What does the basename command do in Linux?

The basename command is used to return the non-directory portion of a pathname. It can also remove a specified suffix from the filename.

How do I get just the filename from a path?

Use 'basename /path/to/your/file.txt' which will output 'file.txt'.

Can basename remove file extensions?

Yes, use 'basename /path/to/your/file.txt .txt' to remove the '.txt' suffix, resulting in 'file'.

basename Command

The basename command is used to extract the filename or the last component of a pathname. It can also remove a specified suffix from the filename.

Syntax

basename NAME [SUFFIX]
basename OPTION... NAME...

Description

basename prints the name of the file or directory without its leading directory components. If a suffix is provided, it will be removed from the name. This command is often used in shell scripts to manipulate file paths.

Common uses include:

Extracting just the filename from a full path
Removing file extensions
Processing multiple pathnames

Common Options

Option	Description
`-a, --multiple`	Support multiple arguments and treat each as a NAME
`-s, --suffix=SUFFIX`	Remove a trailing SUFFIX from NAME
`--zero`	End each output line with NUL, not newline

Examples

Extract filename from a path

                        basename /home/user/documents/report.txt
                        
                        # Output: report.txt

This example extracts just the filename from the given absolute path.

Extract filename and remove suffix

                        basename /home/user/documents/report.txt .txt
                        
                        # Output: report

This example removes the .txt extension from the filename.

Process multiple files

                        basename -a /dir1/file1.log /dir2/file2.tar.gz
                        
                        # Output:
                        # file1.log
                        # file2.tar.gz

Using the -a option to process multiple pathnames.

Remove suffix from multiple files

                        basename -a -s .log /var/log/syslog.log /var/log/auth.log
                        
                        # Output:
                        # syslog
                        # auth

Removes the .log suffix from multiple log files.