10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello,
I currently have very little experience with Shell scripting and trying to create a script for the purpose of collecting the size of a couple sizes on 4 different Hosts. The Idea is to collected the information from the files in which the script is kicked off on, store the values into... (17 Replies)
Discussion started by: Abstract3000
17 Replies
2. Shell Programming and Scripting
HI
I have the following requirement
I have a script a.sh which will deploy files in multiple servers .The argument for the a.sh is abc.gz host1.conf
where abc.gz is a zip file and one.conf will contain all the database connection string .
Now I have to write a b.sh which will... (7 Replies)
Discussion started by: harry00514
7 Replies
3. Shell Programming and Scripting
Hi There,
I have a file contaning some 100 servers names one by one the file called redhat_servers.txt
I want to prepare a script where it should give me the host name and kernal version.
I wrote like this,
#!/bin/bash
while read line
do
ssh $line "uname -nr"
done <... (3 Replies)
Discussion started by: kumar85shiv
3 Replies
4. Shell Programming and Scripting
Hi @ all
I have the following scenario:
As Admin of a cupple of servers I tried to write the following script to figure out, if the machine is up and available and if some directory´s were available. But my script is having some probs, while running. Maybe some of you have a better way to... (9 Replies)
Discussion started by: muogli
9 Replies
5. UNIX for Dummies Questions & Answers
Hi,
I am running a script that connets to a list of servers with SSH and runs a command but I have some servers that are asking for password (authorized keys is not configured properly).
Is there any way to do so that if I get a prompt for password just skip that entry?
my script:
... (1 Reply)
Discussion started by: galuzan
1 Replies
6. Linux
I'm having a problem here and I was wondering if anyone could help me? I'm putting together a password script. First off, I don't have root access. I have sudo access. Lets say the User ID is Trevor1, the password is H!rry23! and the server name is Linux1234
This is how the script begins
... (5 Replies)
Discussion started by: wdog17
5 Replies
7. Shell Programming and Scripting
I am trying to put an awk command in ssh, for example:
ERRCOUNT=`ssh -n $HOST "ps -ef | grep .job | grep -v grep | grep -v alert_jobs_still_running |wc -l"`
From korn shell prompt this works:
awk '/^Jul 12 16/ {print $0}' /u01/app/oracle/jobs/adhoc/test.dat | wc -l
My data file:... (3 Replies)
Discussion started by: bradyd
3 Replies
8. Shell Programming and Scripting
Hi,
I'm trying to write a script that will ssh into a number of boxes and run 'top' and 'ps', then output the results to a file with the hostname. The script only seems to run top or ps on the local machine though. Any help would be apperciated
#ssh into box
while read box
do ssh -n $box ... (3 Replies)
Discussion started by: Brimak86
3 Replies
9. Shell Programming and Scripting
Hello - I've used 'expect' in FTP scripts before without any problems, but am unsure as to how I would script a tar over ssh session?
I need to send password for authentication to the remote Suse machine.
:confused:
Any assistance provided would be GREATLY appreciated. (6 Replies)
Discussion started by: rm -r *
6 Replies
10. Shell Programming and Scripting
I know the root login/password for a machines, and I want to automate some commands like this from each:
ssh root@remoteHost1 "tail /var/log/messages"
ssh root@remoteHost2 "tail /var/log/messages"
ssh root@remoteHost3 "tail /var/log/messages"
ssh root@remoteHost4 "tail /var/log/messages"
ssh... (2 Replies)
Discussion started by: jjinno
2 Replies
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)
NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS
--debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)