basename Command

The basename command in Linux is a command line utility that is used to extract the base file name from a pathname. The basename command takes a file path as an argument and returns the last element of the path, which is the file name without any leading directories.

Here are some examples of using the basename command:

To get the base file name from the path “/etc/passwd”, you would use the following command:

basename /etc/passwd

This will return the string “passwd”

To get the base file name without the extension of a file, you can use dirname command along with basename command

basename $(dirname /etc/passwd)

This will return the string “etc”

To get the extension of a file, you can use parameter expansion and basename command together:

file=example.txt
echo ${file##*.}

This will return the string “txt”

basename command can also be used with regular expressions for more advanced manipulation, this way you could remove suffix or prefix from the name.

basename command is useful for working with file paths, for example when writing a script that needs to operate on multiple files in a directory, you can use basename to extract the file name from the full path, allowing your script to work with just the file name.

Please let me know if you have any question or need more examples.

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