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Top Forums UNIX for Beginners Questions & Answers UNIX shell script for matrix insertion into a file Post 303042125 by jim mcnamara on Sunday 15th of December 2019 11:37:05 PM
Old 12-16-2019
Does the input data ALWAYS have three lines -> two lines of output? It looks like it varies and a date is the key header item.
That means you need to tell us exactly what the data looks like - dates are awful if they are freehand:
ex:
Code:
April 4, 2108
20180404
04/04/18
2018-4-4

are all the same date and checking every possibility is not likely to happen reliably.

We need a couple of sample data input "blocks" to be of any help to you.
 

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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. The output is separated into pages headed by a date, the name of the file or a speci- fied header, and the page number. If there are 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. -h Take the next argument as a page header. -wn For purposes of multi-column output, take the width of the page to be n characters instead of the default 72. -f Use formfeeds instead of newlines to separate pages. A formfeed is assumed to use up two blank lines at the top of a page. (Thus this option does not affect the effective page length.) -ln Take the length of the page to be n lines instead of the default 66. -t Do not print the 5-line header or the 5-line trailer normally supplied for each page. -sc Separate columns by the single character c instead of by the appropriate amount of white space. A missing c is taken to be a tab. -m Print all files simultaneously, each in one column, Inter-terminal messages via write(1) are forbidden during a pr. FILES
/dev/tty? to suspend messages. SEE ALSO
cat(1) DIAGNOSTICS
There are no diagnostics when pr is printing on a terminal. 4th Berkeley Distribution April 29, 1985 PR(1)
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