Sponsored Content
Top Forums Shell Programming and Scripting NEW: need help with nawk using -v vars Post 302189519 by era on Saturday 26th of April 2008 04:44:17 AM
Old 04-26-2008
The general syntax of the case statement is

Code:
case expression in
  pattern1) commands to execute; could be several; then double semicolon;; 
  pattern2) commands to execute for this pattern; again, could be several;
      even on multiple lines --
      one or more newlines is equivalent to a single semicolon in this context;;
  pattern3) etcetera;;
esac

The branch for the first matching pattern is taken, and subsequent ones are ignored.

So in this case if $reply matches the pattern [Yy]* we do nothing (no commands before the terminating double semicolon) and otherwise (the pattern * matches all possible values), the command we execute is "break", which breaks out of the while loop.

If you need awk and the shell to perform your job, perhaps you could persuade your manager to set aside some time for you to read a book on shell programming ...?
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

need help with nawk using -v vars

I'm trying to pass nawk a shell variable to be used in a pattern match. I can't get this work. I'm calling nawk from a /bin/sh echo " Input file: \c" read var1 echo " Input: \c" read var2 nawk -F"|" -v x=$1 ' BEGIN $15 ~ /^'$var2'/ {print $2}' var1 {apary=$15; bparty=$23; time=$4;... (3 Replies)
Discussion started by: amon
3 Replies

2. Shell Programming and Scripting

Env vars in a SED script

Hello, <Preamble> I'm writing an installation script for use with PKGADD. What I want to do is take one of the variables set in the REQUEST script and use that in the install script so I can change applications configuration. My install script is as follows: sed ' /^DIRNAME/ i\... (8 Replies)
Discussion started by: Bags
8 Replies

3. Shell Programming and Scripting

Passing Vars between scripts

Im running a script that runs scripts within it self and i need to pass vars made in the original script to scripts run within it and the only way i can think to do it is right the string to a file and read the file in the script (4 Replies)
Discussion started by: rcunn87
4 Replies

4. Shell Programming and Scripting

how to access values of awk/nawk variables outside the awk/nawk block?

i'm new to shell scripting and have a problem please help me in the script i have a nawk block which has a variable count nawk{ . . . count=count+1 print count } now i want to access the value of the count variable outside the awk block,like.. s=`expr count / m` (m is... (5 Replies)
Discussion started by: saniya
5 Replies

5. Shell Programming and Scripting

check a list of vars

I have about 20 different variables that I need to check for null values then replace with a specific string if they are null. I've been doing this via 20 different if then statements like this: if ; then WIND="UUU" fi Is there a more elegant way to do this? The vars aren't sequential in... (6 Replies)
Discussion started by: audiophile
6 Replies

6. Shell Programming and Scripting

getting vars from external files

Hi I have an issue, I want to get variables from an external file. Variable file var1=test var2-test2 I want to get these vars from another shell script. Does any one know how? (5 Replies)
Discussion started by: digitalviking
5 Replies

7. Shell Programming and Scripting

List of Shell Env Vars

Hia, echo ${!S*} gives me all those env vars starting with S like SHELL SECONDS SHELLOPTS SHLVL etc. is there any way to deflate the shell variables' range like echo ${!A-E*} OR echo ${!A..S*} to list all env vars starting within range of A till E. Thanks Regards, Nasir (1 Reply)
Discussion started by: busyboy
1 Replies

8. Shell Programming and Scripting

Nawk Problem - nawk out of space in tostring on

Hi.. i am running nawk scripts on solaris system to get records of file1 not in file2 and find duplicate records in a while with the following scripts -compare nawk 'NR==FNR{a++;next;} !a {print"line"FNR $0}' file1 file2duplicate - nawk '{a++}END{for(i in a){if(a-1)print i,a}}' file1in the middle... (12 Replies)
Discussion started by: Abhiraj Singh
12 Replies

9. Shell Programming and Scripting

Read vars iteratively

Hello, I have a tab delimited list of 311 server & account names which I want to read those 2 variables and then connect to each server and get info on that particular job account. I've tried the following: while read server acct; do printf "********$server\t $acct***********\n" ... (3 Replies)
Discussion started by: mcbobolink
3 Replies
Tcl_StringMatch(3)					      Tcl Library Procedures						Tcl_StringMatch(3)

__________________________________________________________________________________________________________________________________________________

NAME
Tcl_StringMatch, Tcl_StringCaseMatch - test whether a string matches a pattern SYNOPSIS
#include <tcl.h> int Tcl_StringMatch(str, pattern) int Tcl_StringCaseMatch(str, pattern, flags) ARGUMENTS
const char *str (in) String to test. const char *pattern (in) Pattern to match against string. May contain special characters from the set *?[]. int flags (in) OR-ed combination of match flags, currently only TCL_MATCH_NOCASE. 0 specifies a case-sensitive search. _________________________________________________________________ DESCRIPTION
This utility procedure determines whether a string matches a given pattern. If it does, then Tcl_StringMatch returns 1. Otherwise Tcl_StringMatch returns 0. The algorithm used for matching is the same algorithm used in the string match Tcl command and is similar to the algorithm used by the C-shell for file name matching; see the Tcl manual entry for details. In Tcl_StringCaseMatch, the algorithm is the same, but you have the option to make the matching case-insensitive. If you choose this (by passing TCL_MATCH_NOCASE), then the string and pattern are essentially matched in the lower case. KEYWORDS
match, pattern, string Tcl 8.5 Tcl_StringMatch(3)
All times are GMT -4. The time now is 08:25 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy