Hi,
Is it possible to create a dynamic array in shell script. I am trying to get the list of logfiles that created that day and put it in a dynamic array. I am not sure about it. help me
New to scripting
Gundu (3 Replies)
Hi all,
i am quite fimiliar with shell scripting but i wouldn't regard myself as a semi professional at it.
I am trying to create an array variable to read in 4 lines from a file using head and tail command in a pipeline and store each line into each array. I have done the scripting in unix... (2 Replies)
Hi I have a system that gave me some messages on bootup that I was not used to seeing:
pseudo: pseudo-device: vol0
genunix: vol0 is /pseudo/vol@0
these came with these:
Feb 13 17:42:17 system1 eri: SUNW,eri0 : 100 Mbps full duplex link up
Feb 13 17:42:21 system1sendmail: My unqualified... (0 Replies)
i want to create an array
the array elements are populated depending upon the number of entries present in a data file
The data file is created dynamically
how to achieve the same
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)
I am wondering how I can save the file names (stored in $file or $fnames) in array which I can access with an index.
alias MATH 'set \!:1 = `echo "\!:3-$" | bc -l`'
set narg = $#argv
while ($iarg < $narg)
MATH iarg = $iarg + 1
set arg = $argv
set opt = ` echo $arg | awk... (1 Reply)
I am having trouble creating an array, I've tried everything google gives me but it won't work, and it seems as though it should. Using Ubunto 12.04 and bash.
#!/bin/bash
ARRAY=one two three
echo ${ARRAY}When I do this I receive the error
: two: not found
and
: Bad substitution
When I... (3 Replies)
Dear community,
how can I create an array from file taking only the 4th field?
out.txt file is something like this:
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20So the final array should be:
4 8 12 16 20With this command I created an array with all the fields, but I need only the 4th... (13 Replies)
Hi all...
Apologies for any typos, etc...
This took a while but it didn't beat me...
Although there are many methods of generating random numbers in a POSIX shell this uses integer maths and a simple C source to create an executable to get epoch to microseconds accuracy if it is needed. I take... (8 Replies)
Discussion started by: wisecracker
8 Replies
LEARN ABOUT ULTRIX
qmail-getpw
qmail-getpw(8) System Manager's Manual qmail-getpw(8)NAME
qmail-getpw - give addresses to users
SYNOPSIS
qmail-getpw local
DESCRIPTION
In qmail, each user controls a vast array of local addresses. qmail-getpw finds the user that controls a particular address, local. It
prints six pieces of information, each terminated by NUL: user; uid; gid; homedir; dash; and ext. The user's account name is user; the
user's uid and gid in decimal are uid and gid; the user's home directory is homedir; and messages to local will be handled by home-
dir/.qmaildashext.
In case of trouble, qmail-getpw exits nonzero without printing anything.
WARNING: The operating system's getpwnam function, which is at the heart of qmail-getpw, is inherently unreliable: it fails to distinguish
between temporary errors and nonexistent users. Future versions of getpwnam should return ETXTBSY to indicate temporary errors and ESRCH
to indicate nonexistent users.
RULES
qmail-getpw considers an account in /etc/passwd to be a user if (1) the account has a nonzero uid, (2) the account's home directory exists
(and is visible to qmail-getpw), and (3) the account owns its home directory. qmail-getpw ignores account names containing uppercase let-
ters. qmail-getpw also assumes that all account names are shorter than 32 characters.
qmail-getpw gives each user control over the basic user address and all addresses of the form user-anything. When local is user, dash and
ext are both empty. When local is user-anything, dash is a hyphen and ext is anything. user may appear in any combination of uppercase
and lowercase letters at the front of local.
A catch-all user, alias, controls all other addresses. In this case ext is local and dash is a hyphen.
You can override all of qmail-getpw's decisions with the qmail-users mechanism, which is reliable, highly configurable, and much faster
than qmail-getpw.
SEE ALSO qmail-users(5), qmail-lspawn(8)qmail-getpw(8)