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Top Forums Shell Programming and Scripting Issue while executing C executable with argument in shell script Post 302865539 by Don Cragun on Friday 18th of October 2013 05:45:52 PM
Old 10-18-2013
Quote:
Originally Posted by ravjot28
Hi All,
I am new to this forum and also shell script Smilie

My task is I have to read CSV file get the data from the file and use the data to call c executable with data as argument.And the output from c executable should be stored to new CSV file

Please find below my code

Code:
testfunction() { echo ${#1};./my_c_executable_file_name -l $1> op.txt; }
IFS=","
echo "Starting to read csv"
i=1
while read f1 f2
do
    echo "$f2";
    testfunction "$f2";
    value=$(<op.txt);
    echo $f1, $value >> output.csv

done < Book1.csv

Now the issue is the data coming from 1st CSV is around 804 characters, but when the code is executing the c executable it is not sending complete string in the argument.

I tried to remove \n but got an error file name too long.

Please help me for the same.

Thanks in advance
Try making the following changes and running your script again:
Change:
Code:
testfunction() { echo ${#1};./my_c_executable_file_name -l $1> op.txt; }

to:
Code:
testfunction() { echo ${#1};./my_c_executable_file_name -l "$1" > op.txt }

and change:
Code:
    echo $f1, $value >> output.csv

to:
Code:
    printf "%s,%s\n" "$f1" "$value" >> output.csv

 

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

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 v5.16.3 2013-02-27 Locale::Codes::LangExt(3)
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