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Top Forums Shell Programming and Scripting Combine awk commands into one Post 302979702 by RudiC on Thursday 18th of August 2016 01:31:32 AM
Old 08-18-2016
There are solutions around in here, e.g. using a "ring buffer", that do this more understandably (and mayhap elegantly).
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vrb_is_not_empty(3)					      VRB Programmer's Manual					       vrb_is_not_empty(3)

NAME
vrb_is_not_empty - indicate if VRB is not_empty LIBRARY
-lvrb SYNOPSIS
#include <vrb.h> int vrb_is_not_empty(vrb_p vrb); DESCRIPTION
vrb_is_not_empty returns false or true to indicate if the specified virtual ring buffer is empty or not. ARGUMENTS
vrb_p vrb specifies the virtual ring buffer to examine RETURN VALUE
int If the virtual ring buffer is not empty, 1 is returned, otherwise 0 is returned. SEE ALSO
vrb(3), vrb_capacity(3), vrb_data_len(3), vrb_data_ptr(3), vrb_destroy(3), vrb_get(3), vrb_get_min(3), vrb_give(3), vrb_init(3), vrb_init_opt(3), vrb_is_empty(3), vrb_is_full(3), vrb_is_not_full(3), vrb_move(3), vrb_new(3), vrb_new_opt(3), vrb_put(3), vrb_put_all(3), vrb_read(3), vrb_read_min(3), vrb_resize(3), vrb_space_len(3), vrb_space_ptr(3), vrb_take(3), vrb_uninit(3), vrb_write(3), vrb_write_min(3) vrb 2002-09-30 vrb_is_not_empty(3)
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