I just stumbled upon a difference between using awk on the commandline and using it in a shellscript.
I have a variable, e.g.: PROG=vim
then i want to check if the package with this name is installed: TEMPVAL=$(dpkg -l | awk '{ if ($2 == "$PROG") print $2 }') (Im using Tempval later in an condition to check if it is installed)
Running this on the commandline works fine. In the shellscript TEMPVAL is always empty.
btw "toinstall" just contains some package names to be installed and comments prefixed with #
full script:
bash -x output:
Whats the Problem? I already tried playing with the quotation, but nothing worked. Hope somebody can help me. I'd also appreciate hints or tips if theres a more convenient way of doing what i want to do
Hi,
I need to know how I'll be able to write a script that can goto a different dir where I don't have access to read,write and execute and also to run a commandline prompt in that dir with one file whose path has to be specified in that command.
Will I be able to do this?
Any ideas or... (2 Replies)
Hi there,
I have a wapper script which passes the argument from command prompt to inner script.. It works fine as long as the argument containing single word. But when value contains multiple word with space, not working as expected. I tried my best, couldn't find the reason. Gurus, pls.... (2 Replies)
Hi All,
I am working on nawk script, has the small function which prints the output on the screen.Am trying to print/append the same output in a file.
Basically nawk script should print the output on the console/screen and as well it should write/append the same result to a file.
script :... (3 Replies)
Hi..I have the data in a file like in this format, and I need the output time difference in seconds by using awk command. Start date/time and end date/time given in column 2,3 & 4,5. Please assist how to write shell script.
File1.txt
JOB1 10/09/2013 17:42:16 10/09/2013 17:43:46 SU 6202685/1... (4 Replies)
solaris 5.10 Generic_138888-03 sun4v sparc SUNW,Sun-Fire-T200
I need a sed command that tests true when presented with lines that contain either forward and backslash.
input file:
c:/myFile.txt
c:\yourFile.txt
It doesn't appear that sed (in my environment anyway) supports... (4 Replies)
Hello all,
I have a question regarding the difference betwen cron and command line.
What I would like to do is to print a statement into a logfile if a script has been executed from cron or from command line.
It should be as:
#!/bin/bash
if <Check if this script has been... (3 Replies)
Hi,
I'm trying to write a script to determine the time gap between HTTP PUT and HTTP DELETE requests in the HTTP Servers access log.
Normally client will do HTTP PUT to push content e.g. file_1.txt and 21 seconds later it will do HTTP DELETE, but sometimes the time varies causing some issues... (3 Replies)
In the awk I am trying to subtract the difference $3-$2 of each matching $4 before the first _ (underscore) and print that value in $13.
I think the awk will do that, but added comments. What I am not sure off is how to add a line or lines that will add sum each matching $13 value and put it in... (2 Replies)
Hello,
For my CGI, I have this script :
#!/bin/bash
echo "Content-type: text/html"
echo ""
echo '
<html>
<head>
<meta http-equiv="Content-Type" content="test/html"; charset=UTF-8">
<title> CLF MONITORING </title>
<h1> FRAME... (4 Replies)
Discussion started by: Tim2424
4 Replies
LEARN ABOUT DEBIAN
dpkg-preconfigure
DPKG-PRECONFIGURE(8) Debconf DPKG-PRECONFIGURE(8)NAME
dpkg-preconfigure - let packages ask questions prior to their installation
SYNOPSIS
dpkg-preconfigure [options] package.deb
dpkg-preconfigure --apt
DESCRIPTION
dpkg-preconfigure lets packages ask questions before they are installed. It operates on a set of debian packages, and all packages that
use debconf will have their config script run so they can examine the system and ask questions.
OPTIONS -ftype, --frontend=type
Select the frontend to use.
-pvalue, --priority=value
Set the lowest priority of questions you are interested in. Any questions with a priority below the selected priority will be ignored
and their default answers will be used.
--terse
Enables terse output mode. This affects only some frontends.
--apt
Run in apt mode. It will expect to read a set of package filenames from stdin, rather than getting them as parameters. Typically this
is used to make apt run dpkg-preconfigure on all packages before they are installed. To do this, add something like this to
/etc/apt/apt.conf:
// Pre-configure all packages before
// they are installed.
DPkg::Pre-Install-Pkgs {
"dpkg-preconfigure --apt --priority=low";
};
-h, --help
Display usage help.
SEE ALSO debconf(7)AUTHOR
Joey Hess <joeyh@debian.org>
2012-09-10 DPKG-PRECONFIGURE(8)