03-28-2007
SSH in batch mode and File-Handles in a loop
Hi all
I try to execute SSH commands on several hosts in a while-loop.
There seems to be a problem with file-handle, first cycle works correct but no other one will follow due to the while condition is false even that there are many more host entries (lines) in all_hosts.dat.
#!/usr/bin/ksh
exec 0<all_hosts.dat
while read line
do
echo "...executing on host :" $line
ssh $line 'ls -la /tmp' # execution aborts after the first cycle
###pwd | ssh $line 'ls -la /tmp' # continues for each entry of all_hosts.dat
done # <all_hosts.dat
#
Any clue?
Any pointer to explaining tutorials about file handles?
MTIA
Dave
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
From a program, I want to execute a UNIX elm command that will send multiple txt attachment files to an email address. I can do it for one attachment only ie. "elm -s"subject" emailaddress < attachment.txt"
1. The attachment is received in the body of the email and not as an attachment.
2. The... (1 Reply)
Discussion started by: anarvan
1 Replies
2. Shell Programming and Scripting
Hi,
how do we change user in a shell script- batch mode.
Thanks,
Rajesh (3 Replies)
Discussion started by: Rajesh Gohad
3 Replies
3. UNIX for Advanced & Expert Users
Hi,
I am trying to do sftp a file from one server to another solaris server. Both are sftp enabled. I have generated the rsa key in local server and did a ftped the public key to the remote server and added that in the authorization keys file.
Then i try to run the below command using a... (2 Replies)
Discussion started by: sivaemn
2 Replies
4. Shell Programming and Scripting
i have a batch file which should run every five min...for an hour
can any one help me out (1 Reply)
Discussion started by: aemunathan
1 Replies
5. Gentoo
well. the title says it all.
im runing top in batch mode like this
top -b -n1 > somefile
but the cpu usage info is not correct.
if i run top normally, the first second, i see the same wrong info, and then it corrects itself.
i found only one small mention of it on this forum. with this link... (7 Replies)
Discussion started by: broli
7 Replies
6. Shell Programming and Scripting
Hi how do I use vi to do change some strings in a shell script loop
1. Run ls first, for each file that contains the word salesreport*.txt, do the following
2. use vi to run the following ex command : "1,$s/1975/1945/ig, wq"
Please tell me how to do this in vi, not sed. Thank you. (5 Replies)
Discussion started by: grossgermany
5 Replies
7. HP-UX
Hello;
Is it possible to run glance over ssh in batch mode ??
Similar to running " top -f " command over ssh..
Need to get glance output for specific pids
Thnx very much (5 Replies)
Discussion started by: delphys
5 Replies
8. Shell Programming and Scripting
HI,
Need to ftp a bunch of files in a directory in batch mode. TRying to ftp a single file first with below code.
#!/bin/ksh
function ftp_files
{
ftp -n ${D2_SRVR} <<-EOF
quote user ${D2_UID}
quote pass ${D2_PWD}
cd ${D2_DIR}/${D2_NAME}
lcd ${D1_DIR}/${D1_NAME}/dml/
put file1
... (6 Replies)
Discussion started by: cvsanthosh
6 Replies
9. Shell Programming and Scripting
Hi,
I put the necessary tftp commands into a batch file and I can run tftp by
$ tftp < tftpbatchscript
in bash command line and then successfully exit.
Now, I want to put a line which does the same thing above. However, when I put this line into a bash script, the lines below this line... (1 Reply)
Discussion started by: yildiz.a
1 Replies
10. Windows & DOS: Issues & Discussions
I am trying to have the below batch file do following two things:
1. only allow the values YES,yes,Y,y, or NO,no,N,n
2. increment the counter %var1 only if answer to question 2 is "y" and not able to get the syntax correct. If %var1%=1 then I am trying to display function :end. Thank you :).... (0 Replies)
Discussion started by: cmccabe
0 Replies
LEARN ABOUT DEBIAN
courier::filter::logger::iohandle
Courier::Filter::Logger::IOHandle(3pm) User Contributed Perl Documentation Courier::Filter::Logger::IOHandle(3pm)
NAME
Courier::Filter::Logger::IOHandle - I/O handle logger for the Courier::Filter framework
SYNOPSIS
use Courier::Filter::Logger::IOHandle;
my $logger = Courier::Filter::Logger::IOHandle->new(
handle => $handle
);
# For use in an individual filter module:
my $module = Courier::Filter::Module::My->new(
...
logger => $logger,
...
);
# For use as a global Courier::Filter logger object:
my $filter = Courier::Filter->new(
...
logger => $logger,
...
);
DESCRIPTION
This class is an I/O handle logger class for use with Courier::Filter and its filter modules.
Constructor
The following constructor is provided:
new(%options): returns Courier::Filter::Logger::IOHandle
Creates a new logger that logs messages as lines to an I/O handle.
%options is a list of key/value pairs representing any of the following options:
handle
Required. The I/O handle or IO::Handle object to which log messages should be written.
timestamp
A boolean value controlling whether every log message line should be prefixed with a timestamp (in local time, in ISO format).
Defaults to false.
Instance methods
The following instance methods are provided:
log_error($text): throws Perl exceptions
Logs the error message given as $text (a string which may contain newlines). Prefixes each line with a timestamp if the "timestamp"
option has been set through the constructor.
log_rejected_message($message, $reason): throws Perl exceptions
Logs the Courier::Message given as $message as having been rejected due to $reason (a string which may contain newlines).
SEE ALSO
Courier::Filter::Logger, Courier::Filter::Overview.
For AVAILABILITY, SUPPORT, and LICENSE information, see Courier::Filter::Overview.
AUTHOR
Julian Mehnle <julian@mehnle.net>
perl v5.14.2 2011-12-27 Courier::Filter::Logger::IOHandle(3pm)