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Sometimes we need to get part of the full path of a filename.
I'll use this full path in the examples:
/path/to/you/filename.ext
Say you want only the filename with extension, then you can use "basename":
basename /path/to/you/filename.ext
This results in
filename.ext
Now we can use this is scripts, like so:
~ $ echo $(basename /path/to/you/filename.ext) filename.ext
~ $ myfile=/path/to/you/filename.ext ~ $ echo $(basename $myfile) filename.ext
When using variables, you can do some neat tricks as well, if you want just the extension, or just the filename without extension, or a "double" extension (targ.gz for example):
~ $ myfile="example.tar.gz"
~ $ echo "${myfile%%.*}"
example
~ $ echo "${myfile%.*}"
example.tar
~ $ echo "${myfile#*.}"
tar.gz
~ $ echo "${myfile##*.}"
gz
Anyhoo ... hope this is useful to anyone - keeping it here for my own reference as well 😁