Hi All.,
1 ssssss C2052EX 15 Mar 30 19:01
1 aaaaa C2052EX 15 Apr 3 10:12
1 ccccc C2052EX 15 Apr 4 09:28
i have files arriving like above.
i am using the following to extract files arriving today ( say apr4)
todaydat=`date | cut -c5-10`
find... (1 Reply)
I have a script that (ideally) starts tcpdump, sleeps a given number of seconds, then kills it.
When I do this for 10 seconds or and hour, it works fine. When I try it for 10 hours (the length I actually want) it just doesn't die, and will actually stick around for days.
Relevant part of my... (1 Reply)
How do you user command completion in .sh or .ksh in AIX environment?
I know you can do it by hitting <esc><esc> in bash, but how do you do it in bourne or korn shell in AIX 5.3 environment?
Thanks in advance. (1 Reply)
I'm trying to create daemon processes with ksh as follows:
function start
{
# start script as co-process and pass an argument
./1.ksh $1 |&
# print pid
print $!
# move the file descriptors of the co-process to 4 and 5
exec 4>&p
exec 5<&p
# then close... (1 Reply)
Hey all, I need to launch a script from within 2 other scripts that can run independently of the two parent scripts... Im having a hard time doing this, if anyone knows how please let me know.
More detail.
ScriptA (bash), ScriptB (ksh), ScriptC (bash)
ScriptA, launches ScriptB
ScirptB,... (7 Replies)
Hello
I am trying to send an email when a .KSH script is run on an AIX Machine.
This email will only include a subject line that is made up of variables from within the script, and is as follows:
CURRENT_DATE=`date +%Y%m%d`
TIME=`date`
ADMIN="myname@domain.com"
date
block ()
{
... (4 Replies)
Hi all!
Im working on a simple script in KSH (just started) to check if a process its up or down, but im kind of lost with the following error.
Script:
#!/usr/bin/ksh
psup=$(ps -ef | grep sftp | egrep -v grep | wc -l)
if ($psup > 0);
then
echo "Process SFTP running"
else
... (6 Replies)
from command line in AIX:
bc
18+14
32
and ctrl D to exit.
i want to write shell script:
!#/bin/ksh
startdate=18
enddate=14
cd /tmp
bc
$startdate + $enddate
my goal is to tell me end date is 14 days from today.
With 58 posts, you have been a member long enough to use good... (2 Replies)
Hi
I'm trying to catch a particular process (XYZ) running using a ksh script. Like So..
VarPS=`ps -ef |grep XYZ |grep -v grep`
However this seems to find the process of the script itself - not the process 'XYZ'
Asked in Error - I found my own typo...
thanks anyway Skrynesaver (1 Reply)
Team,
I have multiple batchjobs running in VM, if I do ps -ef |grep java or tomcat I am getting multiple process list.
How do I get my exact tomcat process running and that is unique? via shell script? (4 Replies)
Discussion started by: Ghanshyam Ratho
4 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$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)