Change only first line of the match Post: 302881519

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Top Forums Shell Programming and Scripting Change only first line of the match Post 302881519 by Don Cragun on Monday 30th of December 2013 04:38:53 AM

12-30-2013

Registered User

You have already found that sed is not well suited to replacing only one occurrence of a string in a file.

We have shown you how to use awk to make the 3 different sets of changes you showed between your sample input and your sample output. You still have not given us an English specification of all of the changes that should be made to the input to produce the output. So, we have to assume that your real input does not match the assumptions we have made about your actual input based on the sample input you showed us.

Trying to guess at an input file specification from a short sample always leaves us to make assumptions. If our awk script are going into infinite loops, your real input does not match the assumptions we had to make from your sample input.

If you give us:

the OS and release of that OS that you're using,
the shell you're using,
a clear specification of your input file format,
a clear specification of all of the transformations to be made to turn your input into your desired output, and
sample input and output files that match the above specifications

we may be able to help you come up with a script to do it. If you insist on using sed (with or without grep) to make the types of transformations you've shown us, you're out of luck.

Don Cragun

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LEARN ABOUT LINUX

get_sound_input_cap_bits

get_sound_input_cap_bits(3alleg4)				  Allegro manual				 get_sound_input_cap_bits(3alleg4)

NAME

       get_sound_input_cap_bits - Checks which audio input sample formats are supported. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       int get_sound_input_cap_bits();

DESCRIPTION

       Checks which sample formats are supported by the current audio input driver, returning one of the bitfield values:

	  0 = audio input not supported
	  8 = eight bit audio input is supported
	  16 = sixteen bit audio input is supported
	  24 = both eight and sixteen bit audio input are supported
       Example:

	  cap = get_sound_input_cap_bits();
	  if (cap == 0) {
	     /* Ugh, no audio input supported? */
	  } else {
	     if (cap & 8) {
		/* We have eight bit audio input. */
	     }
	     if (cap & 16) {
		/* We have sixteen bit audio input. */
	     }
	  }

SEE ALSO

       start_sound_input(3alleg4), get_sound_input_cap_parm(3alleg4), get_sound_input_cap_rate(3alleg4), get_sound_input_cap_stereo(3alleg4)

Allegro 							   version 4.4.2				 get_sound_input_cap_bits(3alleg4)

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