Noob trying to improve Post: 302990728

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Operating Systems OS X (Apple) Noob trying to improve Post 302990728 by RudiC on Tuesday 31st of January 2017 09:06:20 AM

01-31-2017

Registered User

Your first pattern doesn't match for two reasons, of which you found and (roughly) eliminated one (congrats!): As the pattern is anchored at begin-of-line with the [ICODE] ^ [/ICODE, you need to allow for the leading white space in front of the <h1 sub pattern. While you matched any character .* allowing for matches towards line end as well, an exact match with e.g. character classes like [[:blank:]]* should be preferred, allowing matches of spaces and <TAB>s only.
The other reason your pattern fails is quoting. As the sed first parameter, the script, is enclosed by single quotes. So the quotes around 'name' unquote and requote the parameter, factually removing the quotes from the string. Try either allowing for one wild card character ".name." if you're sure no other patterns will match, or use double quotes (with mayhap other side effects on the parameter) around the script including the pattern. Like:

Code:

sed -n "/^[[:blank:]]*<h1 itemprop='name'>For Sale.*$/p" file
            <h1 itemprop='name'>For Sale <span itemprop='brand'>HITACHI </span> <span itemprop='name'>AIRIS 1  Magnet</span></h1></div>

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LEARN ABOUT 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     Split into n-line pieces.

       -e expression
	      File divisions occur at each line that matches a regular expression; see regexp(6).  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

       /sys/src/cmd/split.c

SEE ALSO

       sed(1), awk(1) grep(1), regexp(6)

																	  SPLIT(1)