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Full Discussion: Need help with a sed script
Top Forums UNIX for Dummies Questions & Answers Need help with a sed script Post 302602931 by DGPickett on Tuesday 28th of February 2012 05:10:39 PM
Old 02-28-2012
Not homework, I hope!

Not really a good sed problem. You can do it, but it seems messy. Only by counting can you tell that a \* is opening or closing a protected zone. If you split the line zones into lines you mark to support reassembly, like with a \ just before added end of line, then you can work on the safe lines and avoid the others, then reassemble. So, might be three sed's in a row! What do \*, \b and \i represent? 'i' does not need escape. Sometimes \b is backspace ^H. Are the \ literal in the input file?
 

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LEARN ABOUT DEBIAN

plan9-split

SPLIT(1)						      General Commands Manual							  SPLIT(1)

NAME

       split - split a file into pieces

SYNOPSIS

       split [ option ...  ] [ file ]

DESCRIPTION

       Split reads file (standard input by default) and writes it in pieces of 1000 lines per output file.  The names of the output files are xaa,
       xab, and so on to xzz.  The options are

       -n n   Split into n-line pieces.

       -l n   Synonym for -n n, a nod to Unix's syntax.

       -e expression
	      File divisions occur at each line that matches a regular expression; see regexp(7).  Multiple -e options may appear.   If  a  subex-
	      pression	of  expression is contained in parentheses (...), the output file name is the portion of the line which matches the subex-
	      pression.

       -f stem
	      Use stem instead of x in output file names.

       -s suffix
	      Append suffix to names identified under -e.

       -x     Exclude the matched input line from the output file.

       -i     Ignore case in option -e; force output file names (excluding the suffix) to lower case.

SOURCE

       /src/cmd/split.c

SEE ALSO

       sed(1), awk(1), grep(1), regexp(7)

																	  SPLIT(1)
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