The third redirect, summary. Up to now on the table.
| Operator (symbol) | meaning |
|---|---|
| > | Specify the output destination of standard output |
| >> | Specify the output destination of the standard output and add it to the standard input output destination |
| << (End character) | If you enter characters later, the entry will end automatically. |
| >& dev/null | Can't call |
I wonder if all this can be unified to the left, it looks too bad
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