Can some one point this UNIX newbie to a web site or directions on the steps needed to break a mirror in HP-UNIX to change a bad hard drive. (4 Replies)
Hey all
I have two scripts, one script containing the guts of my code.
The other simply loops through a list, calling the other script on each iteration.
Problem is when I add the line
`/usr/bin/rsh -l root $HOSTNAME ""`
to my main script, the loop never seems to exectute any more... (1 Reply)
Hi ,
I am running this script ( pasting only error code ) to generate some ddl definition for tables . But what I want is to break out of the db2look part when the base_table is not like DIM_$TN or FACT_$TN . After this it should come back to while loop to read the next TN . I read the other... (3 Replies)
Hi friends,
I have 2 scripts. 1) Master_Script.sh and 2) Sub_script.sh
We run Master_script.sh manually where as sub_script.sh keeps generating output in every 2 minutes (through crontab). The output generated by sub_script.sh can be 0 or 1.
As I told you, sub-script.sh keeps generating o/p... (7 Replies)
Hello Friends,
Im trying to write a script to invoke nagios. In order to do this I grep some words that comes from output of some backup scripts. When there is "End-of-tape detected" in directed output logs it should give alarm. First I would like to know if there is any better way to write... (5 Replies)
Hi,
I have a file that looks like this - lets call it fileA
>hhm2
IIIIIIIIILLLLLLLMMMMMMMMMNNNNNNNNNNGGGGGGHHHHHHHH
>hhm4
OOOOOKKKKKKKKMMMMMHHHHHLLLLLLLLWWWWWWWWWWW
>hhm9
OOOOOOOIIIIIIIIIKKKKKKKKKMMMMMHHHHHHHHHHHLLLLLLLLLL
So the file is pretty straight forward. The name is indicated... (2 Replies)
Dear Friends,
Here I need your guidance once again.
I have for loop which check all files in a folder for a particular string. If the string is found in a file it returns value other than 0 else returns 0 value in variable t2.
At times the string which we are looking for is in first file... (1 Reply)
Here's my code -
for File in "${Files}"; do
uuencode "${File}" "$(basename ${File} 2>&-)" 2>&-;
done | mailx -s "subject" "a@b.c"
Now I want to know if there a way to *not* send an email if the "Files" variables turns out to be blank. Any suggestions?
Also, just to clarify, I... (4 Replies)
Hi ,
I am trying to read a list of hosts from a config file and trying to get file list from that host. For this I have used one while loop.
cat "$ARCHIVE_CFG_FILE" | sed '/^$/d' | sed '/^#/d' | while read ARCHIVE_CFG
do
SOURCE_SERVER_NAME=`echo "$ARCHIVE_CFG" | awk -F '|' '{ print... (2 Replies)
Discussion started by: Anupam_Halder
2 Replies
LEARN ABOUT DEBIAN
shell-quote
SHELL-QUOTE(1p) User Contributed Perl Documentation SHELL-QUOTE(1p)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 v5.8.4 2005-05-03 SHELL-QUOTE(1p)