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Top Forums Shell Programming and Scripting replace block of text with content of another file Post 302425796 by ripat on Sunday 30th of May 2010 10:02:31 AM
Old 05-30-2010
Nice! Thank you.

---------- Post updated at 04:02 PM ---------- Previous update was at 02:51 PM ----------

The following also works :

Code:
awk 'NR==FNR{a[NR]=$0;next}/start/{f=1;print;for (i in a) print a[i]}/end/{f=0}!f' file2 file1

I benchmarked the two methods and the "getline / redirection" thing seems to be much faster on large files. Something like 5 times faster on a large file2 file (18.000 lines)
 

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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 comment character (default #). -c, --comment-lines Prepend comment character and blank to each line. Lines will automatically be terminated with a newline. On empty lines, only the comment character will be prepended. 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 1.8.5.3 01/14/2014 GIT-STRIPSPACE(1)
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