Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to pass IF condition via shell varibale in awk?
Top Forums Shell Programming and Scripting How to pass IF condition via shell varibale in awk? Post 302977772 by anillambait on Friday 22nd of July 2016 03:51:36 AM
Old 07-22-2016
How to pass IF condition via shell varibale in awk?
Hello,

I have one query regarding passing IF condition shell variable inside awk. Here is the case-

File content of keydefn.exp
Code:
201~2~LM Limit 02-current value~Limit 02    ~Limit02~Current~Value  ~N~Y~S~0~9999999
201~3~LM Limit 03-current value~Limit 03~Limit03~Current~Value~N~Y~S~-9999999~9999999

Case 1:
Code:
awk 'BEGIN{IGNORECASE=1;FS="~"}; { if ($2=="2") { print $0}}' keydefn.exp  ==> This is working fine!

Output:
Code:
201~2~LM Limit 02-current value~Limit 02    ~Limit02~Current~Value  ~N~Y~S~0~9999999


Case 2:
But when we move the IF condition in some variable like con='$2 == "2"' then it's not working

Code:
awk -v cond="$con" 'BEGIN{IGNORECASE=1;FS="~"}; { if (cond) { print $0}}' keydefn.exp  ==> This is not working

Output:
Code:
201~2~LM Limit 02-current value~Limit 02    ~Limit02~Current~Value  ~N~Y~S~0~9999999
201~3~LM Limit 03-current value~Limit 03~Limit03~Current~Value~N~Y~S~-9999999~9999999

Please suggest the reason!
Last edited by Scrutinizer; 07-22-2016 at 05:30 AM.. Reason: code tags
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Is it possible to pass variable from awk to shell script

Hello experts, can I return a value from gawk to a shell script ? My script as follows, #Here I want the num value to shell script so that I can use later gawk ' { split($0,num,","); print num }' gawk -v no=$number '{print no}' file1 ... (3 Replies)
Discussion started by: user_prady
3 Replies

2. Shell Programming and Scripting

Pass array variabel to awk from shell

Hi I need to pass an array to Awk script from Shell. Can you please tell how to do it? How to pass this array add_ct_arr to an awk script or access it in awk? i=1 while ; do add_ct_arr=$(echo ${adda_count} | awk -v i=$i -F" " '{print $i;}') echo ${add_ct_arr} ... (1 Reply)
Discussion started by: appsguy616
1 Replies

3. Shell Programming and Scripting

How to pass values between awk and shell scripts

I know that we can call system command to execute shell script in awk. but it does not return the result of the command executed , but only returns the value of the command executoin status ( 1/0 --> failure / success). Could anyone let me know how to solve this problem. (9 Replies)
Discussion started by: rajnikanth.1912
9 Replies

4. Shell Programming and Scripting

How to pass shell variables to awk's pattern?

How would I get folders owned by specific users.. I want to pass users as a shell variable to awk. drwxr-x--x 3 user1 allusers 512 Oct 14 2006 946157019/ drwxr-x--x 3 user2 allusers 512 Mar 9 2008 94825883/ drwxr-x--x 3 user3 allusers 512 Mar 9 2008 948390501/ ... (3 Replies)
Discussion started by: kchinnam
3 Replies

5. UNIX for Dummies Questions & Answers

How to pass a variable from shell to awk

I know this topic has been dealt with previously, but the solutions I've seen don't work for me apparently. I need to pass a variable defined in the shell to one in awk: $ echo $var1 3 $ cat aaa aaa 1 bbb 2 ccc 3 ddd 4 eee 5I've tried this, without success: $ awk... (2 Replies)
Discussion started by: metaltree
2 Replies

6. Shell Programming and Scripting

pass shell parameters to awk does not work

Why does this work for myfile in `find . -name "R*VER" -mtime +1` do SHELLVAR=`grep ^err $myfile || echo "No error"` ECHO $SHELLVAR done and outputs No error err ->BIST Login Fail 3922 err No error err ->IR Remote Key 1 3310 err But... (2 Replies)
Discussion started by: alan
2 Replies

7. Shell Programming and Scripting

Pass awk array variable to shell

Hi, all suppose I have following myfile (delimited by tab) aa bb cc dd ee ffand I have following awk command: awk 'BEGIN{FS="\t"}{AwkArrayVar_1=$1;AwkArrayVar_2=$2};END{for(i=0; i<NR; i++) print i, AwkArrayVar_1, AwkArrayVar_2,}' myfileMy question is: how can I assign the awk array... (7 Replies)
Discussion started by: littlewenwen
7 Replies

8. UNIX for Dummies Questions & Answers

Pass shell Variable to awk

Hello, May i please know how do i pass the shell variable to awk expression in the below script. It is returning null #!/bin/bash UNINUM=720922 UNINUM_DESC=`awk -F'|' -v UNINUM=$2 '/UNINUM/ {print $4}' datafile` echo $UNINUM_DESC datafile 4|First|720194|asdasdad 4|First|720735|asdasdsa... (8 Replies)
Discussion started by: Ariean
8 Replies

9. Shell Programming and Scripting

Need to pass shell arguments into Nawk/awk

Hi, I am in critical need of help, Thanks a ton for your help. I need to know how to pass the shell argument into nawk code in AIX. so that my file gets passed into that awk script and it can execute it part. To be detail, i have more than 100 files and in those files a particular field... (6 Replies)
Discussion started by: Selva_2507
6 Replies

10. Shell Programming and Scripting

How to pass variable from awk script to shell?

Hi, Please need to print the Rej variable outsite the awk script which is given below...please advised how to achieve it. #!/bin/bash echo "Enter DMU Pipe delimited File name for the Feed to be validated" read DMU_File echo "Enter Pre-DMU File name for the Feed" read Predum_file ... (3 Replies)
Discussion started by: pelethangjam
3 Replies

LEARN ABOUT MOJAVE

locale::codes::langext

Locale::Codes::LangExt(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangExt(3pm)

NAME

       Locale::Codes::LangExt - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangExt;

	  $lext = code2langext('acm');		       # $lext gets 'Mesopotamian Arabic'
	  $code = langext2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langext_codes();
	  @names   = all_langext_names();

DESCRIPTION

       The "Locale::Codes::LangExt" module provides access to standard codes used for identifying language extensions, such as those as defined in
       the IANA language registry.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language
       registry codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language extensions. A code set may be specified using either a name, or
       a constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langext('acm','alpha');
	  $lext = code2langext('acm',LOCALE_LANGEXT_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from the IANA language registry, such as 'acm' for Mesopotamian Arabic.

	   This is the default code set.

ROUTINES

       code2langext ( CODE [,CODESET] )
       langext2code ( NAME [,CODESET] )
       langext_code2code ( CODE ,CODESET ,CODESET2 )
       all_langext_codes ( [CODESET] )
       all_langext_names ( [CODESET] )
       Locale::Codes::LangExt::rename_langext  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangExt::add_langext  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangExt::delete_langext  ( CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangExt::delete_langext_alias  ( NAME )
       Locale::Codes::LangExt::rename_langext_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::delete_langext_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.18.2							    2013-11-04					       Locale::Codes::LangExt(3pm)
All times are GMT -4. The time now is 01:42 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy