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Full Discussion: Help for exiting the function not script
Top Forums Shell Programming and Scripting Help for exiting the function not script Post 302946005 by Don Cragun on Friday 5th of June 2015 03:01:30 PM
Old 06-05-2015
Quote:
Originally Posted by sea
There is no need for the rewrite of the catches all the time, could be simplified to:
Code:
cmd1 || return 1
cmd2 || return 1
...

This is acutaly just (about) the same as:
Code:
 cmd1 
 RC=$?
 if [ $RC -ne 0 ]
 then
   return $RC
 fi

Saying, if your only condition is to exit/return if any command fails, it could be simplified/short.
hth
Replacing
Code:
 cmd1 
 RC=$?
 if [ $RC -ne 0 ]
 then
   return $RC
 fi

with:
Code:
 cmd1 || return 1

compresses all of the possible error exit status information to a single value (1). The equivalent replacement (if you just care about the exit code) would be:
Code:
 cmd1 || return $?

If the code calling the function is depending on RC being set; it could be shortened to:
Code:
 cmd1 || return $((RC = $?))

(assuming that you're using a shell that supports POSIX arithmetic substitutions.
 

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LEARN ABOUT DEBIAN

locale::currency

Locale::Currency(3perl) 				 Perl Programmers Reference Guide				   Locale::Currency(3perl)

NAME

       Locale::Currency - standard codes for currency identification

SYNOPSIS

	   use Locale::Currency;

	   $curr = code2currency('usd');     # $curr gets 'US Dollar'
	   $code = currency2code('Euro');    # $code gets 'eur'

	   @codes   = all_currency_codes();
	   @names   = all_currency_names();

DESCRIPTION

       The "Locale::Currency" module provides access to standard codes used for identifying currencies and funds, such as those defined in ISO
       4217.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 4217
       three-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying currencies. The ones currently supported are:

       alpha
	   This is a set of three-letter (uppercase) codes from ISO 4217 such as EUR for Euro.

	   Two of the codes specified by the standard (XTS which is reserved for testing purposes and XXX which is for transactions where no
	   currency is involved) are omitted.

	   This code set is identified with the symbol "LOCALE_CURR_ALPHA".

	   This is the default code set.

       num This is the set of three-digit numeric codes from ISO 4217.

	   This code set is identified with the symbol "LOCALE_CURR_NUMERIC".

ROUTINES

       code2currency ( CODE [,CODESET] )
       currency2code ( NAME [,CODESET] )
       currency_code2code ( CODE ,CODESET ,CODESET2 )
       all_currency_codes ( [CODESET] )
       all_currency_names ( [CODESET] )
       Locale::Currency::rename_currency  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Currency::add_currency  ( CODE ,NAME [,CODESET] )
       Locale::Currency::delete_currency  ( CODE [,CODESET] )
       Locale::Currency::add_currency_alias  ( NAME ,NEW_NAME )
       Locale::Currency::delete_currency_alias	( NAME )
       Locale::Currency::rename_currency_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Currency::add_currency_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Currency::delete_currency_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.iso.org/iso/support/currency_codes_list-1.htm
	   The ISO 4217 data.

AUTHOR

       See Locale::Codes for full author history.

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

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001	  Michael Hennecke
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

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

perl v5.14.2							    2011-09-26						   Locale::Currency(3perl)
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