基本上我需要运行与shell脚本文件位置相关的路径脚本,我如何将当前目录更改为脚本文件所在的相同目录?


当前回答

在Bash中,你应该像这样得到你需要的东西:

#!/usr/bin/env bash

BASEDIR=$(dirname "$0")
echo "$BASEDIR"

其他回答

So many answers, all plausible, each with pro's and con's & slightly differeing objectives (which should probably be stated for each). Here's another solution that meets a primary objective of both being clear and working across all systems, on all bash (no assumptions about bash versions, or readlink or pwd options), and reasonably does what you'd expect to happen (eg, resolving symlinks is an interesting problem, but isn't usually what you actually want), handle edge cases like spaces in paths, etc., ignores any errors and uses a sane default if there are any issues.

每个组件都存储在一个单独的变量中,您可以单独使用:

# script path, filename, directory
PROG_PATH=${BASH_SOURCE[0]}      # this script's name
PROG_NAME=${PROG_PATH##*/}       # basename of script (strip path)
PROG_DIR="$(cd "$(dirname "${PROG_PATH:-$PWD}")" 2>/dev/null 1>&2 && pwd)"

在Bash中,你应该像这样得到你需要的东西:

#!/usr/bin/env bash

BASEDIR=$(dirname "$0")
echo "$BASEDIR"

这一行代码告诉shell脚本在哪里,与您是否运行它或是否获取它无关。此外,它还会解析所涉及的任何符号链接,如果是这样的话:

dir=$(dirname $(test -L "$BASH_SOURCE" && readlink -f "$BASH_SOURCE" || echo "$BASH_SOURCE"))

顺便说一下,我认为您正在使用/bin/bash.

这应该能奏效:

echo `pwd`/`dirname $0`

它可能看起来很丑,这取决于它是如何被调用和cwd,但应该得到你需要去的地方(或者你可以调整字符串,如果你关心它的外观)。

最初的帖子包含了解决方案(忽略回复,他们没有添加任何有用的东西)。有趣的工作是由前面提到的unix命令readlink和选项-f完成的。当以绝对路径和相对路径调用脚本时,此方法有效。

对于bash, sh, ksh:

#!/bin/bash 
# Absolute path to this script, e.g. /home/user/bin/foo.sh
SCRIPT=$(readlink -f "$0")
# Absolute path this script is in, thus /home/user/bin
SCRIPTPATH=$(dirname "$SCRIPT")
echo $SCRIPTPATH

对于tcsh, csh:

#!/bin/tcsh
# Absolute path to this script, e.g. /home/user/bin/foo.csh
set SCRIPT=`readlink -f "$0"`
# Absolute path this script is in, thus /home/user/bin
set SCRIPTPATH=`dirname "$SCRIPT"`
echo $SCRIPTPATH

参见:https://stackoverflow.com/a/246128/59087