Wrote a script to create a hidden account in OS X. It works perfect but I need to check if the UID is already in use before I tried to create the account.
This helps but if the selected UID minus (one) is in use the script proceeds. I need a loop and decrement the number until it finds one that is not in use.
Hi all, I am taking my first course in unix and having some problems.
I would line to create a scrip that does the following:
1) will tell me the number of users logged in. If a user is logged more than once just count it only ones.
2) want to be able to display the number of users that... (1 Reply)
Hi, I know that inode for each file is unique, but is it the for the directory? So far I found different directories has the same inode nubmer when you do ls -i, could some one explain why? Thanks a lot. (9 Replies)
Hello,
In korn-shell, how can I do to have an unique number for a date done.
I want to use it to have the number of days between two dates.
Thanks in advance. (4 Replies)
Hi,
how i can display all the unique number from my random number script below;
#!/usr/bin/perl
use strict;
my @alphanum = ( 'A' .. 'Z', 'a' .. 'z', 0 .. 9);
my $random = join('', map($alphanum,(1..5)));
print "$random\n";
Thank You. (1 Reply)
input
a 1
a 2
a -1
b 1
b 2
b 3
output
a -1
b 1
Thanx
---------- Post updated at 09:42 PM ---------- Previous update was at 09:10 PM ----------
Ok I managed it (7 Replies)
Hello Everyone
I need your help in fixing this issue., I have a log file which has data of users logging in to an application.
I want to search for a particular pattern in the log
ISSessionValidated=N
If this key word is found , the above 8 lines will contain the name of the user who's... (12 Replies)
In Bash using AWK or sed I need to convert the following file:
...
numitem_tab0 =<p>1 KEYWORD</p><p>2 KEYWORD</p><p>3 KEYWORD</p><p>4 KEYWORD</p><p>5 KEYWORD</p>...<p>25 KEYWORD</p>
subitem_tab0 =<p></p><p></p>
...
numitem_tab6 =<p>1 KEYWORD</p><p>2 KEYWORD</p><p>3 KEYWORD</p><p>4 KEYWORD</p>... (2 Replies)
I'm trying to solve the below problem for a number:
Enter a number and if it has all unique digits print unique number else non-unique number.
Eg:
Input=123; Output=unique number
Input=112; Output=Non-unique number
The thing i tried is splitting the number into digits by using % operator... (2 Replies)
What is an efficient way of counting the number of unique values in a 400 column by 1000 row array and outputting the counts per column, assuming the unique values in the array are:
A, B, C, D
In other words the output should look like: Value COL1 COL2 COL3
A 50 51 52... (16 Replies)
Discussion started by: Geneanalyst
16 Replies
LEARN ABOUT DEBIAN
sg
SG(1) User Commands SG(1)NAME
sg - execute command as different group ID
SYNOPSIS
sg [-] [group [-c ] command]
DESCRIPTION
The sg command works similar to newgrp but accepts a command. The command will be executed with the /bin/sh shell. With most shells you may
run sg from, you need to enclose multi-word commands in quotes. Another difference between newgrp and sg is that some shells treat newgrp
specially, replacing themselves with a new instance of a shell that newgrp creates. This doesn't happen with sg, so upon exit from a sg
command you are returned to your previous group ID.
CONFIGURATION
The following configuration variables in /etc/login.defs change the behavior of this tool:
SYSLOG_SG_ENAB (boolean)
Enable "syslog" logging of sg activity.
FILES
/etc/passwd
User account information.
/etc/shadow
Secure user account information.
/etc/group
Group account information.
/etc/gshadow
Secure group account information.
SEE ALSO id(1), login(1), newgrp(1), su(1), gpasswd(1), group(5), gshadow(5).
shadow-utils 4.1.5.1 05/25/2012 SG(1)