Get just the filename from a path in a Bash script [duplicate]

by

Many UNIX-like operating systems have a basename executable for a very similar purpose (and dirname for the path):

pax> full_name=/tmp/file.txt
pax> base_name=$(basename ${full_name})
pax> echo ${base_name}
file.txt

That unfortunately just gives you the file name, including the extension, so you’d need to find a way to strip that off as well.

So, given you have to do that anyway, you may as well find a method that can strip off the path and the extension.

One way to do that (and this is a bash-only solution, needing no other executables):

pax> full_name=/tmp/xx/file.tar.gz
pax> xpath=${full_name%/*} 
pax> xbase=${full_name##*/}
pax> xfext=${xbase##*.}
pax> xpref=${xbase%.*}
pax> echo "path="${xpath}", pref="${xpref}", ext="${xfext}""

path="/tmp/xx", pref="file.tar", ext="gz"

That little snippet sets xpath (the file path), xpref (the file prefix, what you were specifically asking for) and xfext (the file extension).

More Related Contents:

  1. How do I split a string on a delimiter in Bash?
  2. Correct Bash and shell script variable capitalization
  3. How to urlencode data for curl command?
  4. Why equal to operator does not work if it is surrounded by space?
  5. sudo echo “something” >> /etc/privilegedFile doesn’t work [duplicate]
  6. How can I declare and use Boolean variables in a shell script?
  7. Test for non-zero length string in Bash: [ -n “$var” ] or [ “$var” ]
  8. How can I suppress all output from a command using Bash?
  9. Random number from a range in a Bash Script
  10. How to get a password from a shell script without echoing
  11. How to get the part of a file after the first line that matches a regular expression
  12. Copy folder recursively, excluding some folders
  13. Passing arguments by reference
  14. How to resolve symbolic links in a shell script
  15. Why equal to operator does not work if it is not surrounded by space?
  16. Extract version number from a string
  17. How to tell if a string is not defined in a Bash shell script
  18. Is there a way to avoid positional arguments in bash?
  19. What does `kill -0 $pid` in a shell script do?
  20. Can a shell script set environment variables of the calling shell? [duplicate]
  21. How can I remove the extension of a filename in a shell script?
  22. Find multiple files and rename them in Linux
  23. How can I count all the lines of code in a directory recursively?
  24. How does Ctrl-C terminate a child process?
  25. Running multiple commands in one line in shell
  26. Concatenating multiple text files into a single file in Bash
  27. How to remove filename prefix with a Posix shell
  28. What does ” 2>&1 ” mean?
  29. bash script order of execution
  30. Counter increment in Bash loop not working

Leave a Comment