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Top Forums Shell Programming and Scripting Remove empty files in home directory Post 303011366 by RudiC on Wednesday 17th of January 2018 10:15:18 AM
Old 01-17-2018
Please explain the difference between an empty and a zero byte file. Show an "empty file which is greater then zero byte".
 

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MEMCMP(3)						   BSD Library Functions Manual 						 MEMCMP(3)

NAME
memcmp -- compare byte string LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <string.h> int memcmp(const void *s1, const void *s2, size_t n); DESCRIPTION
The memcmp() function compares byte string s1 against byte string s2. Both strings are assumed to be n bytes long. RETURN VALUES
The memcmp() function returns zero if the two strings are identical, otherwise returns the difference between the first two differing bytes (treated as unsigned char values, so that '200' is greater than '', for example). Zero-length strings are always identical. This behav- ior is not required by C and portable code should only depend on the sign of the returned value. SEE ALSO
bcmp(3), strcasecmp(3), strcmp(3), strcoll(3), strxfrm(3), wmemcmp(3) STANDARDS
The memcmp() function conforms to ISO/IEC 9899:1990 (``ISO C90''). BSD
June 4, 1993 BSD
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