blocks|key|1340415|text|您需要将脚本转换为shell函数：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340416|#!/bin/bash
#
#+this+script+should+not+be+run+directly,
#+instead+you+need+to+source+it+from+your+.bashrc,
#+by+adding+this+line:
#+++.+~/bin/myprog.sh
#

function+myprog()+{
++A=$1
++B=$2
++echo+"aaa+${A}+bbb+${B}+ccc"
++cd+/proc
}|code-block|syntax|javascript|1340417|原因是每个进程都有自己的当前目录，当您从shell执行程序时，它将在新进程中运行。标准的"cd“、"pushd”和"popd“是内置在shell解释器中的，因此它们会影响shell进程。|1340418|通过使您的程序成为shell函数，您可以添加自己的进程内命令，然后任何目录更改都会反映在shell进程中。|1340419|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

You need to convert your script to a shell function:

<pre><code>#!/bin/bash
#
# this script should not be run directly,
# instead you need to source it from your .bashrc,
# by adding this line:
# . ~/bin/myprog.sh
#

function myprog() {
 A=$1
 B=$2
 echo "aaa ${A} bbb ${B} ccc"
 cd /proc
}
</code></pre>

The reason is that each process has its own current directory, and when you execute a program from the shell it is run in a new process. The standard "cd", "pushd" and "popd" are builtin to the shell interpreter so that they affect the shell process.

By making your program a shell function, you are adding your own in-process command and then any directory change gets reflected in the shell process.

blocks|key|1555933|text|当您启动脚本时，将创建一个仅继承您的环境的新进程。当它结束的时候，它就结束了。您当前的环境保持不变。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1555934|相反，您可以像这样启动脚本：|1555935|.+myscript.sh|code-block|syntax|javascript|1555936|.将在当前环境中评估脚本，因此可能会对其进行更改|offset|length|style|CODE|1555937|entityMap^0|0|0|0|0|1|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

When you start your script, a new process is created that only inherits your environment. When it ends, it ends. Your current environment stays as it is.

Instead, you can start your script like this:

<pre><code>. myscript.sh
</code></pre>

The <code>.</code> will evaluate the script in the current environment, so it might be altered

blocks|key|1340518|text|将以上几项放在一起，您可以创建一个别名|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340519|alias+your_cmd=".+your_cmd"|code-block|syntax|javascript|1340520|如果你不想写“前导”。每次您想要将脚本放到shell环境中时，或者如果您只是不想记住为了让脚本正确工作而必须做的事情。|1340521|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Putting the above together, you can make an alias

<pre><code>alias your_cmd=". your_cmd"
</code></pre>

if you don't want to write the leading "." each time
you want to source your script to the shell environment,
or if you simply don't want to remember that must be done
for the script to work correctly.

blocks|key|1340465|text|如果您正在使用bash，您可以尝试使用别名：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340466|在.bashrc文件中添加以下行：|1340467|alias+p='cd+/home/serdar/my_new_folder/path/'|code-block|syntax|javascript|1340468|当您在命令行中输入"p“时，它将更改目录。|1340469|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you are using bash you can try alias:

into the .bashrc file add this line:

<pre><code>alias p='cd /home/serdar/my_new_folder/path/'
</code></pre>

when you write "p" on the command line, it will change the directory.

blocks|key|1556163|text|如果您运行bash脚本，那么它将在其当前环境或其子环境上运行，而不是在父环境上运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1556164|如果目标是运行命令:+goto.sh+/home/test，那么在/home/test中交互工作，一种方法是在脚本中运行一个bash交互子subshell：|1556165|#!/bin/bash
cd+$1
exec+bash|code-block|syntax|javascript|1556166|这样，您将一直在/home/test中，直到您退出(退出或Ctrl%2BC+)此shell。|1556167|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|O|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you run a bash script then it will operates on its current environment or on those of its children, never on the parent.

If goal is to run your command :
goto.sh /home/test
Then work interactively in /home/test one way is to run a bash interactive subshell within your script :

<pre><code>#!/bin/bash
cd $1
exec bash
</code></pre>

This way you will be in /home/test until you exit ( exit or Ctrl+C ) of this shell.

blocks|key|1556200|text|我已经编写了一个更改目录的脚本。看一下：https://github.com/ygpark/dj|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1556201|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/ygpark/dj^0|K|S|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I've made a script to change directory. take a look: <a href="https://github.com/ygpark/dj" rel="nofollow">https://github.com/ygpark/dj</a>

blocks|key|1340778|text|在您的shellscript中添加下面的cd行：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340779|exec+$SHELL|code-block|syntax|javascript|1340780|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Add below cd line in your shellscript this:

<pre><code>exec $SHELL
</code></pre>

blocks|key|1340818|text|这是上述答案的简化汇编。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1340819|在脚本中创建外壳文件shellfile.sh在函数中更改目录|offset|length|style|CODE|1340820|#!/bin/bash

cd+folder1/folder2/|code-block|syntax|javascript|1340821|现在先运行脚本，然后再运行.。|1340822|.使用当前线程/会话来执行脚本。|1340823|.+shellfile.sh|1340824|entityMap^0|0|A|C|0|0|D|1|0|0|1|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|Z|8|@$D|10|E|11|F|G]]|9|@]|A|$]]|$1|O|3|P|5|6|7|12|8|@$D|13|E|14|F|G]]|9|@]|A|$]]|$1|Q|3|R|5|J|7|15|8|@]|9|@]|A|$K|L]]|$1|S|3|-4|5|6|7|16|8|@]|9|@]|A|$]]]|T|$]]

