regular expression grepping lines with VARIOUS number of blanks Post: 302342647

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regular expression across some lines

I am trying to use regular expression to identify ONLY the commands that hasn't the word "tablespace" within it. a command starts with "create table" and ends with ; (semicolon) example file: create table first tablespace ; create table second ( BBL_CUSTOMER_NAME VARCHAR2(32), a...

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sed not printing lines before a regular expression.

Hey, I found a way to print the lines which is just before a regular expression, not including the expression. sed -n '/regexp/{n;p;}' myfile Now I'm looking for a way to print all lines, exept the regular expression and also the line before the same regular expression. Use code tags.

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Would like to print 3 lines after a regular expression is found in the logfile

I would like to print 3 lines after a regular expression is found in the logfile. I'm using the following code: grep -n "$reg_exp" file.txt |while read LINE ;do i=$(echo $LINE |cut -d':' -f1 ) ;sed -n "$i,$(($i+3))p" file.txt ;done The above code things works fine,but sometimes gives erroneous...

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Perl: How to read from a file, do regular expression and then replace the found regular expression

Hi all, How am I read a file, find the match regular expression and overwrite to the same files. open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat"; open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat"; while (<DESTINATION_FILE>) { # print...

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delete lines matching a regular expression

I have a very large file (over 700 million lines) that has some lines that I need to delete. An example of 5 lines of the file: HS4_80:8:2303:19153:193032 153 k80:138891 HS4_80:8:2105:5544:43174 89 k88:81949 165 k88:81949 323 0 * = 323 0 ...

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Finding lines with a regular expression, replacing them with blank lines

So the tag for this forum says all newbies welcome... All I want to do is go through my file and find lines which contain a given string of characters then replace these with a blank line. I really tried to find a simple command to do this but failed. Here's what I did come up with though: ...

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sed: -e expression #1, char 0: no previous regular expression

Hello All, I'm trying to extract the lines between two consecutive elements of an array from a file. My array looks like: problem_arr=(PRS111 PRS213 PRS234) j=0 while } ] do k=`expr $j + 1` sed -n "/${problem_arr}/,/${problem_arr}/p" problemid.txt ---some operation goes...

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regular expression grouping across multiple lines

cat book.txt book1 price 23 sku 1234 auth Bill book2 sku 1233 price 22 auth John book3 auth Frank price 24 book4 price 25 sku 129 auth Tod import re f = open('book.txt', 'r') text = f.read() f.close() m =...

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Regular expression for 6 digit number present in a line

Hello Team, i have a file test1.txt, in which i have to grep only the 6 digit number from it, Could you pls help in this. $cat test1.txt <description>R_XYZ_1.6 r370956</description> $ grep "\{6\}" test1.txt <description>R_XYZ_1.6 r370956</description> i need output as 370956. ...

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Regular expression to match multiple lines?

Using a regular expression, I would like multiple lines to be matched. By default, a period (.) matches any character except newline. However, (?s) and /s modifiers are supposed to force . to accept a newline and to match any character including a newline. However, the following two perl...

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markdown_py

MARKDOWN_PY(1)						      General Commands Manual						    MARKDOWN_PY(1)

NAME

       markdown_py - a Python implementation of John Gruber's Markdown.

SYNOPSIS

       markdown_py [options] [INPUT_FILE]
       (STDIN is assumed if no INPUT_FILE is given)

OPTIONS

       --version
	      Show program's version number and exit.

       -h, --help
	      Show the help message and exit.

       -f OUTPUT_FILE, --file=OUTPUT_FILE
	      Write output to OUTPUT_FILE. Defaults to STDOUT.

       -e ENCODING, --encoding=ENCODING
	      Encoding for input and output files.

       -q, --quiet
	      Suppress all warnings.

       -v, --verbose
	      Print all warnings.

       -s SAFE_MODE, --safe=SAFE_MODE
	      'replace', 'remove' or 'escape' HTML tags in input.

       -o OUTPUT_FORMAT, --output_format=OUTPUT_FORMAT
	      'xhtml1' (default), 'html4' or 'html5'.

       --noisy
	      Print debug messages.

       -x EXTENSION, --extension=EXTENSION
	      Load extension EXTENSION.

       -n, --no_lazy_ol
	      Observe number of first item of ordered lists.

DESCRIPTION

       Command-line Markdown compiler based on python-markdown module, with extensions support.

AUTHOR

       This manual page was written by Dmitry Shachnev <mitya57@gmail.com>.

																    MARKDOWN_PY(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

regular expression across some lines

Discussion started by: ynixon

2. Shell Programming and Scripting

sed not printing lines before a regular expression.

Discussion started by: Livio

3. Shell Programming and Scripting

Would like to print 3 lines after a regular expression is found in the logfile

Discussion started by: joachimshaun

4. Programming

Perl: How to read from a file, do regular expression and then replace the found regular expression

Discussion started by: jessy83