shell输出重定向

Shell Buffer Redirection

Under WSL, if I want to run xfce4, the terminal will give a lot of information.

The information is very useful when developing, or errors accured, but not neccessary when I using it as the other days.

I knew that the output can be redirect to files, but I didn't know what should I do if I don't want to keep it, so I went to find ways for redirecting the stdout and stderr to null.

Try command > /dev/null to redirect stdout. But it won't help on stderr.

Try command > /dev/null 2>&1 to redirect stdout and stderr. It said that "注意：0 是标准输入（STDIN），1 是标准输出（STDOUT），2 是标准错误输出（STDERR）。" on Runnob.

Knighthana @ XDU

2019/05/19

注释

原来我WSL历史命令里面最早的那条

1

startxfce4 > /dev/null 2>&1

今天编译Craft的时候还纳闷了半天当初咋想到的。

Knighthana

2021年3月24日 于西电