Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Trim spaces
Top Forums Shell Programming and Scripting Trim spaces Post 302701395 by Don Cragun on Saturday 15th of September 2012 08:53:42 PM
Old 09-15-2012
Hi rcc50886,
You said (correctly) that you want to compare numeric values, but the test operator you're using is for string comparisons. If you had changed your original code from:
Code:
if [[ `cat $ORATAB | grep ^+ASM | wc -l` = 1 ]]

to:
Code:
if [[ `cat $ORATAB | grep ^+ASM | wc -l` -eq 1 ]]

it would have done what you wanted.

As delugeag suggested:
Code:
if [[ `grep -c '^+ASM' $ORATAB` -eq 1 ]]

would be much more efficient.

It doesn't make any difference in this example, but quoting rules can get tricky inside `...`; using $( ... ) instead will frequently make your job much easier.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Strip leading and trailing spaces only in a shell variable with embedded spaces

I am trying to strip all leading and trailing spaces of a shell variable using either awk or sed or any other utility, however unscuccessful and need your help. echo $SH_VAR | command_line Syntax. The SH_VAR contains embedded spaces which needs to be preserved. I need only for the leading and... (6 Replies)
Discussion started by: jerardfjay
6 Replies

2. Shell Programming and Scripting

Trim white spaces using awk

Hi, I have a CSV file with footer information as below. The third value is the number of records in the file. Sometimes it contains both leading and trailing white spaces which i want to trim using awk. C,FOOTER , 00000642 C,FOOTER , 00000707 C, FOOTER,... (2 Replies)
Discussion started by: mona
2 Replies

3. Shell Programming and Scripting

Trim trailing spaces from each line in a file

Hello folks, Is there a simple way to trim trailing spaces from each line a file. Please let me know. Regards, Tipsy. (5 Replies)
Discussion started by: tipsy
5 Replies

4. Shell Programming and Scripting

To Trim spaces at the end of line

Hi Friends, Can any one help with this issue: How to trim spaces for each line at the end, Like I have a file in this format. EMP1 SMITH 46373 5 STREET HOWARD 74636 EMP2 JONES 5454 { these are spaces ........} EMP3 SMITH 46373 5 STREET HOWARD 74636 EMP4 JON 2554 { these are... (1 Reply)
Discussion started by: sbasetty
1 Replies

5. UNIX for Advanced & Expert Users

TRIM spaces in shell

am get a value like ' 15' in a variable what is the easiest method i can follow to strip 15 out (3 Replies)
Discussion started by: anumkoshy
3 Replies

6. UNIX for Dummies Questions & Answers

how to append spaces(say 10 spaces) at the end of each line based on the length of th

Hi, I have a problem where I need to append few spaces(say 10 spaces) for each line in a file whose length is say(100 chars) and others leave as it is. I tried to find the length of each line and then if the length is say 100 chars then tried to write those lines into another file and use a sed... (17 Replies)
Discussion started by: prathima
17 Replies

7. Shell Programming and Scripting

trim spaces in a file

Hi, I'm new to shell programming. Need some help in the following requirement: I have a file origFile.txt with values: origFile.txt .00~ 145416.02~ xyz~ ram kishor .35~ 765.76~ anh reid~ kishna kerry Now each row in the file has value for 4 columns with "~" as... (7 Replies)
Discussion started by: badrimohanty
7 Replies

8. Shell Programming and Scripting

trim spaces and replacing value

Hi, I have a file origFile.txt with values: origFile.txt .00~ 145416.02~ xyz~ ram kishor ~? ~ ~783.9 .35~ 765.76~ anh reid~ kelly woodburg ~nancy ~ ~? Now each row in the file has value for 7 columns with "~" as delimiter. The requirement was i)I need to erase the blank spaces between... (2 Replies)
Discussion started by: badrimohanty
2 Replies

9. Shell Programming and Scripting

trim spaces in unix for variable

HI Guys I have written a script using awk to split a file based on some identifier and renaming the file based on two values from specific length. ts a fixed width file. When I am trying to fetch the values a = substr($0,11,10) b = substr($0,21,5); i am getting spaces in a and b values .... (6 Replies)
Discussion started by: manish8484
6 Replies

10. UNIX for Beginners Questions & Answers

Trim trailing spaces from file

I have a file like this. hari,corporationbank,2234356,syndicate ravi,indian bank,4567900000000,indianbank,accese raju,statebank of hyderabad,565866666666666,pause Here each record has different record length and there are blank spaces... (8 Replies)
Discussion started by: kshari8888
8 Replies

LEARN ABOUT CENTOS

locale::codes::langfam

Locale::Codes::LangFam(3)				User Contributed Perl Documentation				 Locale::Codes::LangFam(3)

NAME

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

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. 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 = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_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.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

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 v5.16.3							    2013-02-27						 Locale::Codes::LangFam(3)
All times are GMT -4. The time now is 04:44 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy