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  1. or download this
    my $cmd = "ssh -qv $ssh_user\@$bkp_destination 'sed -i \"s#.*$hostname
+#$skey#g\" /tmp/test.txt'";
warn "Launching [[$cmd]]";
system($cmd) == 0
    or die "Couldn't launch ssh connection via [[$cmd]]: $? / $!";
  2. or download this
    my $cmd = qq(ssh -qv $ssh_user\@$bkp_destination 'sed -i "s#.*$hostnam
+e#$skey#g" /tmp/test.txt');