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Full Discussion: AWK specific output filename
Top Forums Shell Programming and Scripting AWK specific output filename Post 302685133 by Don Cragun on Friday 10th of August 2012 08:18:58 PM
Old 08-10-2012
Quote:
Originally Posted by LMSteed
Awesome! I just had to make one change to get it to work. I changed FNR==1 to NR==1. So I didn't get the header every other line. fAWKing sweet!
OK. I completely misunderstood what you were trying to do. Smilie I thought line 1 of EACH input file specified the filename where converted output for that input file was supposed to be written and I assumed you wanted a header in each output file. If you change the FNR==1 to NR==1, then the output file will be determined by the first line of the first file you process and line one in every other input file will be completely ignored (and in this case you don't need to worry about closing output files). Even though your sample input only showed two lines, I'm also surprised that you only have one line of data in each file. That is why my original code had:
Code:
FNR==1 { do stuff for line one in each file;next}
    { do stuff for every line except line one in each file }

Also in your orginal problem statement, your input had five fields; now it has eight. If you have a lot of fields to process at some point you want want to change:
Code:
    {print $1,$2,...,$NF >> outputfile}

to:
Code:
    {$1=$1;print >> outputfile}

I'm glad you got something that is working for you.
 

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LEARN ABOUT HPUX

setlinebuf

setbuf(3S)																setbuf(3S)

NAME

       setbuf(), setvbuf(), setlinebuf() - assign buffering to a stream file

SYNOPSIS


   Obsolescent Interface
DESCRIPTION

       can  be	used after a stream has been opened but before it is read or written.  It causes the array pointed to by buf to be used instead of
       an automatically allocated buffer.  If buf is the NULL pointer input/output will be completely unbuffered.

       A constant defined in the header file, tells how big an array is needed:

       can be used after a stream has been opened but before it is read or written.  type determines how stream is to be buffered.   Legal  values
       for type (defined in are:

	      causes input/output to be fully buffered.

	      causes output to be line buffered;
			  the buffer will be flushed when a newline is written, the buffer is full, or input is requested.

	      causes input/output to be completely unbuffered.

       When  an  output stream is unbuffered, information is queued for writing on the destination file or terminal as soon as written; when it is
       buffered, many characters are saved up and written as a block.  When the output stream is line-buffered, each line of output is queued  for
       writing on the destination terminal as soon as the line is completed (that is, as soon as a new-line character is written or terminal input
       is requested).  can also be used to explicitly write the buffer.

       If buf is not the NULL pointer, the array it points to is used for buffering instead of an automatically allocated buffer (from size speci-
       fies  the  size of the buffer to be used.  The constant in is suggested as a good buffer size.  If input/output is unbuffered, buf and size
       are ignored.

       By default, output to a terminal is line buffered and all other input/output is fully buffered.

       is used to change stream from block-buffered or unbuffered to line-buffered.  can be used any time the file descriptor is active.

   Obsolescent Interface
       assigns buffering to a stream file.

DIAGNOSTICS

       If an illegal value for type or size is provided, return a non-zero value.  Otherwise, the value returned will be zero.

   Note
       A common source of error is allocating buffer space as an "automatic" variable in a code block, then failing to close  the  stream  in  the
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AUTHOR

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SEE ALSO

       flockfile(3S), fopen(3S), getc(3S), malloc(3C), putc(3S), stdio(3S), thread_safety(5), glossary(9).

STANDARDS CONFORMANCE

																	setbuf(3S)
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