shell - Tag - Coding Life Sharehttps://blog.xwi88.com/en/tags/shell/shell - Tag - Coding Life ShareHugo -- gohugo.ioen278810732@qq.com (xwi88)278810732@qq.com (xwi88)This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Sat, 12 Mar 2022 09:15:14 +0800Handling Absolute Paths Correctly in Makefile and Shellhttps://blog.xwi88.com/en/makefile-shell-path-get/Sat, 12 Mar 2022 09:15:14 +0800xwi88https://blog.xwi88.com/en/makefile-shell-path-get/Handling absolute paths in Makefile and shell (mainly Bash).

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Makefile

make version: 3.81

BASEDIR = $(dir $(realpath $(firstword $(MAKEFILE_LIST))))

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GNU Make 3.81
Copyright (C) 2006  Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.

This program built for i386-apple-darwin11.3.0

Linux Shell

Bash version: 5.1

  • DIR=$(cd $(dirname $0) && pwd)
  • DIR=$(cd $(dirname $0); pwd)
  • DIR=$(cd dirname $0; pwd)
  • DIR=$(cd $(dirname "${BASH_SOURCE[0]}") && pwd)
  • ROOT_DIR="${DIR##*/}"
  • FILE_NAME=$(basename "$0")
Warning

BASH_SOURCE only works where a bash shell is available

cat /etc/shells lists the shells supported on this machine

Example

For working examples of the above, see: docker-compose-resources

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