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Top Forums Shell Programming and Scripting Read in specific lines in a file Post 302772371 by piynik on Monday 25th of February 2013 08:29:14 AM
Old 02-25-2013
so in that text file, it contains a list of names starting from the 3rd line, of which I don't know how many there will be (different each run), until it ends with an empty line, followed by other lines. let say the next line after the empty line is
Code:
 expected_values: 126

So I want to write a loop, something like

Code:
while read name
do
(some operations using $name)
done <textfile.txt

in each cycle of the loop the names are parsed to a variable $name, so name1 in first cycle, name2 in 2nd cycle and so on until it reaches the empty line.

I hope that gives enough detail in what I am trying to do.
 

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fmt(1)							      General Commands Manual							    fmt(1)

NAME
fmt - format text SYNOPSIS
width] [file...] DESCRIPTION
The command is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the width option. The default width is 72. concatenates the arguments. If none are given, formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. does not fill lines beginning with a period for compatibility with Nor does it fill lines starting with Indentation is preserved in the output and input lines with differing indentation are not joined (unless is used). can also be used as an in-line text filter for the command: reformats the text between the cursor location and the end of the paragraph. Options recognizes the following options: Crown margin mode. Preserve the indentation of the first two lines within a paragraph and align the left margin of each subsequent line with that of the second line. This is useful for tagged paragraphs. Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such "formatted" text, from being unduly combined. Fill output lines to up to width columns. WARNINGS
The width option is acceptable for BSD compatibility, but it may go away in future releases. SEE ALSO
nroff(1), vi(1). fmt(1)
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