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在 bash 脚本中调用“script”命令并退出

tag-icon • tag-icon bash scripting command
在 bash 脚本中调用“script”命令并退出

我正在使用 Linux 的“脚本”命令http://www.linuxcommand.org/man_pages/script1.html在交互式 bash 脚本中记录所有输入和输出。

目前我必须调用script命令，然后运行我的 bash 脚本，然后exit。

我想在实际的 bash 脚本中运行script和exit命令。我该怎么做？

我已尝试过，script -a但是这对于交互式脚本不起作用。

任何帮助都将不胜感激。

答案1

“script” 分叉一个 shell（或用“-c”指定的命令），所以我认为你不能从你想要“编写脚本”的脚本中调用“script”。

以这个（令人讨厌的）交互式 shell 脚本（称为“fred”）为例：

#!/bin/bash

while read -p 'Pete and Repeat were on a boat. Pete jumped off. Who was left? ' WHO
do
        :
done

运行它并将交互“脚本化”到文件中：

[myles@marklar ~]$ script -c ~/fred fred.log
Script started, file is fred.log
Pete and Repeat were on a boat. Pete jumped off. Who was left? Repeat
Pete and Repeat were on a boat. Pete jumped off. Who was left? Repeat
Pete and Repeat were on a boat. Pete jumped off. Who was left? Repeat
Pete and Repeat were on a boat. Pete jumped off. Who was left? Script done, file is fred.log

日志文件包含：

[myles@marklar ~]$ cat fred.log
Script started on Mon 12 Nov 2012 11:44:41 PM EST
Pete and Repeat were on a boat. Pete jumped off. Who was left? Repeat
Pete and Repeat were on a boat. Pete jumped off. Who was left? Repeat
Pete and Repeat were on a boat. Pete jumped off. Who was left? Repeat
Pete and Repeat were on a boat. Pete jumped off. Who was left?
Script done on Mon 12 Nov 2012 11:44:51 PM EST

简而言之，据我所知，您必须使用“script”命令调用交互式 shell 脚本。

答案2

您可以使用以下结构轻松地将脚本的所有输出重定向到文件：

exec &> /your/script.log

此外，当您添加以下内容时，bash 允许您记录它执行的所有命令、它接收的所有输入以及它执行的所有扩展：

set -x

如果这是脚本的前两行，那么脚本执行的所有内容都将被记录下来。

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