06-17-2010
I think then that I do not fully understand your requirement. I took it that the number behind prev or Freq or whatever is the frequency or prevalence of the string itself. You seem to be suggesting that the script should look for the frequency of a particular character in that string?
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My files look like this
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If I have a file with the following information
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My file looks something like this
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Hi,
I have a file with more than 28000 records and it looks like below..
>mm10_refflat_ABCD range=chr1:1234567-2345678
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tgtgcacactacacatgactagtatgtgcacactacacatgactagta
.
.
.
.
.
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ggatatgatgatgaactggt
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I have files with hundreds of sequences with frequency values reported as "Freq X" and missing characters represented by a dash ("-"), something like this
>39sample Freq 4
TAGATGTGCCCGTGGGTTTCCCGTCAACACCGGATAGTAGCAGCACTA
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I have this file:
>ID1
AA
>ID2
TTTTTT
>ID-3
AAAAAAAAA
>ID4
TTTTTTGGAGATCAGTAGCAGATGACAG-GGGGG-TGCACCCC
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sed -r '/^>/N;{/^.{,15}$/d}'
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PR(1) General Commands Manual PR(1)
NAME
pr - print file
SYNOPSIS
pr [ option ... ] [ file ... ]
DESCRIPTION
Pr produces a printed listing of one or more files on its standard output. The output is separated into pages headed by a date, the name
of the file or a specified header, and the page number. With no file arguments, pr prints its standard input.
Options apply to all following files but may be reset between files:
-n Produce n-column output.
+n Begin printing with page n.
-b Balance columns on last page, in case of multi-column output.
-d Double space.
-en Set the tab stops for input text every n spaces.
-h Take the next argument as a page header (file by default).
-in Replace sequences of blanks in the output by tabs, using tab stops set every n spaces.
-f Use formfeeds to separate pages.
-ln Take the length of the page to be n lines instead of the default 66.
-m Print all files simultaneously, each in one column.
-n Number the lines of each file.
-on Offset the left margin n character positions.
-sc Separate columns by the single character c instead of aligning them with white space. A missing c is taken to be a tab.
-t Do not print the 5-line header or the 5-line trailer normally supplied for each page.
-wn For multi-column output, take the width of the page to be n characters instead of the default 72.
SOURCE
/sys/src/cmd/pr.c
SEE ALSO
cat(1), lp(1)
PR(1)