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Shell Programming and Scripting
Count math using awk
Post 302928250 by justbow on Wednesday 10th of December 2014 08:26:28 AM
12-10-2014
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variableStep chrom=Uextra span=25
201 0.5952
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LEARN ABOUT REDHAT
dd
DD(1) FSF DD(1) NAME
dd - convert and copy a file SYNOPSIS
dd [OPTION]... DESCRIPTION
Copy a file, converting and formatting according to the options. bs=BYTES force ibs=BYTES and obs=BYTES cbs=BYTES convert BYTES bytes at a time conv=KEYWORDS convert the file as per the comma separated keyword list count=BLOCKS copy only BLOCKS input blocks ibs=BYTES read BYTES bytes at a time if=FILE read from FILE instead of stdin obs=BYTES write BYTES bytes at a time of=FILE write to FILE instead of stdout seek=BLOCKS skip BLOCKS obs-sized blocks at start of output skip=BLOCKS skip BLOCKS ibs-sized blocks at start of input --help display this help and exit --version output version information and exit BLOCKS and BYTES may be followed by the following multiplicative suffixes: xM M, c 1, w 2, b 512, kB 1000, K 1024, MB 1,000,000, M 1,048,576, GB 1,000,000,000, G 1,073,741,824, and so on for T, P, E, Z, Y. Each KEYWORD may be: ascii from EBCDIC to ASCII ebcdic from ASCII to EBCDIC ibm from ASCII to alternated EBCDIC block pad newline-terminated records with spaces to cbs-size unblock replace trailing spaces in cbs-size records with newline lcase change upper case to lower case notrunc do not truncate the output file ucase change lower case to upper case swab swap every pair of input bytes noerror continue after read errors sync pad every input block with NULs to ibs-size; when used with block or unblock, pad with spaces rather than NULs AUTHOR
Written by Paul Rubin, David MacKenzie, and Stuart Kemp. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for dd is maintained as a Texinfo manual. If the info and dd programs are properly installed at your site, the com- mand info dd should give you access to the complete manual. dd (coreutils) 4.5.3 February 2003 DD(1)