临时更改 bash 中的当前工作目录以运行命令
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Temporarily change current working directory in bash to run a command
提问by Ethan Zhang
I know I can use cdcommand to change my working directory in bash.
我知道我可以使用cd命令在 bash 中更改我的工作目录。
But if I do this command:
但是如果我执行这个命令：
cd SOME_PATH && run_some_command
Then the working directory will be changed permanently. Is there some way to change the working directory just temporarily like this?
然后工作目录将被永久更改。有没有办法像这样临时更改工作目录？
PWD=SOME_PATH run_some_command
回答by codaddict
You can run the cdand the executable in a subshell by enclosing the command line in a pair of parentheses:
cd通过将命令行括在一对括号中，您可以在子 shell 中运行和 可执行文件：
(cd SOME_PATH && exec_some_command)
Demo:
演示：
$ pwd
/home/abhijit
$ (cd /tmp && pwd) # directory changed in the subshell
/tmp
$ pwd # parent shell's pwd is still the same
/home/abhijit
回答by pizza
bash has a builtin
bash 有一个内置
pushd SOME_PATH
run_stuff
...
...
popd
回答by yazu
Something like this should work:
这样的事情应该工作：
sh -c 'cd /tmp && exec pwd'
