总结:

FULL_PATH_TO_SCRIPT="$(realpath "${BASH_SOURCE[-1]}")"

# OR, if you do NOT need it to work for **sourced** scripts too:
# FULL_PATH_TO_SCRIPT="$(realpath "$0")"

# OR, depending on which path you want, in case of nested `source` calls
# FULL_PATH_TO_SCRIPT="$(realpath "${BASH_SOURCE[0]}")"

# OR, add `-s` to NOT expand symlinks in the path:
# FULL_PATH_TO_SCRIPT="$(realpath -s "${BASH_SOURCE[-1]}")"

SCRIPT_DIRECTORY="$(dirname "$FULL_PATH_TO_SCRIPT")"
SCRIPT_FILENAME="$(basename "$FULL_PATH_TO_SCRIPT")"

细节:

在很多情况下,所有你需要获得的是你刚刚打电话的脚本的完整路径. 这可以很容易地通过 realpath 实现. 请注意, realpath 是 GNU 核心工具的一部分. 如果你没有它已经安装(它是默认的在 Ubuntu 上),你可以安装它与 sudo apt 更新 && sudo apt 安装核心工具。

#!/bin/bash

# A. Obtain the full path, and expand (walk down) symbolic links
# A.1. `"$0"` works only if the file is **run**, but NOT if it is **sourced**.
# FULL_PATH_TO_SCRIPT="$(realpath "$0")"
# A.2. `"${BASH_SOURCE[-1]}"` works whether the file is sourced OR run, and even
# if the script is called from within another bash function!
# NB: if `"${BASH_SOURCE[-1]}"` doesn't give you quite what you want, use
# `"${BASH_SOURCE[0]}"` instead in order to get the first element from the array.
FULL_PATH_TO_SCRIPT="$(realpath "${BASH_SOURCE[-1]}")"
# B.1. `"$0"` works only if the file is **run**, but NOT if it is **sourced**.
# FULL_PATH_TO_SCRIPT_KEEP_SYMLINKS="$(realpath -s "$0")"
# B.2. `"${BASH_SOURCE[-1]}"` works whether the file is sourced OR run, and even
# if the script is called from within another bash function!
# NB: if `"${BASH_SOURCE[-1]}"` doesn't give you quite what you want, use
# `"${BASH_SOURCE[0]}"` instead in order to get the first element from the array.
FULL_PATH_TO_SCRIPT_KEEP_SYMLINKS="$(realpath -s "${BASH_SOURCE[-1]}")"

# You can then also get the full path to the directory, and the base
# filename, like this:
SCRIPT_DIRECTORY="$(dirname "$FULL_PATH_TO_SCRIPT")"
SCRIPT_FILENAME="$(basename "$FULL_PATH_TO_SCRIPT")"

# Now print it all out
echo "FULL_PATH_TO_SCRIPT = \"$FULL_PATH_TO_SCRIPT\""
echo "SCRIPT_DIRECTORY    = \"$SCRIPT_DIRECTORY\""
echo "SCRIPT_FILENAME     = \"$SCRIPT_FILENAME\""

如果您在脚本中使用“$0”而不是“${BASH_SOURCE[-1]}”,则在运行脚本时,您将获得相同的输出,而不是在提取脚本时,您将获得此不需要的输出:

~/GS/dev/eRCaGuy_hello_world/bash$ . get_script_path.sh 
FULL_PATH_TO_SCRIPT               = "/bin/bash"
SCRIPT_DIRECTORY                  = "/bin"
SCRIPT_FILENAME                   = "bash"

路径与路径之间的区别:

请注意,直路也成功地走下象征性链接来确定并指向他们的目标,而不是指向象征性链接。 如果你不想要这种行为(有时我不),然后添加到上面的直路命令,使该线看起来像这样:

# Obtain the full path, but do NOT expand (walk down) symbolic links; in
# other words: **keep** the symlinks as part of the path!
FULL_PATH_TO_SCRIPT="$(realpath -s "${BASH_SOURCE[-1]}")"

参考:

[我的答案] Unix 和 Linux:确定路径到源头 Shell 脚本

此分類上一篇: Mac OS X v10.6.6 (Snow Leopard):

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

还有另一个选项:

SELF=$(SELF=$(dirname "$0") && bash -c "cd \"$SELF\" && pwd")
echo "$SELF"

它在 macOS 上也起作用,确定了频道路径,并且不会改变当前的目录。

pwd 可以用来找到当前工作目录,而 dirname 可以用来找到特定文件的目录(运行命令为 $0,所以 dirname $0 应该给你当前脚本的目录)。

然而,字体名称给出了字体名称的目录部分,这更有可能与当前工作目录无关,如果你的脚本需要因某种原因更改目录,那么字体名称的输出就会变得毫无意义。

我建议如下:

#!/usr/bin/env bash

reldir="$( dirname -- "$0"; )";
cd "$reldir";
directory="$( pwd; )";

echo "Directory is ${directory}";

这样,你就得到一个绝对的,而不是一个相对的目录。

由于脚本将在一个单独的Bash例子中运行,没有必要恢复工作目录后,但如果你想因某种原因改变你的脚本,你可以轻松地将PWD的值分配给一个变量,在你更改目录之前,用于未来的使用。

雖然只是

cd "$( dirname -- "$0"; )";

解决这个问题的具体场景,我发现有绝对的道路到更有用的一般。

以下是获取脚本信息的简短方式:

文件和文件:

    Script: "/tmp/src dir/test.sh"
    Calling folder: "/tmp/src dir/other"

使用这些命令:

    echo Script-Dir : `dirname "$(realpath $0)"`
    echo Script-Dir : $( cd ${0%/*} && pwd -P )
    echo Script-Dir : $(dirname "$(readlink -f "$0")")
    echo
    echo Script-Name : `basename "$(realpath $0)"`
    echo Script-Name : `basename $0`
    echo
    echo Script-Dir-Relative : `dirname "$BASH_SOURCE"`
    echo Script-Dir-Relative : `dirname $0`
    echo
    echo Calling-Dir : `pwd`

我得到了这个结果:

     Script-Dir : /tmp/src dir
     Script-Dir : /tmp/src dir
     Script-Dir : /tmp/src dir

     Script-Name : test.sh
     Script-Name : test.sh

     Script-Dir-Relative : ..
     Script-Dir-Relative : ..

     Calling-Dir : /tmp/src dir/other

此分類上一篇: https://pastebin.com/J8KjxrPF

function getScriptAbsoluteDir { # fold>>
    # @description used to get the script path
    # @param $1 the script $0 parameter
    local script_invoke_path="$1"
    local cwd=`pwd`

    # absolute path ? if so, the first character is a /
    if test "x${script_invoke_path:0:1}" = 'x/'
    then
        RESULT=`dirname "$script_invoke_path"`
    else
        RESULT=`dirname "$cwd/$script_invoke_path"`
    fi
} # <<fold