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linuxbashperlsshzfs

Why no output from qx(ssh ...)?

If I in Bash do

a=$(ssh 10.10.10.46 ifconfig)

then I see the output in $a, but if I in Perl do

my @a = qx(ssh 10.10.10.46 ifconfig);
print Dumper @a;

then I don't get the output. I have ssh keys, so no login required.

For now would I just like to get simple output, but later I want to pipe from the remote host to the local host all in bash. Will be used for ZFS replication.

Question

Why don't I see the output in Perl?

Solution

  • I was missing the last print. Thanks for the debug tips. Very useful!

    sub rrr {
   my $a = qx(ssh 10.10.10.46 ifconfig);
   return $a;
}

print rrr();