Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Varying number of awk search strings

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Varying number of awk search strings
# 1  
Old 11-14-2008
Varying number of awk search strings
I've created an awk script that handles a varying number of search strings handed to it as command line parameters ($1 $2 etc). There may be 1, or 2 or 3 or more. A simplified version of the script is:

Code:
awk -v TYP="$1 $2 $3 $4 $5 $6" '
  BEGIN {
       CTYP = split (TYP,TYPP," ")
  }
   {for ( i=1; i <= CTYP; i++ ) {
           if ($0 ~ TYPP[i]) {print; break}
      }}
 ' file1 > file2
exit 0

This works, but is not efficient at all.
Could someone suggested an alternate method to handle this scenario? Any help is appreciated.

Thank you.
# 2  
Old 11-14-2008
Code:
#!/bin/ksh
set -A arr $@
cnt=0
while [[ cnt -lt ${#arr[*]} ]]
do
      echo ${arr[cnt]} 
      cnt=$$(( cnt + 1))
done > tmp.tmp
grep -f tmp.tmp mybigfile

# 3  
Old 11-24-2008
Thanks Jim, that makes sense using grep, but I should have been more clear, it needs to be awk because there is more to my script, but I removed it to simplify my post here. I use awk here because I extract other info related to the hits from the file as well.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash script to give multiple choices and a varying number of answers

Hello everybody, I use `case' quite a lot but , excellent as it is , it only gives one final result ; can anyone suggest a way whereas , say long lists of choices are given and I , or a user could select either one two or any number of results to be echoed . many thanks in... (3 Replies)
Discussion started by: V686
3 Replies

2. Shell Programming and Scripting

Needed value after the last delimeter in a file with varying number of delimited columns

Hi All, My file has the records as below: aaa\bbb\c\dd\ee\ff\gg zz\vv\ww pp\oo\ii\uu How can I get the value after the last delimeter. My o/p: gg ww uu Thanks in Advance, (5 Replies)
Discussion started by: HemaV
5 Replies

3. Shell Programming and Scripting

awk search an output string between two strings

I would like to search for strings stored in searchstringfile.txt in inputfiles. searchstringfile.txt J./F. Gls. Wal F. Towerinput1.txt What is needed is J./F. 12 var Gls. Wal 16 interp. Tower 12 input2.txt Awk shall search for F. 16 pt. J./F. 22 output.txt input1.txt J./F. = 12 var... (3 Replies)
Discussion started by: sdf
3 Replies

4. Shell Programming and Scripting

Compare strings between 2 arrays and print number in AWK

Hi to everyone, Please some help over here. Hi have array a with 6 elements and array b with 3 elements as shown inside BEGIN{} statement. I need help to get the correct sintax (the part in red) to compare if string from array b is in array a and print the number related for each match.... (3 Replies)
Discussion started by: Ophiuchus
3 Replies

5. Shell Programming and Scripting

awk search strings from array in textfile

I am wanting to take a list of strings and loop through a list of textfiles to find matches. Preferably with awk and parsing the search strings into an array. // Search_strings.txt tag string dummy stuff things // List of files to search in textfile1.txt textfile2.txt The... (6 Replies)
Discussion started by: sdf
6 Replies

6. Shell Programming and Scripting

awk how to search strings within a file from two different lines

Hi, i would really appreciate any help anyone can give with the following info. Thanks in advance. I need to run a search on a file that contains thousands of trades, each trade is added into the file in blocks of 25 lines. i know the search has to take place between a time stamp specified... (4 Replies)
Discussion started by: sp3arsy
4 Replies

7. Shell Programming and Scripting

Using Awk to Search Two Strings on One Line

If i wanted to search for two strings that are on lines in the log, how do I do it? The following code searches for just one string that is one one line. awk '/^/ {split($2,s,",");a=$1 FS s} /failure agaf@fafa/ {b=a} END{print b}' urfile What if I wanted to search for "failure agaf@fafa"... (3 Replies)
Discussion started by: SkySmart
3 Replies

8. Shell Programming and Scripting

Awk search for a element in the list of strings

Hi, how do I match a particular element in a list and replace it with blank? awk 'sub///' $FILE list="AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA,... (2 Replies)
Discussion started by: grossgermany
2 Replies

9. Shell Programming and Scripting

Parse apart strings of comma separated data with varying number of fields

I have a situation where I am reading a text file line-by-line. Those lines of data contain comma separated fields of data. However, each line can vary in the number of fields it can contain. What I need to do is parse apart each line and write each field of data found (left to right) into a file.... (7 Replies)
Discussion started by: 2reperry
7 Replies

10. Shell Programming and Scripting

awk search for Quoted strings (')

Hi All, I have files: 1. abc.sql 'This is a sample file for testing' This does not have quotations this also does not have quotations. and this 'has quotations'. here I need to list the hard coded strings 'This is a sample file for testing' and 'has quotations'. So i have... (13 Replies)
Discussion started by: kprattip
13 Replies
Login or Register to Ask a Question