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Full Discussion: Clipping -awk
Top Forums UNIX for Dummies Questions & Answers Clipping -awk Post 302948835 by Don Cragun on Thursday 2nd of July 2015 09:42:34 PM
Old 07-02-2015
Quote:
Originally Posted by Xterra
In my files, the name followed by > is the identifier. If you see in my example above, the forth entry is called Reference -that's my reference is the alignment. I need to trim all sequences in the alignment based on the length of that particular entry.
The length of your reference sample is the same as the length of all of your other samples. So, with the reference sample:
Code:
>Reference
-ag---atagac---gatgg--agaga-catga--ggccca---

you strip out all of the hyphens and say that you want to trim the leading and trailing characters off of the other samples. How do you determine how many characters are to be stripped off of the start of the other samples and how do you determine how many characters are to be stripped off of the end of the other samples?

Is it really so hard to state in English exactly what is supposed to be done to change your sample input into your desired sample output?

Please help us help you! Please stop making us guess at what is supposed to be done! Please, give us a clear specification of what you are trying to do!
 

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LEARN ABOUT V7

ppmtosixel

ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME

       ppmtosixel - convert a portable pixmap into DEC sixel format

SYNOPSIS

       ppmtosixel [-raw] [-margin] [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as input.  Produces sixel commands (SIX) as output.	The output is formatted for color printing, e.g. for a DEC
       LJ250 color inkjet printer.

       If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled.  A printer control header and a color assignment table
       begin the SIX file.  Image data is written in a compressed format by default.  A printer control footer ends the image file.

OPTIONS

       -raw   If  specified,  each  pixel  will  be explicitly described in the image file.  If -raw is not specified, output will default to com-
	      pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands.  A raw file is often an order	of  magni-
	      tude larger than a compressed file and prints much slower.

       -margin
	      If  -margin  is not specified, the image will be start at the left margin (of the window, paper, or whatever).  If -margin is speci-
	      fied, a 1.5 inch left margin will offset the image.

PRINTING

       Generally, sixel files must reach the printer unfiltered.  Use the lpr -x option or cat filename > /dev/tty0?.

BUGS

       Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion.  If the original PPM maxval was
       greater	than  100,  rescaling  also reduces the image depth.  While the actual RGB values from the ppm file are more or less retained, the
       color palette of the LJ250 may not match the colors on your screen.  This seems to be a printer limitation.

SEE ALSO

       ppm(5)

AUTHOR

       Copyright (C) 1991 by Rick Vinci.

								   26 April 1991						     ppmtosixel(1)
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