Plink from within root

delos · November 17, 2016, 5:34pm

Dear colleagues

For my following question I tried to find a solution in other forums but didn’t get an answer so I try here because it has at least something to do with root.

From within my root macro I need to run a command on another linux machine. Therefore, I use “plink.exe” on my windows platform (it is part of putty) to exectue the command

system("plink delos@remote command something")

In detail the command looks like this:

system("plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -start "12/10/2016 00:00:00" -end "19/10/2016 00:00:00" -gnuplot -precision 9 /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2");

Somehow, plink cannot handle arguments especially when they contain quotation marks. The command “plink delos@host ArchiveExport” works without any arguments.
I tried to use (back)/slashes and so on but nothing is accepted.
Does any one of you have a clue what I could do?

best regards,
delos

ferhue · November 17, 2016, 7:34pm

stackoverflow.com/questions/3493 … nk-windows

Try first from the command prompt. Once it works, write it in your C++ script, you may need to add extra backslashes for each \ and ".

delos · November 18, 2016, 9:00am

Dear ferhue

Sorry, I forgot to mention but of course I tried from the command prompt in windows first. Also there arguments don’t seem to be handed over.
It’s true, that it is more a windows or plink problem and not a root issue. But maybe someone finds a solution here.

Cheers,
delos

ferhue · November 18, 2016, 2:20pm

Try to go step by step and check at which point is failing:

From the command prompt:

plink delos@host /usr/local/bin/ArchiveExport
plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat
plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -gnuplot
plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -gnuplot -precision 9
plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -gnuplot -precision 9 /gfa/archiver-data/archive_ZHE_MT/index
plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -gnuplot -precision 9 /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:27
plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -gnuplot -precision 9 /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:27 -start '12/10/2016 00:00:00' -end '19/10/2016 00:00:00'

See also:
stackoverflow.com/questions/5772 … ble-quotes
groups.google.com/forum/#!topic … 0lGnbLIZxo

delos · November 21, 2016, 1:06pm

Hi

Actually, it works now from the windows command prompt. When I try a system call with system(“plink”) from within root it complains that ArchiveExport cannot be found.

Cheers,
delos

ferhue · November 21, 2016, 1:54pm

Could you be more explicit? What command did work for you from the command prompt?
How do you translate this command to a ROOT script? Do you add backslashes?
What is the exact error output?

bellenot · November 21, 2016, 4:24pm

Hi,

Try:

system("plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -start \\\"12/10/2016 00:00:00\\\" -end \\\"19/10/2016 00:00:00\\\" -gnuplot -precision 9 /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2");

For example, those two commands (remote processing a root macro):

root [2] gSystem->Exec("plink bellenot@bbcc7x64 source /build/bellenot/bin/root/master/bin/thisroot.csh; root -l -q 'rootdev/get_fs_info.C(\\\"/build/bellenot/rootdev\\\")'");
Processing rootdev/get_fs_info.C("/build/bellenot/rootdev")...
infos for /build/bellenot/rootdev id: 1481003842 bsize: 4096 blocks: 20968547 bfree: 11724607
root [3] system("plink bellenot@bbcc7x64 source /build/bellenot/bin/root/master/bin/thisroot.csh; root -l -q 'rootdev/get_fs_info.C(\\\"/build/bellenot/rootdev\\\")'");
Processing rootdev/get_fs_info.C("/build/bellenot/rootdev")...
infos for /build/bellenot/rootdev id: 1481003842 bsize: 4096 blocks: 20968547 bfree: 11724616
root [4]

Cheers, Bertrand.

delos · November 22, 2016, 12:25pm

Hi

I tried system("plink delos@host /usr/local/bin/ArchiveExport -o tmp.dat -start \\\"12/10/2016 00:00:00\\\" -end \\\"19/10/2016 00:00:00\\\" -gnuplot -precision 9 /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2");
but windows complains Der Befehl "ArchiveExport" ist entweder falsch geschrieben oder konnte nicht gefunden werden. The command is either incorrect or could not be found.
I dont understand why windows regards “ArchiveExport” as a command but not an argument.

Cheers,
delos

bellenot · November 22, 2016, 12:55pm

Hi,

Could you first try without argument? Something like:

system("plink delos@host /usr/local/bin/ArchiveExport");To see the output?

And try also:

system("plink delos@host ls -l /usr/local/bin/ArchiveExport");

To see the ArchiveExport attributes

Cheers, Bertrand.

delos · November 22, 2016, 1:08pm

Hi

First one gives me:

[code]USAGE: ArchiveExport [Options] {channel}

Options:
-verbose Verbose mode[/code]
So it complains it needs options.

Second on leads to:

Der Befehl "ArchiveExport" ist entweder falsch geschrieben oder
konnte nicht gefunden werden.

Strange,
delos

bellenot · November 22, 2016, 1:51pm

Weird, it works for me with root.exe:

root [0] system(“plink bellenot@bbcc7x64 ls -l /build/bellenot/bin/root/master/bin/root.exe”);
-rwxr-xr-x. 1 bellenot sf 66712 Nov 15 09:06 /build/bellenot/bin/root/master/bin/root.exe
root [1]

So I’m afraid I can’t really help here…

Cheers, Bertrand.

ferhue · November 22, 2016, 2:02pm

Maybe you could try:

system("plink delos@host \"ls -l /usr/local/bin/ArchiveExport\"");

delos · November 22, 2016, 2:26pm

I now tried this:

system("plink delos@host \"/usr/local/bin/ArchiveExport -o test.dat -start \"12/10/2016 00:00:00\" -end \"19/10/2016 00:00:00\" /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2  \"");

Now it complains it cannot open the file ‘00:00:00’.

I’ll try… I guess it’s all these quotation marks needed.

Cheers,
delos

ferhue · November 22, 2016, 2:29pm

system("plink delos@host \"/usr/local/bin/ArchiveExport -o test.dat -start \\\"12/10/2016 00:00:00\\\" -end \\\"19/10/2016 00:00:00\\\" /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2  \"");

delos · November 22, 2016, 4:13pm

Hi

This

system("plink acsop@hipalc \"/usr/local/bin/ArchiveExport -o test.dat -start '10/10/2016 00:00:00' -end '10/17/2016 00:00:00' /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2  \"");

works from the root [0] command prompt.
In a macro I again get “the command ArchiveExport cannot be found”.
Weird.
So it is try and error with quotation marks…

Cheers,
delos

ferhue · November 22, 2016, 4:21pm

Does this work from the macro?

system("plink acsop@hipalc \\\"/usr/local/bin/ArchiveExport -o test.dat -start '10/10/2016 00:00:00' -end '10/17/2016 00:00:00' /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2  \\\"");

delos · November 23, 2016, 8:15am

No, same error: command ArchiveExport cannot be found.

ferhue · November 23, 2016, 8:56am

Last try:

gROOT->ProcessLine("system(\"plink acsop@hipalc \\\"/usr/local/bin/ArchiveExport -o test.dat -start '10/10/2016 00:00:00' -end '10/17/2016 00:00:00' /gfa/archiver-data/archive_ZHE_MT/index MHC1:IST:2  \\\"\");");

delos · November 23, 2016, 10:47am

Sorry, still doesn’t work. I don’t understand why there is a difference between executing plink from the root [0] command line and executing the same in a macro.
I guess I will create a script with the required information, copy it to the remote host and execute it there.
Thanks to all of you for your persistent help!

Cheers,
delos