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Top Forums Shell Programming and Scripting how to compare string integer with an integer? Post 302597030 by ahamed101 on Thursday 9th of February 2012 03:53:59 AM
Old 02-09-2012
If you are bot bothered about the decimal values, you can just strip it off using...
Code:
val=${i%%.*}


Or bc can be handy...
Code:
i=4.000
ret=$( echo "$i < 0" | bc )
echo $ret
0

i=-1.000
ret=$( echo "$i < 0" | bc )
echo $ret
1

man bc
Quote:
Relational expressions are a special kind of expression that always evaluate to 0 or 1, 0 if the relation
is false and 1 if the relation is true.
--ahamed

Last edited by ahamed101; 02-09-2012 at 05:04 AM..
This User Gave Thanks to ahamed101 For This Post:
 

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PAPI_strerror(3)						       PAPI							  PAPI_strerror(3)

NAME
PAPI_strerror - Returns a string describing the PAPI error code. SYNOPSIS
Detailed Description C Interface: #include <papi.h> char * PAPI_strerror( int errorCode ); Parameters: code -- the error code to interpret Return values: *error -- a pointer to the error string. NULL -- the input error code to PAPI_strerror() is invalid. PAPI_strerror() returns a pointer to the error message corresponding to the error code code. If the call fails the function returns the NULL pointer. This function is not implemented in Fortran. Example: * int ret; * int EventSet = PAPI_NULL; * int native = 0x0; * char error_str[PAPI_MAX_STR_LEN]; * * ret = PAPI_create_eventset(&EventSet); * if (ret != PAPI_OK) * { * fprintf(stderr, "PAPI error %d: %s0, ret, PAPI_strerror(retval)); * exit(1); * } * // Add Total Instructions Executed to our EventSet * ret = PAPI_add_event(EventSet, PAPI_TOT_INS); * if (ret != PAPI_OK) * { * PAPI_perror( "PAPI_add_event"); * fprintf(stderr,"PAPI_error %d: %s0, ret, error_str); * exit(1); * } * // Start counting * ret = PAPI_start(EventSet); * if (ret != PAPI_OK) handle_error(ret); * See Also: PAPI_perror PAPI_set_opt PAPI_get_opt PAPI_shutdown PAPI_set_debug Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_strerror(3)
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