Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

grep command & shell procedure's

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers grep command & shell procedure's
# 1  
Old 04-24-2001
hello, i'm trying to pluck words from a list that have exactly 3 occurances of a specified letter. I've come up with this :
grep -i .*$1.*$1.*$1.*
But this also selects words with 4 or more, any tips?

I'm putting this into a shell procedure and want to be able to add a switch before I put the letter to searched in ($1), if you could point me to the correct manual page to read up on that it would be great, I'm using bourne shell.

Thanks in advance
Steve

# 2  
Old 04-25-2001
Try using a ? instead of the * The ? is for only one character place where as * is for multiple. I think this is will work in scripts also. (Haven't written any scripts yet)
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

applescript & grep - sed command

I'm new using Unix commands in applescript. The following script you choose different folders with PDfs, get file count of PDfs on chosen folders, & write the results in text file. set target_folder to choose folder with prompt "Choose target folders containing only PDFs to count files" with... (0 Replies)
Discussion started by: nellbern
0 Replies

2. UNIX for Dummies Questions & Answers

Grep char count & pipe to sed command

Hi I am having a 'grep' headache Here is the contents of my file: (PBZ,CP,(((ME,PBZ,BtM),ON),((ME,((PBZ,DG),(CW9,PG11))),CW9,TS2,RT1))) I would like to count out how many times 'PBZ' occurs and then place that number in the line above 3... (8 Replies)
Discussion started by: cavanac2
8 Replies

3. UNIX for Dummies Questions & Answers

VI 'go to position #' command

I apologize is this is somewhere else but I did look.... Is there a command to goto position # x within the VI editor? I've seen where you can search for a particular char string but I need to go to position 200 within a record (tired of counting positions)...:) Thanks in advance... (2 Replies)
Discussion started by: hedrict
2 Replies

4. Shell Programming and Scripting

grep doesn't work within shell script?

I am trying to run the following code from a script file but it complains that syntax of (both instances of) grep is wrong. When I copy and paste it to the terminal, it is OK. Any idea what the problem might be? set i = `grep -c #define flags.h` while ($i>20) @ i-- my func (`cat... (4 Replies)
Discussion started by: barisgultekin
4 Replies

5. UNIX for Dummies Questions & Answers

What is with the '&'.

Hi Gurus, I would appreciate if someone could enlighten this newbie as to how significant the '&' is to unix. Currently I am getting around to writing a script which has to deal with a lot of these ampersands either as starting chars or between chars. Please find below the simpliest way that I... (4 Replies)
Discussion started by: buRst
4 Replies

6. Shell Programming and Scripting

Clearify what it means under 'WHAT' when hit the 'w'-command

I wonder how I shall read the result below, especially 'what' shown below. The result was shown when I entered 'w'. E.g what is TOP? What is gosh ( what does selmgr mean?)? login@ idle JCPU PCPU what 6:15am 7:04 39 39 TOP 6:34am 6:45 45 45 TOP 6:41am ... (1 Reply)
Discussion started by: Aelgen
1 Replies

7. UNIX for Dummies Questions & Answers

'find' command question

my solaris text talks about the 'find' command... it further goes to talk about an "action" used with the find command. I am completely confused as to what the {} do with the find comand. the explanation is this: "A set of braces, {}, delimits where the file name is passed to the command from... (2 Replies)
Discussion started by: xyyz
2 Replies

8. UNIX for Dummies Questions & Answers

what is the 'whatis' command?

I am kind of new with Unix and I really need some help. Can you please tell me what the 'whatis' command is? and what does it do? Let's say that I have a file which I want to delete, what command will I need to use? If I have a directory that I want to delete all files from what command do... (11 Replies)
Discussion started by: mischiefdemon
11 Replies

9. UNIX for Dummies Questions & Answers

sed 's/~/\^J/g' how to get "^J" on same line as rest of the command.

when ever i type it in it always looks like so echo $file | sed 's/~/\ /g' how can i get it on one line? (6 Replies)
Discussion started by: Optimus_P
6 Replies

10. UNIX for Dummies Questions & Answers

How to subtract 2 hours from 'date' in shell ( /bin/sh ) script ?

I write a sh script that zip and copy to tape all files that older then 2 hours. 1. The way I choose is - touch a file with "now - 2 hours", then use fine with '! -newer' 2. Do you have any other idea to do it ? tnx. (1 Reply)
Discussion started by: yairon
1 Replies
Login or Register to Ask a Question