Re^4: shell to perl equivalent

this is how i ran the program... but i am not able to suceed...

#!/usr/bin/perl

sub paranthesis {

    my @paran = @_;

    system( 'scp', '/users/myuser/merc/rem_snew.pl',
        "$remoteuser\@$remoteserver:/users/$remoteuser/tmp/rem_snew2.p
+l" );

    my $result
        = `ssh $remoteuser\@$remoteserver perl /users/$remoteuser/tmp/
+rem_snew2.pl`;

    print "$result\n";
    system( 'ssh', "$remoteuser\@$remoteserver", 'rm',
        "/users/$remoteuser/tmp/rem_snew2.pl" );

}

paranthesis(@paran);
[download]

this is how i ran it...

perl filename.pl remoteuser remoteserver
[download]

this is the error i get

ssh: : Hostname and service name not provided or found
lost connection
usage: ssh [-1246AaCfgkMNnqsTtVvXxY] [-b bind_address] [-c cipher_spec
+]
           [-D port] [-e escape_char] [-F configfile]
           [-i identity_file] [-L [bind_address:]port:host:hostport]
           [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p 
+port]
           [-R [bind_address:]port:host:hostport] [-S ctl_path]
           [user@]hostname [command]

usage: ssh [-1246AaCfgkMNnqsTtVvXxY] [-b bind_address] [-c cipher_spec
+]
           [-D port] [-e escape_char] [-F configfile]
           [-i identity_file] [-L [bind_address:]port:host:hostport]
           [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p 
+port]
           [-R [bind_address:]port:host:hostport] [-S ctl_path]
           [user@]hostname [command]
[download]

thanks.

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Re^5: shell to perl equivalent by graff (Chancellor) on Feb 18, 2008 at 22:09 UTC
this is how i ran it... `perl filename.pl remoteuser remoteserver` [download] The problem with your script is that you never use the command line args, and nothing is ever assigned to the variables "$remoteuser" and "$remoteserver". Do it like this (assuming that "remoteuser" is an alphanumeric string, and "remoteserver" is alphanumerics with periods): #!/usr/bin/perl die "Usage: $0 remoteuser remoteserver\n" unless ( @ARGV == 2 and $ARGV[0] =~ /^\w+$/ and $ARGV[1] =~ /^\w+( +\.\w+)*$/ ); paranthesis( @ARGV ); # This is important sub paranthesis { my ( $remoteuser, $remoteserver ) = @_; # equally important system( 'scp', '/users/myuser/merc/rem_snew.pl', "$remoteuser\@$remoteserver:/users/$remoteuser/tmp/rem_snew2.p +l" ); my $result = `ssh $remoteuser\@$remoteserver perl /users/$remoteuser/tmp/ +rem_snew2.pl`; print "$result\n"; system( 'ssh', "$remoteuser\@$remoteserver", 'rm', "/users/$remoteuser/tmp/rem_snew2.pl" ); } [download] Also, you might want to try doing these other two commands first, before running the perl script: `ping -c 2 remoteserver ssh remoteuser@remoteserver ls -d tmp` [download] If the ping fails, it means you are using a non-existent host name for "remoteserver"; if the ping succeeds but the ssh fails, it's either because your "remoteuser" name does not match an existing user name on that system, or because the home directory for that user account does not contain a subdirectory called "tmp".	[reply] [d/l] [select]
Re^6: shell to perl equivalent by mercuryshipz (Acolyte) on Feb 18, 2008 at 22:31 UTC
thanks a lot graff.... absloutely perfect...	[reply]
Re^5: shell to perl equivalent by shmem (Chancellor) on Feb 18, 2008 at 21:55 UTC
The arguments you pass on the command line are in the array @ARGV. Change the call of your paranthesis() sub to `paranthesis(@ARGV);` [download] You should begin reading some perl manual pages, e.g. perl, perlsyn, perlrun... --shmem _($_=" "x(1<<5)."?\n".q·/)Oo. G°\ / /\_¯/(q / ---------------------------- \__(m.====·.(_("always off the crowd"))."· ");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}	[reply] [d/l]