This is construction that is used if a shell in question does not know arrays. The way it is used in the script that you were handed, is a bit cumbersome. Instead of
this could be used:
eval works like this: first everything after eval is passed as parameter to eval. The shell processes the variable ${N}. The first $ is escaped ( \$ ), so that it is not treated as a special character. So after processing the command eval gets the following string (suppose N=1):
end then executes this. As a result you would get:
Last edited by Scrutinizer; 09-16-2010 at 06:32 PM..
I was checking my error logs today and ran into some errors I have not seen before maybe somebody has run into these before?
/etc/cron.quarter-hourly/owusers.sh:
Set effective gid to mail(12) failed!
/usr/local/mailwatch/check_sendmail_relay.sh: line 8:
thanks (1 Reply)
I am facing a strange error while creating posix threads:
Given below are two snippets of code, the first one works whereas the second one gives a garbage value in the output.
Snippet 1
This works:
--------------
int *threadids;
threadids = (int *) malloc (num_threads * sizeof(int));
... (4 Replies)
Hi All,
I'm writing a nagios check that will see if our ldap servers are in sync...
I got the status data into a nested array, I would like to search key of each array and if "OK" is NOT present, echo other key=>values in the current array to a variable
so...eg...let take the single array... (1 Reply)
I have an array and two variables as below,
I need to check if $datevar is present in $filename.
If so, i need to replace $filename with the values in the array.
I need the output inside an ARRAY
How can this be done.
Any help will be appreciated. Thanks in advance. (2 Replies)
Please help me out: I've seen this construct
awk '{...}1'several times, like in scrutinizer's today's post
awk '{for(i=2;i<=NF;i++)if($i==$1)$i=RS $i}1' infilebut I can't find (manuals, man pages, internet FAQs,...) an explanation of what it does resp. stands for. Any hint is appreciated! (5 Replies)
Hi!
Let's say I would like to convert "1", "2", "3" to "a", "b", "c" respectively. But if a record contains other number then return "X".
input:
1
2
3
4
output:
a
b
c
X
What is the syntax for:
if(array doesn't contain a particular index){
then print the value "X" instead} (12 Replies)
Trying to do some control flow parsing based on the index postion of an array member. Here is the pseudo code I am trying to write in (preferably in pure bash) where possible. I am thinking regex with do the trick, but need a little help.
pesudo code
if == ENDSINFIVEINTS ]]; then
do... (4 Replies)
hello,
i need a bit of help on how to do this effectively in bash without a lot of extra looping or massive switch/case
i have a long array of M elements and a short array of N elements, so M > N always. M is not a multiple of N.
for case 1, I want to stretch N to fit M
arrayHuge
H = (... (2 Replies)
Discussion started by: f77hack
2 Replies
LEARN ABOUT FREEBSD
dh_installdebconf
DH_INSTALLDEBCONF(1) Debhelper DH_INSTALLDEBCONF(1)NAME
dh_installdebconf - install files used by debconf in package build directories
SYNOPSIS
dh_installdebconf [debhelperoptions] [-n] [--params]
DESCRIPTION
dh_installdebconf is a debhelper program that is responsible for installing files used by debconf into package build directories.
It also automatically generates the postrm commands needed to interface with debconf. The commands are added to the maintainer scripts by
dh_installdeb. See dh_installdeb(1) for an explanation of how that works.
Note that if you use debconf, your package probably needs to depend on it (it will be added to ${misc:Depends} by this program).
Note that for your config script to be called by dpkg, your postinst needs to source debconf's confmodule. dh_installdebconf does not
install this statement into the postinst automatically as it is too hard to do it right.
FILES
debian/package.config
This is the debconf config script, and is installed into the DEBIAN directory in the package build directory.
Inside the script, the token #DEBHELPER# is replaced with shell script snippets generated by other debhelper commands.
debian/package.templates
This is the debconf templates file, and is installed into the DEBIAN directory in the package build directory.
debian/po/
If this directory is present, this program will automatically use po2debconf(1) to generate merged templates files that include the
translations from there.
For this to work, your package should build-depend on po-debconf.
OPTIONS -n, --no-scripts
Do not modify postrm script.
-- params
Pass the params to po2debconf.
SEE ALSO debhelper(7)
This program is a part of debhelper.
AUTHOR
Joey Hess <joeyh@debian.org>
11.1.6ubuntu2 2018-05-10 DH_INSTALLDEBCONF(1)