Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: case command inside awk/nawk
Top Forums Shell Programming and Scripting case command inside awk/nawk Post 302150985 by radoulov on Thursday 13th of December 2007 08:32:21 AM
Old 12-13-2007
Edit: Just saw you use ~ and not == so the solution I posted won't work ...

You could write something like this (for consecutive numeric values you
can use split to avoid assigning explicitly the array indexes/elements)

Code:
awk 'NR == 1 {
	p = "0R00"
	h = "/home/user/M/"
	e = ".tmp"
	u[p 10] = "M1"
	u[p 11] = "MC"
	u[p 12] = "DuSI"
	u[p 14] = "FF"
	u[p 18] = "Cg"
}
$47 in u {
	print > (h u[$47] e)
}' FS="|" data

Or you can try to build your GNU Awk (>= gawk 3.1.3)
with the --enable-switch option (just found it and I've never used it)
and try the switch statement:

Quote:
switch (expression ) {
case value or regular expression :
case-body
default:
default-body
}
Last edited by radoulov; 12-13-2007 at 09:55 AM..
 

10 More Discussions You Might Find Interesting

1. 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

2. Shell Programming and Scripting

How to specify 'not case sensitive' in regex (nawk, sed, patern expencions)?

Is it possible to make the search in regular exprecion or in matching parts of sed, nawk and others to IGNORE the case of the search string? I mean, like if used 'grep' with -i option: > grep -i "abc" file I would like to be able to do the same, say, by nawk: > nawk '/abc/ {print $0}'... (4 Replies)
Discussion started by: alex_5161
4 Replies

3. Shell Programming and Scripting

using cp command inside nawk

Hello I have facing issue while using cp command inside nawk block. #!/bin/ksh my_name=$1 nawk -v my_name1=$my_name 'BEGIN { n = split(my_name1,names,":"); for (i=1;i<=n;i++) { print names; cpcmd = "cp " /tmp/test.txt" " ./sample system(cpcmd) } exit }' exit 0 i'am getting... (1 Reply)
Discussion started by: piscean_n
1 Replies

4. Shell Programming and Scripting

How to use same variable value inside as well as outside of the awk command?

Hi Jim, The following script is in working state. But i m having one more problem with awk cmd. Could you tell me how to use any variable inside awk or how to take any variable value outside awk. My problem is i want to maintain one property file in which i am declaring variable value into that... (12 Replies)
Discussion started by: Ganesh Khandare
12 Replies

5. Shell Programming and Scripting

problem in nawk : case insensitive pattern matching

HI, My file contains data something like 034500,5,B5004946544EB185,DEFAULT,0 Now i want to do a pettern match for DEFAULT and remove that particular line from file and transfer the rest contents to temp file.But my req is i want to do case insensitive matching ie DEFAULT / default. I... (4 Replies)
Discussion started by: centurion_13
4 Replies

6. Shell Programming and Scripting

Reading input record from inside nawk

Hi friends, I have small query with reg to awk search pattern.. below is my sample file and code which i tried.. $ cat file.txt xxx,yyyyy,messageID,sha xxxx,errorcode,messageID,name in the above sample file - let assume I know the errorcode(2nd record) using which I want to... (2 Replies)
Discussion started by: Shahul
2 Replies

7. Shell Programming and Scripting

Nested case inside awk

please let me know if the below code could be written efficiently inside single awk case "$INP" in ksh) cat catalog | awk 'BEGIN {FS=",";} { print $2 } END {}' ;; pset) cat catalog | awk 'BEGIN {FS=",";} { print $3 } END {}' ;; dml) cat catalog | awk 'BEGIN {FS=",";} {... (2 Replies)
Discussion started by: cvsanthosh
2 Replies

8. Shell Programming and Scripting

Multiple command execution inside awk command during xml parsing

below is the output xml string from some other command and i will be parsing it using awk cat /tmp/alerts.xml <Alert id="10102" name="APP-DS-ds_ha-140018-componentFailure-S" alertDefinitionId="13982" resourceId="11427" ctime="1359453507621" fixed="false" reason="If Event/Log Level(ANY) and... (2 Replies)
Discussion started by: vivek d r
2 Replies

9. Shell Programming and Scripting

Substitute variable inside nawk

Hi, I need to set "prd" in the below command to a unix variable nawk '/^#/ {next} FNR==NR {prd;next} !($0 in prd)' So, this is what i did fname=prd // unix shell variable nawk -v fname=$fname '/^#/ {next} FNR==NR {fname;next} !($0 in fname)'But the value of fname i.e "prd" is not... (8 Replies)
Discussion started by: mohtashims
8 Replies

10. UNIX for Beginners Questions & Answers

How to avoid arguments inside Nawk command?

Hi, Here is my command print $2 was meant to select the second column however, it is getting substituted with the second argument that was passed to the script. Can you please tell me how can I resolve this ? (6 Replies)
Discussion started by: mohtashims
6 Replies

LEARN ABOUT MOJAVE

case

case(n) 						       Tcl Built-In Commands							   case(n)

__________________________________________________________________________________________________________________________________________________

NAME

       case - Evaluate one of several scripts, depending on a given value

SYNOPSIS

       case string ?in? patList body ?patList body ...?

       case string ?in? {patList body ?patList body ...?}
_________________________________________________________________

DESCRIPTION

       Note:  the  case  command  is  obsolete	and  is  supported only for backward compatibility.  At some point in the future it may be removed
       entirely.  You should use the switch command instead.

       The case command matches string against each of the patList arguments in order.	Each patList argument is a list of one or  more  patterns.
       If  any	of  these patterns matches string then case evaluates the following body argument by passing it recursively to the Tcl interpreter
       and returns the result of that evaluation.  Each patList argument consists of a single pattern or list of patterns.  Each pattern may  con-
       tain  any of the wild-cards described under string match.  If a patList argument is default, the corresponding body will be evaluated if no
       patList matches string.	If no patList argument matches string and no default is given, then the case command returns an empty string.

       Two syntaxes are provided for the patList and body arguments.  The first uses a separate argument for each of the  patterns  and  commands;
       this  form  is convenient if substitutions are desired on some of the patterns or commands.  The second form places all of the patterns and
       commands together into a single argument; the argument must have proper list structure, with the elements of the list  being  the  patterns
       and commands.  The second form makes it easy to construct multi-line case commands, since the braces around the whole list make it unneces-
       sary to include a backslash at the end of each line.  Since the patList arguments are in braces in the second form, no command or  variable
       substitutions are performed on them;  this makes the behavior of the second form different than the first form in some cases.

SEE ALSO

       switch(n)

KEYWORDS

       case, match, regular expression

Tcl									7.0								   case(n)
All times are GMT -4. The time now is 02:16 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy