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Top Forums Shell Programming and Scripting Find minimum and maximum values based on column with associative array Post 302983924 by RudiC on Tuesday 18th of October 2016 01:06:43 PM
Old 10-18-2016
How about
Code:
awk '{if ($2 < min[$6] || !min[$6]) min[$6]=$2; if ($3 > max[$6]) {max[$6]=$3; entry[$6]=$0;} next }END{for (i in max) {print min[i], max[i], entry[i]}}'  file
290173 291903 scf6 291091 291903 . + X_047241 T_00113119-4
319914 322529 scf34 322151 322529 . - X_034278 T_00078928-2
1281205 1283255 scf9 1282596 1283255 . + X_056323 T_00138418-2
1360501 1361233 scf25 1361113 1361233 . - X_025043 T_00053809-3
943891 944859 scf29 944814 944859 . - X_029078 T_00064858-3

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LAM(1)							    BSD General Commands Manual 						    LAM(1)

NAME
lam -- laminate files SYNOPSIS
lam [-f min.max] [-s sepstring] [-t c] file ... lam [-p min.max] [-s sepstring] [-t c] file ... DESCRIPTION
The lam utility copies the named files side by side onto the standard output. The n-th input lines from the input files are considered frag- ments of the single long n-th output line into which they are assembled. The name `-' means the standard input, and may be repeated. Normally, each option affects only the file after it. If the option letter is capitalized it affects all subsequent files until it appears again uncapitalized. The options are described below: -f min.max Print line fragments according to the format string min.max, where min is the minimum field width and max the maximum field width. If min begins with a zero, zeros will be added to make up the field width, and if it begins with a `-', the fragment will be left- adjusted within the field. -p min.max Like -f, but pad this file's field when end-of-file is reached and other files are still active. -s sepstring Print sepstring before printing line fragments from the next file. This option may appear after the last file. -t c The input line terminator is c instead of a newline. The newline normally appended to each output line is omitted. To print files simultaneously for easy viewing use pr(1). EXAMPLES
The command lam file1 file2 file3 file4 joins 4 files together along each line. To merge the lines from four different files use lam file1 -S " " file2 file3 file4 Every 2 lines of a file may be joined on one line with lam - - < file and a form letter with substitutions keyed by `@' can be done with lam -t @ letter changes SEE ALSO
join(1), paste(1), pr(1), printf(3) STANDARDS
Some of the functionality of lam is standardized as the paste(1) utility by IEEE Std 1003.2 (``POSIX.2''). HISTORY
The lam utility first appeared in 4.2BSD. BUGS
The lam utility does not recognize multibyte characters. BSD
August 12, 2004 BSD
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