Sourcing a file in a new tcsh shell and getting the aliases to work

Question

I would like to source a file in a new tcsh shell.

I can run:

#!/usr/bin/env tcsh
konsole --close -e tcsh -exec "ls -l;exec tcsh"

This will open a new konsole, list all files and keep the shell interactive.

However, when I try:

#!/usr/bin/env tcsh
konsole --close -e tcsh -exec "source /tmp/1234.sh;exec tcsh"

I get all the env variables but not the aliases.

For example: In /tmp/1234.sh: I have:

...
setenv MAYA "/maya/path";
alias may 'source /X/tools/binlinux/myscript.tcsh getDirectory ${MAYA} \!*';
...

Now in my new shell:

$env | grep 'MAYA'

will output the correct "MAYA" environment but:

$may

may: Command not found.

All the aliases don't work

If I execute:

$source /tmp/1234.sh

in the new shell, then all aliases will work fine.

Please note that I am unable to store data in any file such as .tchrc or change the format of the /tmp/1234.sh file.

How can I get the aliases to work in the new shell?

Answer 1

exec用新的替换当前的过程。 source命令在旧进程中运行，而新进程不继承其状态（环境变量除外）。

执行所需操作的最简单方法是设置环境变量，并更改tcshrc文件中该变量的行为。例如：

#!/bin/sh
export FOO=bar
konsole --close -e tcsh

然后在您的tcshrc中进行选择：

if ( $?FOO ) then
    setenv MAYA "/maya/path";
    alias may 'source /X/tools/binlinux/myscript.tcsh getDirectory ${MAYA} \!*';
endif

没有真正的方法告诉tcsh从另一个位置读取配置。我曾经为此发送过补丁，但被拒绝了。