Linux I/O redirection and linuxo redirection

Linux I/O redirection and linuxo redirection
I/O redirection:


Linux:
>: Overwrite the output.
>>: Append output
Set-C: Disable overwrite redirection for existing files;
If you want to force override, use> |
Set + C: Disable the above functions

2>: redirect error output
2>: Redirection error output in append Mode

&>: Redirects standard output or error output to the same file.


<: Input redirection

MPs queue:
The output of command 1 is used as the input of command 2.
Ls-l | grep "nginx"
Command 1 | command 2 | command 3 |... | command n

Tee: reads data from standard input and outputs it to standard output and files.