This is a simplified compilation of above answer. 
Create a shell file <code>shellfile.sh</code>
In the script change your directory inside a function
<pre class="lang-sh prettyprint-override"><code>#!/bin/bash

cd folder1/folder2/
</code></pre>
Now run the script with <code>.</code> before it. 
<code>.</code> uses the current thread/session to execute the script.
<pre class="lang-sh prettyprint-override"><code>. shellfile.sh
</code></pre>

blocks|key|1556254|text|我喜欢为不同的项目做同样的事情，而不需要启动新的shell。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1556255|在您的案例中：|1556256|cd+/home/artemb|code-block|syntax|javascript|1556257|将the_script另存为：|1556258|echo+cd+/home/artemb|1556259|然后用以下命令启动它：|1556260|\`./the_script\`|1556261|然后您可以使用相同的shell访问该目录。|1556262|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|W|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|X|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

I like to do the same thing for different projects without firing up a new shell. 

In your case:

<pre><code>cd /home/artemb
</code></pre>

Save the_script as:

<pre><code>echo cd /home/artemb
</code></pre>

Then fire it up with:

<pre><code>\`./the_script\`
</code></pre>

Then you get to the directory using the same shell.

blocks|key|1340718|text|我还创建了一个名为goat的实用程序，您可以使用它来简化导航。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1340719|你可以在GitHub上查看源代码。|1340720|从v2.3.1开始，usage+overview如下所示：|1340721|#+Create+a+link+(h4xdir)+to+a+directory:
goat+h4xdir+~/Documents/dev

#+Follow+a+link+to+change+a+directory:
cd+h4xdir

#+Follow+a+link+(and+don't+stop+there!):
cd+h4xdir/awesome-project

#+Go+up+the+filesystem+tree+with+'...'+(same+as+`cd+../../`):
cd+...

#+List+all+your+links:
goat+list

#+Delete+a+link+(or+more):
goat+delete+h4xdir+lojban

#+Delete+all+the+links+which+point+to+directories+with+the+given+prefix:
goat+deleteprefix+$HOME/Documents

#+Delete+all+saved+links:
goat+nuke

#+Delete+broken+links:
goat+fix|code-block|syntax|javascript|1340722|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/0mp/goat|1|2|https://github.com/0mp/goat/releases/tag/v2.3.1|3|https://github.com/0mp/goat/tree/v2.3.1#usage-overview^0|9|4|0|0|4|6|1|0|1|6|2|A|E|3|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@$A|10|B|11|1|12]]|C|$]]|$1|D|3|E|5|6|7|13|8|@]|9|@$A|14|B|15|1|16]]|C|$]]|$1|F|3|G|5|6|7|17|8|@]|9|@$A|18|B|19|1|1A]|$A|1B|B|1C|1|1D]]|C|$]]|$1|H|3|I|5|J|7|1E|8|@]|9|@]|C|$K|L]]|$1|M|3|-4|5|6|7|1F|8|@]|9|@]|C|$]]]|N|$O|$5|P|Q|R|C|$S|T]]|U|$5|P|Q|R|C|$S|T]]|V|$5|P|Q|R|C|$S|W]]|X|$5|P|Q|R|C|$S|Y]]]]

I've also created a utility called <a href="https://github.com/0mp/goat" rel="nofollow noreferrer">goat</a> that you can use for easier navigation.

You can view the source code on <a href="https://github.com/0mp/goat" rel="nofollow noreferrer">GitHub</a>.

As of <a href="https://github.com/0mp/goat/releases/tag/v2.3.1" rel="nofollow noreferrer">v2.3.1</a> the <a href="https://github.com/0mp/goat/tree/v2.3.1#usage-overview" rel="nofollow noreferrer">usage overview</a> looks like this:

<pre><code># Create a link (h4xdir) to a directory:
goat h4xdir ~/Documents/dev

# Follow a link to change a directory:
cd h4xdir

# Follow a link (and don't stop there!):
cd h4xdir/awesome-project

# Go up the filesystem tree with '...' (same as `cd ../../`):
cd ...

# List all your links:
goat list

# Delete a link (or more):
goat delete h4xdir lojban

# Delete all the links which point to directories with the given prefix:
goat deleteprefix $HOME/Documents

# Delete all saved links:
goat nuke

# Delete broken links:
goat fix
</code></pre>

Is it possible to change current directory from a script?

I want to create a utility for directory navigation in Bash. I have created a test script that looks like the following:

<pre><code>#!/bin/bash
cd /home/artemb
</code></pre>

When I execute the script from the Bash shell the current directory doesn't change. Is it possible at all to change the current shell directory from a script?

Change the current directory from a Bash script

解释器

可以从脚本更改当前目录吗？我想在Bash中创建一个用于目录导航的实用程序。我已经创建了一个测试脚本，如下所示：#!/bin/bashcd /home/artemb当我从Bash shell执行脚本时，当前目录没有改变。是否可以通过脚本更改当前的shell目录？

问从Bash脚本更改当前目录
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回答 10

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