use built-in search tools. Here’s how to do it effectively.
Use git log with pickaxe (-S)
The -S option (also known as "pickaxe") finds commits that introduced or removed a specific string.
Example:- git log -S"your-search-string" – shows commits where the number of occurrences of "your-search-string" changed.
This is useful when you know a function or variable was added/removed and want to find when it happened.
Search for added or deleted lines with -G (regex)
If you want to match a pattern instead of an exact string, use -G with a regex.
Example:- git log -G"password.*secret" – finds commits with diffs matching the regex.
Note: -G searches in the diff content, not commit messages or file names.
Search in all commit content including old file versions
To search through the entire content of every file in every commit, use git grep combined with git rev-list.
Command:- git grep "your-string" $(git rev-list --all) – searches for "your-string" in all files and all commits.
If you get "argument list too long" errors, use a loop:
<font>git rev-list --all | xargs -I {} git grep -F "your-string" {}</font>
Include binary files (optional)
If the string might be in binary files, add --text to treat them as text:
- git grep --text "your-string" $(git rev-list --all)
These methods let you find when and where a string appeared or disappeared in your project’s history. Pick the one that fits your need: quick change detection (-S), pattern matching (-G), or full historical content search (git grep rev-list).
Basically, if you’re looking for code changes, start with -S. If you need to find any occurrence ever, go with git grep over all revisions.
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