Unix Subshel​​l从父bash继承命令历史记录 [英] Unix Subshell inheriting the command history from parent bash

问题描述

我编写了一系列python工具，它们产生了新的bash会话.我希望这些单独的子shell继承父级的命令历史记录.我已经尝试过:

I have written a series of python tools that spawn new bash sessions. I am want those individual subshells to inherit the command history of the parent. I have tried:

shopt -s histappend
PROMPT_COMMAND="history -an;$PROMPT_COMMAND"

.bash_profile中的

.但这并没有给我我所需要的.我已经看到了.我的工具使用:

in the .bash_profile. But it didn't give me what I need. I have seen this done. My tool uses:

os.system('bash')

产生一个子进程.

有什么想法吗?更好的方法?

Thoughts? better way?

推荐答案

取决于您的操作系统，.bash_profile只能由登录Shell执行，而.bashrc则用于非登录Shell.

Depending on your OS, .bash_profile may only be executed by login shells, while .bashrc is executed for non-login shells.

所以请尝试

shopt -s histappend
PROMPT_COMMAND="history -a; history -n"

在.bashrc中，而不是在.bash_profile中.

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