basename Overview
`basename` returns the string after the last slash (/) in a given path string. In other words, it is a command that retrieves only the name part from the full path of a file or directory.
Role of basename
The `basename` command is primarily used in the following situations:
Key Application Areas
- Shell Scripts: When extracting only filenames to perform specific operations in file processing loops.
- Log Analysis: When filtering only filenames from logs that include paths to create statistical data.
- Automation: When generating or processing other filenames based on a file name.
Main basename Command Options
The `basename` command is simple, but it can perform additional functions, such as removing specific extensions, through useful options.
1. Basic Usage
2. Extension Removal Option
Generated command:
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Description:
`basename` Executes the command.
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Usage Examples
Practice filename extraction and processing through practical examples of the `basename` command.
Extract filename from file path
basename /home/user/documents/report.pdfExtracts the pure filename `report.pdf` from the path `/home/user/documents/report.pdf`.
Extract last directory name from directory path
basename /var/log/apache2/Extracts the last directory name `apache2` from the path `/var/log/apache2/`.
Remove file extension
basename image.png .pngRemoves the `.png` extension from the filename `image.png`, leaving only `image`.
Remove complex extension
basename archive.tar.gz .tar.gzRemoves the `.tar.gz` extension from `archive.tar.gz`, leaving only `archive`.
Example of basename usage in a script
for file in *.log; do
base_name=$(basename "$file" .log)
echo "Processing: $base_name"
doneAn example shell script that uses a for loop to print only the base names of files with the `.log` extension.