How to Redirect the Standard Input, Output, and ErrorStreams?
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Answer Posted / manavalan
0 (zero) refers to the standard input & often abbreviated as stdin.
1 refers to standard output (stdout)
2 refers to standard error (stderr)
Redirecting Standard Error :
The 2 in 2> refers to stderr.
$ lsash /usr/bin 2> commands-error.txt
Redirecting both Standard Ouput & Standard Error.
Use 2>&1 Syntax to redirect standard error to the same location as standard output .
$ ls /usr2222/bin > command.txt 2>&1
Redirecting Both stderr & stdout at Once
$ ls /usr2222/bin &> command.txt
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