Shell redirection 1> 2> &>

Source: Internet
Author: User

0 indicates standard input
1 indicates standard output
2 indicates standard error output
> default to standard output redirect, same as 1>
2>&1 means redirecting the standard error output to the standard output.
&>file means to redirect both the standard output and the standard error output to file

Example (del.sh)

Tdate

Perform

SH del.sh >right 2>&1 &>all

The output will output the date execution result (correct) to the Right;t execution result (error) redirect Right, all outputs redirected to all

Shell redirection 1> 2> &>

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