10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Folks,
please advise , I have logs generated on unix machine at location /ops/opt/aaa/bvg.log , now sometimes there come exception in these logs also, so I want to write such a script such that it should continuously monitor these logs and whenever any exception comes that is it try to find... (3 Replies)
Discussion started by: tuntun27272727
3 Replies
2. AIX
Hi All,
Anyone have any shell script to capture the zombie process, as according to the support they need the real time zombie PID, they only provide the
kdb
(0) > p* |grep -i defunct
(0) > p * | grep <hex pid>
But this is doesn't seem easy to catch the zombie as it is not always... (1 Reply)
Discussion started by: ckwan
1 Replies
3. Shell Programming and Scripting
Hi all,
anybody can help me in this?
how to catch the output of the URL in scripting.
exmple:
if i give the URL:
https://www.unix.com/shell-programming-scripting/155750-use-sed.html#post302503291
then output should be in onefile newfile.txt
thanks in advance.. (6 Replies)
Discussion started by: rajesh_pola
6 Replies
4. Programming
can someone give me an example of try catch in C, everytime i do it under the main, i get some try undeclared error, and dont know how to fix it... (3 Replies)
Discussion started by: omega666
3 Replies
5. Programming
Hello,
I am programming some kind of shell in special distribution of Linux. My trouble comes with programming the sort function. It should work the same like in the standard shell. When you terminate input, there's need to put End Of Transmission character, which is CTRL+D. But I am not able to... (2 Replies)
Discussion started by: samciz
2 Replies
6. Shell Programming and Scripting
Hi all
Im trying to call a PL SQl block from a ksh file like this :
sqlplus -s $DB_USERID/$DB_PASSWD@$DB_NAME<<eof
whenever SQLERROR exit 1
var varError VARCHAR2(200);
exec ODAS_BATCH_JOBS_RETRIEVE.retrieve_user_info(:varError);
eof
If there is a error then varError will return a... (1 Reply)
Discussion started by: Sam123
1 Replies
7. UNIX for Dummies Questions & Answers
Hi everybody,
I'm new to linux world and I need your help!!
I'm using vi to create a .sh script that process files moving them from a directory to another and unzipping a file.
I need to catch errors while moving or unzipping files.
For move command, I do:
mv -f... (2 Replies)
Discussion started by: Laetitia
2 Replies
8. Shell Programming and Scripting
I just want to send files to remote machine via SFTP, my question is: how can I catch the exception when SFTP command error occur? for example: add a log when network interrupt on SFTP put(or failure on rename the remote file etc.).
the shell run on linux. (2 Replies)
Discussion started by: younggun
2 Replies
9. Shell Programming and Scripting
Hi All,
I have a shell script for ex-
#bin/ksh
sqlplus user/pass << EOF
select x from y;
EOF
my question is can I store the value of x in a variable in unix program so that i can user that value in shell script.....
additionally after catching the value i want to perform some... (4 Replies)
Discussion started by: rpraharaj
4 Replies
10. UNIX for Dummies Questions & Answers
Hi,
In my code, I am running rsync, if any error comes, I have to wirte the error to temp file and I want to send this temp file content to specified email address, I am getting starnge outpout, can you pls help to solve this?
My code is:
tempfile=error.`date '+%m%d%Y_%H%M%SGMT'`
rsync -az -e... (3 Replies)
Discussion started by: redlotus72
3 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)