Hi M Gruenstaeudl,
Your specification is a little bit ambiguous. If all three keywords are found in order in an input line more than once (as in the line:
Code:
kw1 kw2 kw3 kw1 kw2 kw3
in durden tyler's sample input), do you just want kw2 to be replaced in the first set of 3 keywords on the line as in the output Aia's perl script and durden tyler's awk script produce:
Code:
kw1 qux kw3 kw1 kw2 kw3
or did you want the 1st occurrence of kw2 to be replaced in each set of 3 keywords:
Hi,
I'm attempting to search, using awk, a pattern range in a file. Something like:
>awk '/first bit of text.../,/...last bit of text/' file
Is it possible to print only the last (or first) occurrence of the pattern range this way?
Thanks for any suggestions.
Al (2 Replies)
HPUX /bin/sh (posix)
I have a file as such
cat dog mouse
deer elk rabbit
mouse rat pig
I would like to replace the second occurrence of mouse in this file with mouse2. The rest of the file has to stay exactly as is. I'm not sure exactly where mouse might be (could be first,second,third... (5 Replies)
I am trying to get rid of some ending tags but I run into some problems.
Ex.
How are you?</EndTag><Begin>It is fine.</Begin><New> Just about
I am trying to get rid of the ending tags, starts with </ and ending with >. (which is </EndTag> and </Begin>)
I tried the following
sed... (2 Replies)
I am looking to get a output of "2 apple found" from the awk command below.
black:34104 tomonorisoejima$ cat tomo
apple apple
black:34104 tomonorisoejima$ awk '/apple/ {count++}END{print count " apple found"}' tomo
1 apple found
black:34104 tomonorisoejima$ (5 Replies)
Hello,
I have a text file like the one found below and wouild like the grab the certain lines after the searched phrase. For example, I'd like to look up "Hello" and once I find the "Hello" section, grab the lines that contain "Text" and stops at the next section.
Input.txt
Example Hello... (8 Replies)
Dear Gents,
Please can you help me.
I have a file with multiple values called ID
ID ( columns 11-24)
INDEX ( column 26 )
STATUS ( columns 91-92)
The ID can be repetead many times to diference each one there is a value called INDEX which difference each time, it increase if the ID is... (10 Replies)
Hi, i have file file.txt with data like:
START
03:11:30 a
03:11:40 b
END
START
03:13:30 eee
03:13:35 fff
END
jjjjjjjjjjjjjjjjjjjjj
START
03:14:30 eee
03:15:30 fff
END
ggggggggggg
iiiiiiiiiiiiiiiiiiiiiiiii
I want the below output
START (13 Replies)
Discussion started by: Jyotshna
13 Replies
LEARN ABOUT PHP
preg_quote
PREG_QUOTE(3) 1 PREG_QUOTE(3)preg_quote - Quote regular expression charactersSYNOPSIS
string preg_quote NULL (string $str, [string $delimiter])
DESCRIPTION preg_quote(3) takes $str and puts a backslash in front of every character that is part of the regular expression syntax. This is useful if
you have a run-time string that you need to match in some text and the string may contain special regex characters.
The special regular expression characters are: . + * ? [ ^ ] $ ( ) { } = ! < > | : -
PARAMETERS
o $str
- The input string.
o $delimiter
- If the optional $delimiter is specified, it will also be escaped. This is useful for escaping the delimiter that is required by
the PCRE functions. The / is the most commonly used delimiter.
RETURN VALUES
Returns the quoted (escaped) string.
CHANGELOG
+--------+--------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+--------------------------------+
| 5.3.0 | |
| | |
| | The - character is now quoted |
| | |
+--------+--------------------------------+
EXAMPLES
Example #1
preg_quote(3) example
<?php
$keywords = '$40 for a g3/400';
$keywords = preg_quote($keywords, '/');
echo $keywords; // returns $40 for a g3/400
?>
Example #2
Italicizing a word within some text
<?php
// In this example, preg_quote($word) is used to keep the
// asterisks from having special meaning to the regular
// expression.
$textbody = "This book is *very* difficult to find.";
$word = "*very*";
$textbody = preg_replace ("/" . preg_quote($word, '/') . "/",
"<i>" . $word . "</i>",
$textbody);
?>
NOTES
Note
This function is binary-safe.
SEE ALSO
PCRE Patterns, escapeshellcmd(3).
PHP Documentation Group PREG_QUOTE(3)