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Top Forums Shell Programming and Scripting Uppercase/lowercase comparison of one character per line with awk?? Post 302385184 by alister on Thursday 7th of January 2010 09:24:06 AM
Old 01-07-2010
Hey, ivpz:

a is an array which holds the results of the split operation. It isn't used for anything except that split() requires a place to put the fields it creates. I'm only interested in the return value which indicates how many elements are in the array, which tells me if there are more commas or more periods.

Regarding the errors in the script's output, it may well be related to those lines which should be ignored. You didn't mention any "rogues" in your original post. The code's logic assumes that the file is well-formed, i.e. every line will be used and that they number exactly as required for the number of comparisons to be made.

Could you please provide an example or two of the "rogue" lines which should be ignored? Do they occur between sets of dupes or embedded within them? A minimal data sample with these special cases would help me help you. I assume when you mean that they include letters outside AaCcGgTt that doesn't include the '^F' I'm seeing in your sample data. Is that a form-feed control character in the data or is it a literal caret ("^") followed by a literal upper case eff ("F")?



alister

Last edited by alister; 01-07-2010 at 10:34 AM..
 

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fmt(1)								   User Commands							    fmt(1)

NAME
fmt - simple text formatters SYNOPSIS
fmt [-cs] [-w width | -width] [inputfile...] DESCRIPTION
fmt is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the -w width option. The default width is 72. fmt concatenates the inputfiles listed as arguments. If none are given, fmt formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. fmt does not fill nor split lines beginning with a `.' (dot), for compatibility with nroff(1). Nor does it fill or split a set of contiguous non-blank lines which is determined to be a mail header, the first line of which must begin with "From". Indentation is preserved in the output, and input lines with differing indentation are not joined (unless -c is used). fmt can also be used as an in-line text filter for vi(1). The vi command: !}fmt reformats the text between the cursor location and the end of the paragraph. OPTIONS
-c Crown margin mode. Preserve the indentation of the first two lines within a paragraph, and align the left margin of each subsequent line with that of the second line. This is useful for tagged paragraphs. -s Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such formatted text, from being unduly combined. -w width | -width Fill output lines to up to width columns. OPERANDS
inputfile Input file. ENVIRONMENT VARIABLES
See environ(5) for a description of the LC_CTYPE environment variable that affects the execution of fmt. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
nroff(1), vi(1), attributes(5), environ(5) NOTES
The -width option is acceptable for BSD compatibility, but it may go away in future releases. SunOS 5.10 9 May 1997 fmt(1)
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