Filtering text from a string


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Filtering text from a string
# 1  
Old 03-14-2001
Question

I'm trying to write a script which prints out the users who are loged in.
Printing the output of the "users" command isn't the problem. What I want is to filter out my own username.

users | grep -v (username)

does not work because the whole line in which username exists is suppressed.

If somebody knows the solution, please let me know.

-Cozmic
Cozmic
# 2  
Old 03-14-2001
Which flavor of UNIX are you using?
# 3  
Old 03-14-2001
what about: who | grep -v username

or if you dont want tty info: who | grep -v username | awk '{print $1}'
# 4  
Old 03-15-2001
who | grep -v username | awk '{print $1}'

works just fine for my purpose.

But still there is the issue of filtering text from a string, so that you can print the rest of the string contents. Or the other way around. Printing just the text (or the word(s) that matches the search criteria) you're looking for.

If you ask me grep should do it. But extending grep is to mutch work (or perhaps I'm to lazy Smilie).
The challenge is to do this with a script.

PS: I'm using FreeBSD.

[Edited by Cozmic on 03-15-2001 at 06:31 AM]
Cozmic
# 5  
Old 03-15-2001
grep can only print out (or exclude if using -v) whole lines.

You could have used sed to remove part of the line:
users | sed 's/username//g'
# 6  
Old 03-15-2001
Of cource somebody ran into this problem allready!
It was pretty ignorant of me to think that it wasn't allready solved Smilie.

Thanks PxT. This is just what I was looking for.
Cozmic
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Filtering text with awk

I need to filter a file that is composed like that: >Cluster 0 0 292nt, >last294258;size=1;... * >Cluster 1 0 292nt, >last111510;size=1;... * 1 290nt, >last136280;size=1;... at -/98.62% 2 292nt, >last217336;size=1;... at +/99.66% 3 292nt, >last280937;size=1;... at -/99.32% >Cluster 2... (6 Replies)
Discussion started by: pedro88
6 Replies

2. Shell Programming and Scripting

Need Help of filtering string from a file.

HI All, We have an Redhat Machine, And some folder with couple simple text files, this files containing a lot of lines with various strings and IP address with different classes. The Requirement in eventually , is to pass the all various IP addresses to Excel. My question is : what is... (4 Replies)
Discussion started by: James Stone
4 Replies

3. Shell Programming and Scripting

text filtering

INPUT FILE: Date: 10-JUN-12 12:00:00 B 0: 00 00 00 00 10 00 16 28 B 120: 00 00 00 39 53 32 86 29 Date: 10-JUN-12 12:00:10 B 0: 00 00 00 00 10 01 11 22 B 120: 00 00 00 29 23 32 16 29 Date: 10-JUN-12 12:00:20 B 0: 00 00 00 00 10 02 17 29 B 120: 00 00 35 51 42 66 14 Date: 10-JUN-12... (5 Replies)
Discussion started by: thibodc
5 Replies

4. Shell Programming and Scripting

filtering string

hlow all i need help for my case i want to get variable 20(in bold) but filter in print $3 not $2 so this input 95:20111005_20111123:1821546322 96:20111005_20111123:0053152068 97:20111005_20111123:1820960407 98:20111005_20111123:2021153102 99:20111005_20111123:2021153202... (4 Replies)
Discussion started by: zvtral
4 Replies

5. Shell Programming and Scripting

Filtering out text with awk

(0 Replies)
Discussion started by: nilekyle
0 Replies

6. Shell Programming and Scripting

text processing and filtering scripting

Still new to bash. Using debian lenny 5, bash version 3.2.39. I'm working on three scripts. I need help completing them. One script that inputs a plain text file, echo then chop it up into separate whitespace-delimited strings as an output. Not sure how to do this... for example, the... (4 Replies)
Discussion started by: l20N1N
4 Replies

7. Shell Programming and Scripting

filtering text

Hi how can I filter the text using this one. SAMPLE servervmpool -listall|tail -11 ================================================================================ pool number: 112 pool name: Net-Ora-1wk description: Net-Ora-1wk max partially full: 0... (12 Replies)
Discussion started by: kenshinhimura
12 Replies

8. Shell Programming and Scripting

filtering out duplicate substrings, regex string from a string

My input contains a single word lines. From each line data.txt prjtestBlaBlatestBlaBla prjthisBlaBlathisBlaBla prjthatBlaBladpthatBlaBla prjgoodBlaBladpgoodBlaBla prjgood1BlaBla123dpgood1BlaBla123 Desired output --> data_out.txt prjtestBlaBla prjthisBlaBla... (8 Replies)
Discussion started by: kchinnam
8 Replies

9. Shell Programming and Scripting

Another text filtering question

I want to remove everything from a file but the word following the search word. Example: crap crap crap crap SearchWord WordToKeep crap crap crap How would I do this with say awk or grep? Thank you! (4 Replies)
Discussion started by: DethLark
4 Replies

10. Shell Programming and Scripting

Need help in string filtering (KSH)

Hi all, I'm interested in printing out only the prefix of a formatted set of filenames. All files of this type have the same 8 character suffix. I'm using KSH. Is there a command I could use to print the filenames, less the last 8 characters? Was thinking of using sed 's/<last 8 chars>//',... (1 Reply)
Discussion started by: rockysfr
1 Replies
Login or Register to Ask a Question