How to Replace a Word in Files, File Names, and Folder Names on Ubuntu

Using Ubuntu Commands to Replace Words

When working on development projects, you may encounter scenarios where you need to replace a specific word or string (e.g., abc) with another (e.g., xyz) across files, file names, and folder names. Manually making these changes can be time-consuming and error-prone. This article explains how you can do this using simple commands in Ubuntu.

Replace Text Inside Files

To replace occurrences of a specific word or string in the content of all files recursively, you can use the sed command:

find /path/to/root/folder -type f -exec sed -i 's/abc/xyz/g' {} +

Replace Words in File Names

To replace abc with xyz in file names, use the rename command:

find /path/to/root/folder -type f -name "*abc*" -exec rename 's/abc/xyz/' {} +

Replace Words in Folder Names

Renaming directories containing abc is slightly more complex. Use the following script:

find /path/to/root/folder -type d -name "*abc*" | while read dir; do

mv "$dir" "$(echo $dir | sed 's/abc/xyz/g')"

done

Combine All Commands

To apply all three replacements (in folder names, file names, and file content), you can combine the commands:

# Replace content inside files
find /path/to/root/folder -type f -exec sed -i 's/abc/xyz/g' {} +

# Replace file names
find /path/to/root/folder -type f -name "*abc*" -exec rename 's/abc/xyz/' {} +

# Replace folder names
find /path/to/root/folder -type d -name "*abc*" | while read dir; do
mv "$dir" "$(echo $dir | sed 's/abc/xyz/g')"
done

Explanation of Commands

Content Replacement (sed)

sed -i 's/abc/xyz/g': Replaces all occurrences of abc with xyz in the content of files.
Find /path/to/root/folder -type f: Searches for all files.

File Name Replacement

rename 's/abc/xyz/': Changes file names containing abc to xyz.

Folder Name Replacement

find ... -type d | while read dir: Iterates through all directories containing abc.
mv "$dir": Renames each directory by replacing abc with xyz.

By using these commands, you can save time and effort when replacing words across files, file names, and folders. Whether you’re updating a codebase, refactoring a project, or simply standardising naming conventions, these automation techniques are invaluable.

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in Miscellaneous

Dharmesh Patel 13 December, 2024