将 bash 脚本的每个命令的 stdout 和 stderr 的输出附加到文件
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Append output from both stdout and stderr of every command of a bash script to file
提问by Paolo
Here
这里
https://stackoverflow.com/a/876267/1579327
https://stackoverflow.com/a/876267/1579327
I learned how to do that for a single command cmdappending output to file.txt
我学会了如何为单个命令cmd将输出附加到file.txt
cmd >>file.txt 2>&1
But my script contains many statements and commands.
但是我的脚本包含许多语句和命令。
And I would like to avoid appending >>file.txt 2>&1to every line.
我想避免附加>>file.txt 2>&1到每一行。
Is there a directive to let me to do that by default for every subsequent command?
是否有指令让我默认为每个后续命令执行此操作？
Side note: I'm looking for a solution suitable also for MacOs X's bash
旁注：我正在寻找一种也适用于 MacOs X 的 bash 的解决方案
回答by anubhava
On top of your script you can use execlike this:
在您的脚本之上，您可以exec像这样使用：
#!/bin/bash
# append stdout/stderr to a file
exec >> file.log 2>&1
# script starts here
