08-22-2011
Script to make simple recurring ascii file edit
Hi,
I have an ascii file with recurring lines (the file is 36mb so lots of lines) which look like this:
-2.5 -66.324-68.138 935.2 1.953 -0.664 272.617 73.684 -2.428 269.998 0.000
Every 14 lines there is a blank line.
I would like to, for each non-blank line, introduce a space at the 15th character space in the line (i.e. in the above between the '4' and the '-' so I separate the two numbers to give -66.324 -68.138 rather than -66.324-68.138). I want this applying to the first 13 lines, but not the 14th, the next 13 lines but not the 25th, and so on.
Is a short shell script best to sort this? Any help is much appreciated.
Thanks Andy
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LEARN ABOUT DEBIAN
git-stripspace
GIT-STRIPSPACE(1) Git Manual GIT-STRIPSPACE(1)
NAME
git-stripspace - Remove unnecessary whitespace
SYNOPSIS
git stripspace [-s | --strip-comments] < input
DESCRIPTION
Clean the input in the manner used by git for text such as commit messages, notes, tags and branch descriptions.
With no arguments, this will:
o remove trailing whitespace from all lines
o collapse multiple consecutive empty lines into one empty line
o remove empty lines from the beginning and end of the input
o add a missing
to the last line if necessary.
In the case where the input consists entirely of whitespace characters, no output will be produced.
NOTE: This is intended for cleaning metadata, prefer the --whitespace=fix mode of git-apply(1) for correcting whitespace of patches or
files in the repository.
OPTIONS
-s, --strip-comments
Skip and remove all lines starting with #.
EXAMPLES
Given the following noisy input with $ indicating the end of a line:
|A brief introduction $
| $
|$
|A new paragraph$
|# with a commented-out line $
|explaining lots of stuff.$
|$
|# An old paragraph, also commented-out. $
| $
|The end.$
| $
Use git stripspace with no arguments to obtain:
|A brief introduction$
|$
|A new paragraph$
|# with a commented-out line$
|explaining lots of stuff.$
|$
|# An old paragraph, also commented-out.$
|$
|The end.$
Use git stripspace --strip-comments to obtain:
|A brief introduction$
|$
|A new paragraph$
|explaining lots of stuff.$
|$
|The end.$
GIT
Part of the git(1) suite
Git 1.7.10.4 11/24/2012 GIT-STRIPSPACE(1)