壳牌工作目录？

Shell 脚本的工作目录是什么？我是从这个工作目录打来的吗？或脚本所在的目录？

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You could do this yourself by checking the output from pwd when running it. This will print the directory you are currently in. Not the script.

If your script does not switch directories, it'll print the directory you ran it from.

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最佳答案

The current(initial) directory of shell script is the directory from which you have called the script.

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As already mentioned, the location will be where the script was called from. If you wish to have the script reference it's installed location, it's quite simple. Below is a snippet that will print the PWD and the installed directory:

#!/bin/bash
echo "Script executed from: ${PWD}"


BASEDIR=$(dirname $0)
echo "Script location: ${BASEDIR}"

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Most answers get you the current path and are context sensitive. In order to run your script from any directory, use the below snippet.

DIR="$( cd "$( dirname "$0" )" && pwd )"

By switching directories in a subshell, we can then call pwd and get the correct path of the script regardless of context.

You can then use $DIR as "$DIR/path/to/file"

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To print the current working Directory i.e. pwd just type command like:

echo "the PWD is : ${pwd}"

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you could also do it completely using posix shell script

#!/bin/sh


get_current_directory() {
current_file="${PWD}/${0}"
echo "${current_file%/*}"
}


CWD=$(get_current_directory)
echo "$CWD"

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Adding to this comment, I think most optimized and logic way is:

realpath `dirname $0`

realpath $(dirname $0)