Sponsored Content
Full Discussion: advanced awk
Top Forums Shell Programming and Scripting advanced awk Post 302409261 by Scott on Wednesday 31st of March 2010 01:33:06 PM
Old 03-31-2010
It was a bit complicated, I think for the task?

Code:
$ cat Test1
awk '
 $2 { G = $1 }
 $NF == U && ! _[G]++ { print G }
' U="$1" file1

$ cat file1
group1	user1
	user2
	user3
group2	user4
	user5
	user1
group3	user6
	user7
	user8

$ ./Test1 user1
group1
group2

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Advanced Getopts

Hi all, I am using getops to get the arguments passed by the command line. However, I need to specify some rules regarding the parameter sent. For eg: I have script called MyScript which accept parameter d, I, E, r, u so the usage should be like this: MyScript So far, I finished... (2 Replies)
Discussion started by: stefan_hery
2 Replies

2. UNIX for Dummies Questions & Answers

Advanced LS?

My goal is simply to output a listing of all files in a directory and all subdirectories, one per line, ****with their full path****. The *** part is what I can't figure out. I can get one on a line and I like having the extra info, so I'm using ls -Rl right now. But what I get is just the... (2 Replies)
Discussion started by: bostonrobot
2 Replies

3. UNIX for Advanced & Expert Users

Advanced I/O

What is Stream Devices and Stream pipes? Explain Advanced I/O ? (1 Reply)
Discussion started by: thangappan
1 Replies

4. Shell Programming and Scripting

Advanced printf

I want to print: WELCOME TO MY WORLD Where "WELCOME TO MY WORLD" will be in green (32) and the underline will be in yellow (33). How can i do the above using printf. printf "`tput smul`\033 leaves both the text and the underline in green. (3 Replies)
Discussion started by: proactiveaditya
3 Replies

5. Programming

Books for advanced C

Simple question , what good book is next step in learning C. I finished with K&R and I want to go to the next step , so if someone has a good book please share title :D I looked for Advanced C programming by example but it is too expansive 400$ on Amazon :( So please tell me (7 Replies)
Discussion started by: solaris_user
7 Replies

6. UNIX for Advanced & Expert Users

Help with advanced wget

Hi All, I am trying to download large no of data using wget. the URLS are saved in a file. I want to want for a few seconds after every URL is downloaded so i saw the option -w with wget but it does not seem to work. Can any one give me a working usage. wget -i ../file1t -o ../Outlog.log -N -S... (2 Replies)
Discussion started by: johnasvini
2 Replies

7. Shell Programming and Scripting

Advanced sed/awk help

I have thousands of files in HTML that looks like this: .... .... .... <!-- table horaire --> <!-- table horaire --> <table border="0" cellspacing="0" cellpadding="0" class="tblHoraires" summary="Table des horaires de la ligne 12"> <tr> <th scope="row"... (13 Replies)
Discussion started by: charafantah
13 Replies

8. UNIX for Dummies Questions & Answers

Help with awk (making simple/advanced ini parser)

Hello I'm searching some kind of example (or ready-made solution, but I don't really want it, because I want to learn awk more), to make something like a parser in awk for something like this (I put example, because I don't really know how to explain this): line1=1 line2=0 line3=1... (23 Replies)
Discussion started by: jormung
23 Replies

9. Shell Programming and Scripting

Advanced AWK Regexp substring to int & Replace

Hi! I have a difficult problem, to step up a unknown version number in a text file, and save the file. It would be great to run script.sh and the version gets increased. Example the content of the textfile.txt hello version = x bye This include three steps 1. First find the char after... (2 Replies)
Discussion started by: Beachboy72
2 Replies

10. Shell Programming and Scripting

EXPECT - advanced help

Hi, i need to automate installation (console) of product and found except as solution.iam new to expect and know basics of expect. i am struck with the following cases and need help for them to continue: 1) in every screen of installation at the end we have kind of buttons which we need to... (7 Replies)
Discussion started by: sai Harika
7 Replies
CALIFE.AUTH(5)						      BSD File Formats Manual						    CALIFE.AUTH(5)

NAME
calife.auth -- format of the calife authorization file DESCRIPTION
The calife.auth files are files consisting of newline separated records, one per user, containing three colon (``:'') separated fields. These fields are as follows: name User's login name / @group. shell User's shell user1,user2,...,usern List of logins allowed for the user name The name field is the login used to access the computer account. The login name must never begin with a hyphen (``-''); also, it is strongly suggested that neither upper-case characters or dots (``.'') be part of the name, as this tends to confuse mailers. No field may contain a colon (``:'') as this has been used historically to separate the fields in the user database. One alternative syntax is to use @group to specify that any user in the given group is allowed to use calife to become root. The shell field is the command interpreter the user prefers. If there is nothing in the shell field, the user's current shell as found in the (/etc/passwd) file is assumed. If the shell field is '*', then the account is considered as locked and access is denied. If the third parameter is specified, it is assumed to be the list of login the current user has the right to become. It enables use of calife for non-root only accounts. calife.auth is placed in /etc. EXAMPLE
# calife.auth-dist # # Format # # name[:shell_to_be_run][:user1,user2,usern] # fcb roberto:/bin/tcsh pb::guest,blaireau SEE ALSO
calife(1), su(1) HISTORY
A calife.auth file format appeared in DG/UX and SunOS, written for Antenne 2 in 1991. It has evolved with the extra shell specification. The login list was reintroduced in 2.7. AUTHOR
Ollivier Robert <roberto@keltia.frmug.fr.net> BSD
September 25, 1994 BSD
All times are GMT -4. The time now is 05:56 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy