What is 2>&1 mean in Linux shell
In this post we will give you information about What is 2>&1 mean in Linux shell. Hear we will give you detail about What is 2>&1 mean in Linux shellAnd how to use it also give you demo for it if it is necessary.
we are going to learn about what is meaning of 2>&1 in Linux shell.
Consider we have a example command like this.
curl http://www.google.com > /dev/null 2>&1
What does 2>&1 in the above command?
2 is a standard error (stderr) file descriptor.
> is used for redirection.
& indicates follow a file descriptor, not a file name.
1 is a standard output (stdout) file descriptor.
At final this 2>&1 command is used to redirect standard error to the standard output, it means to redirect the standard error to the same location where standard output is redirected.
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