`command 2>&1 > file` without the shell?

[kj]

If I wanted to execute an external (unix) command X such that X's
normal output went to some file, but any error messages from X were
saved to an array, I could, for example, do this:

my @err = `X 2>&1 > some_file`;

How could I achieve the same results without using the shell?

TIA!

kj

 

[Peter Makholm]

If I wanted to execute an external (unix) command X such that X's
normal output went to some file, but any error messages from X were
saved to an array, I could, for example, do this:

my @err = `X 2>&1 > some_file`;

How could I achieve the same results without using the shell?

You could use IPC::Open3 and then save the error messages youself.

//Makholm

 

[Ben Morrow]

If I wanted to execute an external (unix) command X such that X's
normal output went to some file, but any error messages from X were
saved to an array, I could, for example, do this:

my @err = `X 2>&1 > some_file`;

How could I achieve the same results without using the shell?

Use IPC::Run.

Ben