Linux bash 导出命令
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bash export command
提问by JohnJ
I am encountering a strange problem with my 64bit Ubuntu - on the export command.
我的 64 位 Ubuntu 遇到了一个奇怪的问题 - 在 export 命令上。
Basically, I have got a VM installation on Ubuntu on my Win7, and I am trying to pass commands from my windows to my VM installation using a custom (given by client) software.
基本上，我在 Win7 上的 Ubuntu 上安装了 VM，我正在尝试使用自定义（由客户端提供）软件将命令从我的 Windows 传递到我的 VM 安装。
So, on my VM, when I do:
所以，在我的虚拟机上，当我这样做时：
export foo=bar
echo $foo
everything works as expected.
一切都按预期工作。
However, when I do the same through the custom software (which basically passes the linux command as a string to the bash shell), I get:
但是，当我通过自定义软件（基本上将 linux 命令作为字符串传递给 bash shell）执行相同操作时，我得到：
export: command not found
I tried looking at the shell (using the custom software), using:
我尝试查看外壳（使用自定义软件），使用：
echo $SHELL>shell.txt
and I get /bin/bash which is expected and I still get the export: command not found error.
我得到了预期的 /bin/bash 并且我仍然得到 export: command not found 错误。
I was wondering if anyone had seen this error before?
我想知道是否有人以前见过这个错误？
采纳答案by ArjunShankar
exportis a Bash builtin, echois an executable in your $PATH. So exportis interpreted by Bash as is, without spawning a new process.
export是 Bash 内置程序，echo是您的$PATH. 所以export被 Bash 按原样解释，没有产生新的进程。
You need to get Bash to interpret your command, which you can pass as a string with the -coption:
您需要让 Bash 来解释您的命令，您可以使用以下-c选项将其作为字符串传递：
bash -c "export foo=bar; echo $foo"
ALSO:
还：
Each invocation of bash -cstarts with a fresh environment. So something like:
每次调用都bash -c从一个全新的环境开始。所以像：
bash -c "export foo=bar"
bash -c "echo $foo"
will not work. The second invocation does not remember foo.
不管用。第二次调用不记得了foo。
Instead, you need to chain commands separated by ;in a single invocation of bash -c:
相反，您需要;在单个调用中链接由 分隔的命令bash -c：
bash -c "export foo=bar; echo $foo"
回答by Vincent L.
Are you certain that the software (and not yourself, since your test actually only shows the shell used as default for your user) uses /bin/bash ?
您确定该软件（而不是您自己，因为您的测试实际上仅显示用作用户默认值的 shell）使用 /bin/bash 吗？
回答by theglauber
Probably because it's trying to execute "export" as an external command, and it's a shell internal.
可能是因为它试图将“导出”作为外部命令执行，并且它是内部的 shell。
回答by bukzor
SHELLis an environment variable, and so it's not the most reliable for what you're trying to figure out. If your tool is using a shell which doesn't set it, it will retain its old value.
SHELL是一个环境变量，因此对于您要弄清楚的内容来说，它并不是最可靠的。如果您的工具使用的外壳没有设置它，它将保留其旧值。
Use psto figure out what's really going on.
使用ps搞清楚到底发生了什么上。
回答by lwpro2
change from bash to sh scripting, make my script work.
从 bash 更改为 sh 脚本，使我的脚本工作。
!/bin/sh
!/bin/sh
回答by karuna
If you are using C shell -
如果您使用的是 C shell -
setenv PATH $PATH":/home/tmp"
回答by Hasee Amarathunga
Follow These step to Remove " bash export command not found." Terminal open error fix>>>>>>
按照这些步骤删除“找不到 bash 导出命令”。终端打开错误修复>>>>>>
open terminal and type : root@someone:~# nano ~/.bashrc
打开终端并输入：root@someone:~# nano ~/.bashrc
After Loading nano: remove the all 'export PATH = ...........................' lines and press ctrl+o to save file and press ctrl+e to exit.
加载 nano 后：删除所有 'export PATH = .........................' 行并按 ctrl+o 保存文件并按ctrl+e 退出。
Now the Terminal opening error will be fixed.........
现在终端打开错误将被修复.........
回答by anand kakaraddi
if u cant use " export " cmd
then Just use:
如果你不能使用“export”cmd，
那么只需使用：
setenv path /dir
like this
像这样
setenv ORACLE_HOME /data/u01/apps/oracle/11.2.0.3.0
