Sponsored Content
Full Discussion: help with perl
Top Forums Shell Programming and Scripting help with perl Post 50364 by Optimus_P on Thursday 22nd of April 2004 09:34:13 AM
Old 04-22-2004
im sure there are a variety of ways to do this.

one could be.

put the passwd file into an array (@passwd).
read your username.
then you can grep out the username from the @passwd.
here you could use split and get the fields you want
then you can display your output.

you might want to prompt the user to hit CTRL-D after he is done entering his username. or you can wrap that up in a loop so for each entry it is executed.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

[Perl] Accessing array elements within a sed command in Perl script

I am trying to use a script to replace the header of each file, whose filename are stored within the array $test, using the sed command within a Perl script as follows: $count = 0; while ( $count < $#test ) { `sed -e 's/BIOGRF 321/BIOGRF 332/g' ${test} > 0`; `cat 0 >... (2 Replies)
Discussion started by: userix
2 Replies

2. Shell Programming and Scripting

Passing date formats in Perl: i.e. Jul/10/2007 -> 20070710 (yyyymmdd) - Perl

Hi , This script working for fine if pass script-name.sh Jul/10/2007 ,I want to pass 20070710(yyyymmdd) .Please any help it should be appereciated. use Time::Local; my $d = $ARGV; my $t = $ARGV; my $m = ""; @d = split /\//, $d; @t = split /:/, $t; if ( $d eq "Jan" ) { $m = 0 }... (7 Replies)
Discussion started by: akil
7 Replies

3. Shell Programming and Scripting

perl/unix: script in command line works but not in perl

so in unix this command works works and shows me a list of directories find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt but when i try running a perl script to run this command my $query = 'find . -name \*.xls -exec dirname {} \; | sort -u | > list.txt';... (2 Replies)
Discussion started by: kpddong
2 Replies

4. Shell Programming and Scripting

Perl :How to print the o/p of a Perl script on console and redirecting same in log file @ same time.

How can i print the output of a perl script on a unix console and redirect the same in a log file under same directory simultaneously ? Like in Shell script, we use tee, is there anything in Perl or any other option ? (2 Replies)
Discussion started by: butterfly20
2 Replies

5. Shell Programming and Scripting

Hidden Characters in Regular Expression Matching Perl - Perl Newbie

I am completely new to perl programming. My father is helping me learn said programming language. However, I am stuck on one of the assignments he has given me, and I can't find very much help with it via google, either because I have a tiny attention span, or because I can be very very dense. ... (4 Replies)
Discussion started by: kittyluva2
4 Replies

6. Shell Programming and Scripting

HELP on Perl array / sorting - trying to convert Korn Shell Script to Perl

Hi all, Not sure if this should be in the programming forum, but I believe it will get more response under the Shell Programming and Scripting FORUM. Am trying to write a customized df script in Perl and need some help with regards to using arrays and file handlers. At the moment am... (3 Replies)
Discussion started by: newbie_01
3 Replies

7. UNIX for Advanced & Expert Users

perl and HP-UX : instmodsh in combination with software depot : update inventory for installed Perl

we create a HP-UX software depot with a new perl-modul. after installation of the software depot, the perl module i can't find with instmodsh in the inventory for installed Perl modules. - i have learned of using instmodsh command : i find out what modules are already installed on my system. ... (0 Replies)
Discussion started by: bora99
0 Replies

8. Shell Programming and Scripting

Perl :: reading values from Data Dumper reference in Perl

Hi all, I have written a perl code and stored the data into Data structure using Data::Dumper module. But not sure how to retreive the data from the Data::Dumper. Eg. Based on the key value( Here CRYPTO-6-IKMP_MODE_FAILURE I should be able to access the internal hash elements(keys) ... (1 Reply)
Discussion started by: scriptscript
1 Replies

9. Programming

Perl: restrict perl from automaticaly creating a hash branches on check

My issue is that the perl script (as I have done it so far) created empty branches when I try to check some branches on existence. I am using multydimentional hashes: found it as the best way for information that I need to handle. Saing multidimentional I means hash of hashes ... So, I have ... (2 Replies)
Discussion started by: alex_5161
2 Replies

10. Programming

PERL: In a perl-scripttTrying to execute another perl-script that SETS SOME VARIABLES !

I have reviewed many examples on-line about running another process (either PERL or shell command or a program), but do not find any usefull for my needs way. (Reviewed and not useful the system(), 'back ticks', exec() and open()) I would like to run another PERL-script from first one, not... (1 Reply)
Discussion started by: alex_5161
1 Replies
HESIOD(3)						     Library Functions Manual							 HESIOD(3)

NAME
hesiod_getpwnam, hesiod_getpwuid, hesiod_free_passwd - Hesiod functions for retrieving passwd information SYNOPSIS
#include <hesiod.h> struct passwd *hesiod_getpwnam(void *context, const char *name) struct passwd *hesiod_getpwuid(void *context, uid_t uid) void hesiod_free_passwd(void *context, struct passwd *pw) cc file.c -lhesiod DESCRIPTION
This family of functions allows you to retrieve passwd database information using Hesiod. To perform lookups, you need an initialized Hes- iod context; see hesiod(3) for details. You may look up passwd information by name or by uid; information is returned in the same format as by getpwnam or getpwuid. It is the caller's responsibility to call hesiod_free_passwd with the returned passwd entry to free the resources used by the passwd entry. Hesiod queries for passwd information are made using the ``passwd'' or ``uid'' Hesiod type, using either the username or the decimal repre- sentation of the uid as the Hesiod name. The corresponding records should be a colon-separated list of fields giving the username, encrypted password, uid, gid, GECOS information, home directory, and shell of the user. RETURN VALUES
On failure, hesiod_getpwnam and hesiod_getpwuid return NULL and set the global variable errno to indicate the error. ERRORS
These calls may fail for any of the reasons the routine hesiod_resolve may fail. SEE ALSO
hesiod(3) 30 November 1996 HESIOD(3)
All times are GMT -4. The time now is 03:39 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy