05-02-2008
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Where can i find solid information about programming in Perl?
Thank you in advance!!!:) (5 Replies)
Discussion started by: SolidSnake
5 Replies
2. Shell Programming and Scripting
When i run my perl/tk script, a perl window pops up behind the GUI window,, can this be hidden????
Also, can the Icon be changed, the Tk icon in every window??? (1 Reply)
Discussion started by: perleo
1 Replies
3. Shell Programming and Scripting
If I use 2 system commands in a script, will one finish before the next one starts? or will it start the first and the second at the same time?
i.e.
system("ps | grep rminer");
system("ls -al | grep 431"); (1 Reply)
Discussion started by: BG_JrAdmin
1 Replies
4. Shell Programming and Scripting
Hello,
pkzipc of a certain zip file yeilds the following in shell
PKZIP(R) Version 6.0 FAST! Compression Utility for AIX
Copyright 1989-2002 PKWARE Inc. All Rights Reserved. Registered Version
PKZIP Reg. U.S. Pat. and Tm. Off. Patent No. 5,051,745
Viewing .ZIP: test.zip
Length... (13 Replies)
Discussion started by: jerardfjay
13 Replies
5. Shell Programming and Scripting
I copy and paste from the book but this thing is not working.
I cannot figure out what is wrong with myline 9.. can someone please tell me
# cat ./sort4.pl
#!/usr/bin/perl -w
use strict;
use warnings;
my $input = shift;
my $output = shift;
open(IN, '<', $input) or die... (4 Replies)
Discussion started by: hankooknara
4 Replies
6. Shell Programming and Scripting
Below program, I do not get why item I am looking for is , instead of .
When I do $#text, i get the right value for $value1, but when I do , i get somsething4, instead of
somsethingxxxxxxxxxxxxxxxxxxx(which is what I am looking for.
when I do , I get empty.. why? what did I do wrong? can you... (2 Replies)
Discussion started by: hankooknara
2 Replies
7. Shell Programming and Scripting
I fail to see how below answer is 1? can someone explain this for me?
DB<3> $string = "The cat sat on the mat";
DB<4> $animal = ($string =~ m/The (.*) sat/);
DB<5> print $animal;
1 (2 Replies)
Discussion started by: hankooknara
2 Replies
8. Shell Programming and Scripting
I have a question regarding bulding a hash from a file which has below pattern
I thought I could write something like this but clearly my syntax is way off
$/ = "\n\n";
$" = "\n";
open(FILE, file1) || die;
my %keymaster = ( );
while (<FILE>) {
my $topinfo =~... (5 Replies)
Discussion started by: hankooknara
5 Replies
9. Shell Programming and Scripting
Hello all,
I have the following line:
xxx|xxxx|xxxx|xxx.xx|xxx
And i insert the values in an array. I am trying to find out if the field of the array (where field=xxx.xx) has the '.' character.
I am using the code below but it doesn't seem to work.
if($field=~ /./)
{
... (3 Replies)
Discussion started by: chriss_58
3 Replies
10. Shell Programming and Scripting
Hello everybody, I am new at the forum and a total newbie when it comes to Unix.
I am trying to see how I can add the ability to kill a user's processes?
I want to add this to my Shel Script Add the code/process into a subroutine.
Also, I would like to use an array to store the list... (0 Replies)
Discussion started by: kinelisch
0 Replies
LEARN ABOUT LINUX
setegid
SETEUID(2) Linux Programmer's Manual SETEUID(2)
NAME
seteuid, setegid - set effective user or group ID
SYNOPSIS
#include <sys/types.h>
#include <unistd.h>
int seteuid(uid_t euid);
int setegid(gid_t egid);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
seteuid(), setegid():
_BSD_SOURCE || _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600
DESCRIPTION
seteuid() sets the effective user ID of the calling process. Unprivileged user processes may only set the effective user ID to the real
user ID, the effective user ID or the saved set-user-ID.
Precisely the same holds for setegid() with "group" instead of "user".
RETURN VALUE
On success, zero is returned. On error, -1 is returned, and errno is set appropriately.
ERRORS
EPERM The calling process is not privileged (Linux: does not have the CAP_SETUID capability in the case of seteuid(), or the CAP_SETGID
capability in the case of setegid()) and euid (respectively, egid) is not the real user (group) ID, the effective user (group) ID,
or the saved set-user-ID (saved set-group-ID).
CONFORMING TO
4.3BSD, POSIX.1-2001.
NOTES
Setting the effective user (group) ID to the saved set-user-ID (saved set-group-ID) is possible since Linux 1.1.37 (1.1.38). On an arbi-
trary system one should check _POSIX_SAVED_IDS.
Under libc4, libc5 and glibc 2.0 seteuid(euid) is equivalent to setreuid(-1, euid) and hence may change the saved set-user-ID. Under glibc
2.1 and later it is equivalent to setresuid(-1, euid, -1) and hence does not change the saved set-user-ID. Similar remarks hold for sete-
gid().
According to POSIX.1, seteuid() (setegid()) need not permit euid (egid) to be the same value as the current effective user (group) ID, and
some implementations do not permit this.
SEE ALSO
geteuid(2), setresuid(2), setreuid(2), setuid(2), capabilities(7), credentials(7)
COLOPHON
This page is part of release 3.27 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2009-10-17 SETEUID(2)