KSH redirect stdout and stderr to a file on Linux or Unix

In the Korn shell (ksh), you can redirect both standard output (stdout) and standard error (stderr) to a file using the following syntax:

In this example, “command” is the command you want to run, and “file.txt” is the name of the file to which the output will be redirected. The “2>&1” redirects standard error (stderr) to the same location as standard output (stdout), which is specified by the “>” symbol.

Here’s an example of using this syntax to redirect the output of the “ls” command to a file:

You can also append the output to an existing file using the following syntax:

In this example, the “>>” symbol appends the output to the end of the file, rather than overwriting the file.