This will work as follows: the innermost grep will search for files that have "AAA" and print the filenames. The filenames printed are used by the second grep to search for string "BBB". This grep will also print the filenames. Now the filenames printed by the second grep contain both "AAA" and "BBB". Then the last(outermost) grep will search for "CCC" in the filenames printed by the second grep. The filenames that are printed by the outermost grep contain all three patterns.
I want to search a heap of files but using an either OR or AND condition for two or more strings. How can I do this?
i.e. file1 has the following
file testfile primary
and file2 has this ...
file testfile2 secondary
If I use this ...
find . -type f -exec grep "testfile" {}... (2 Replies)
I have a .txt file which contains several lines of text. I need to write a script program using grep or any other unix tool so as to detect part of the text (words) between / / that begin with the symbol ~.
For example if somewhere in the text appears a webpage address like... (8 Replies)
Hi,
By using shell scripit i have save output in one file. I want to grep two words named CLUSTER and CLUSQMGR from that output file. How to grep that. output file would be having below words
TYPE(QCLUSTER) ALTDATE(2010-05-17)
CLUSTER(QS.CL.MFT1) ... (5 Replies)
How do you negate a literal hyphen/dash in a regex? If it's the first character inside the brackets, then it is read literally.
But if you stick a caret to the left of it, to negate it, then it seems it is no longer read literally. Or whatever, it doesn't work.
Nor does escaping it seem to... (3 Replies)
Queue on node in domain
description :
type : local
max message len : 104857600
max queue depth : 5000
queue depth max event : enabled
persistent msgs : yes
backout threshold : 0
msg delivery seq :... (4 Replies)
Hi,
I want to grep a file if any one (GH, IJ, KL) is not null. If it is null i dont want to pull anything.
cat file | awk '{print ($1)}'
Parameters are : AB=123;CD=456;EF=6789;
cat file | awk '{print ($2)}'
GH=456;IJ=789;KL=1011
eg:
Contents in file:
Parameters are :... (10 Replies)
Hi!
I'm trying to figure out how to find words with X number of doubles, only. I'm searching a dictionary, (one word per line). For instance, if you want to find words containing only one pair of double letters, you could do something like this:
egrep '(.)\1' wordlist.txt |egrep -v '(.)\1.*(.)\2'... (3 Replies)
see I have a text like:
27-MAY 14:00 4 aaa 5.30 0.01
27-MAY 14:00 3 aaa 0.85 0.00
27-MAY 14:00 2 aaa 1.09 0.00
27-MAY 14:00 5 aaa 0.03 0.00
27-MAY 14:00... (3 Replies)
Discussion started by: netbanker
3 Replies
LEARN ABOUT PHP
substr_replace
SUBSTR_REPLACE(3) 1 SUBSTR_REPLACE(3)substr_replace - Replace text within a portion of a stringSYNOPSIS
mixed substr_replace (mixed $string, mixed $replacement, mixed $start, [mixed $length])
DESCRIPTION substr_replace(3) replaces a copy of $string delimited by the $start and (optionally) $length parameters with the string given in $replace-
ment.
PARAMETERS
o $string
- The input string. An array of strings can be provided, in which case the replacements will occur on each string in turn. In
this case, the $replacement, $start and $length parameters may be provided either as scalar values to be applied to each input
string in turn, or as arrays, in which case the corresponding array element will be used for each input string.
o $replacement
- The replacement string.
o $start
- If $start is positive, the replacing will begin at the $start'th offset into $string. If $start is negative, the replacing will
begin at the $start'th character from the end of $string.
o $length
- If given and is positive, it represents the length of the portion of $string which is to be replaced. If it is negative, it rep-
resents the number of characters from the end of $string at which to stop replacing. If it is not given, then it will default to
strlen( $string ); i.e. end the replacing at the end of $string. Of course, if $length is zero then this function will have the
effect of inserting $replacement into $string at the given $start offset.
RETURN VALUES
The result string is returned. If $string is an array then array is returned.
EXAMPLES
Example #1
Simple substr_replace(3) examples
<?php
$var = 'ABCDEFGH:/MNRPQR/';
echo "Original: $var<hr />
";
/* These two examples replace all of $var with 'bob'. */
echo substr_replace($var, 'bob', 0) . "<br />
";
echo substr_replace($var, 'bob', 0, strlen($var)) . "<br />
";
/* Insert 'bob' right at the beginning of $var. */
echo substr_replace($var, 'bob', 0, 0) . "<br />
";
/* These next two replace 'MNRPQR' in $var with 'bob'. */
echo substr_replace($var, 'bob', 10, -1) . "<br />
";
echo substr_replace($var, 'bob', -7, -1) . "<br />
";
/* Delete 'MNRPQR' from $var. */
echo substr_replace($var, '', 10, -1) . "<br />
";
?>
Example #2
Using substr_replace(3) to replace multiple strings at once
<?php
$input = array('A: XXX', 'B: XXX', 'C: XXX');
// A simple case: replace XXX in each string with YYY.
echo implode('; ', substr_replace($input, 'YYY', 3, 3))."
";
// A more complicated case where each replacement is different.
$replace = array('AAA', 'BBB', 'CCC');
echo implode('; ', substr_replace($input, $replace, 3, 3))."
";
// Replace a different number of characters each time.
$length = array(1, 2, 3);
echo implode('; ', substr_replace($input, $replace, 3, $length))."
";
?>
The above example will output:
A: YYY; B: YYY; C: YYY
A: AAA; B: BBB; C: CCC
A: AAAXX; B: BBBX; C: CCC
NOTES
Note
This function is binary-safe.
SEE ALSO str_replace(3), substr(3), String access and modification by character.
PHP Documentation Group SUBSTR_REPLACE(3)