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Full Discussion: awk Behavior
Top Forums UNIX for Beginners Questions & Answers awk Behavior Post 302978834 by bakunin on Thursday 4th of August 2016 02:17:26 PM
Old 08-04-2016
Even though this discussion about awk intrinsics is fascinating and my horizon was expanded (a collective "thank you" to you all in this thread), just for the record:

Wouldn't the usage of shell means (variable expansion or field splitting) be less costly than the use of an external program? I suppose thread-o/p does something with the values once he split them, something along the lines of:

Code:
awk -F',' '{print $1}' datafile | while read IP ; do ..... done

In such a case it might be easier to do:

Code:
while IFS=, read IP junk ; do ..... done < datafile

or, depending on what else is done:

Code:
while read LINE ; do
     IP="${LINE%,*}"
     .....
done < datafile

bakunin
 

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load_datafile(3alleg4)						  Allegro manual					    load_datafile(3alleg4)

NAME
load_datafile - Loads a datafile into memory. Allegro game programming library. SYNOPSIS
#include <allegro.h> DATAFILE *load_datafile(const char *filename); DESCRIPTION
Loads a datafile into memory in one go. If the datafile has been encrypted, you must first call packfile_password() to set the appropriate key. If the datafile contains truecolor graphics, you must set the video mode or call set_color_conversion() before loading it. Example: /* Load the resources for our game. */ DATAFILE *dat = load_datafile("game.dat"); if (!dat) abort_on_error("Couldn't load sound resources!"); /* Use resources. */ ... /* Destroy them when we don't need them any more. */ unload_datafile(dat); RETURN VALUE
Returns a pointer to the DATAFILE, or NULL on error. Remember to free this DATAFILE later to avoid memory leaks. SEE ALSO
load_datafile_callback(3alleg4), unload_datafile(3alleg4), load_datafile_object(3alleg4), set_color_conversion(3alleg4), fixup_datafile(3alleg4), packfile_password(3alleg4), find_datafile_object(3alleg4), register_datafile_object(3alleg4), excustom(3alleg4), exdata(3alleg4), exexedat(3alleg4), exgui(3alleg4), exsprite(3alleg4), exunicod(3alleg4) Allegro version 4.4.2 load_datafile(3alleg4)
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