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Full Discussion: wc command confusion
Top Forums UNIX for Dummies Questions & Answers wc command confusion Post 302088011 by Ygor on Friday 8th of September 2006 03:21:35 AM
Old 09-08-2006
If you are looking for a more portable method, perhaps use printf.
However, if you just want to find the size of a string, try ${#var}
 

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XPRINTF_EXEC(3) 					   BSD Library Functions Manual 					   XPRINTF_EXEC(3)

NAME
asxprintf_exec, dxprintf_exec, fxprintf_exec, sxprintf_exec, xprintf_exec, vasxprintf_exec, vdxprintf_exec, vfxprintf_exec, vsxprintf_exec, vxprintf_exec -- execute-only extensible printf execution SYNOPSIS
#include <printf.h> int asxprintf_exec(char ** restrict ret, printf_comp_t restrict pc, ...); int dxprintf_exec(int fd, printf_comp_t restrict pc, ...); int fxprintf_exec(FILE * restrict stream, printf_comp_t restrict pc, ...); int sxprintf_exec(char * restrict str, size_t size, printf_comp_t restrict pc, ...); int xprintf_exec(printf_comp_t restrict pc, ...); #include <stdarg.h> int vasxprintf_exec(char ** restrict ret, printf_comp_t restrict pc, va_list ap); int vdxprintf_exec(int fd, printf_comp_t restrict pc, va_list ap); int vfxprintf_exec(FILE * restrict stream, printf_comp_t restrict pc, va_list ap); int vsxprintf_exec(char * restrict str, size_t size, printf_comp_t restrict pc, va_list ap); int vxprintf_exec(printf_comp_t restrict pc, va_list ap); DESCRIPTION
These functions are execute-only, extensible printf (see xprintf(5)) variants, taking a printf_comp_t structure created by the format string compilation routine new_printf_comp(3). All these variants behave like their normal printf counterparts (see printf(3)) without 'x' and ``_exec'' in the name (except sxprintf_exec() and vsxprintf_exec() behave like snprintf() and vsnprintf(), respectively). SEE ALSO
printf(3), xprintf_comp(3), xprintf(5) Darwin Aug 19, 2012 Darwin
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