or another way to check, when i check for start and keyword1 in the pattern, how can i check that they are close together (e.g., within 50 characters, or 2 lines)? otherwise it does not match the pattern and it should not do the replace
Hi there
I have a file which has the lines
# Serial number for hostid
EXP_SERIAL_=""
These lines could be anywhere in the file as far as line numbers go, I would like replace these two lines with
# Serial number for hostid $var1
EXP_SERIAL_$var1="$var2"
Is there a quick and simple... (6 Replies)
Hi all,
I am trying to replace a few lines with other lines of all files in a directory which contain those few lines.
say - there are some 10 files in a dir having the same 4 lines as 1.txt at the starting
1.txt
line 1
line 2
line 3
line 4
....................................... (1 Reply)
Hi i am trying to replace blank lines with a number 0. I tried the following code
awk '{print NF ? $0: blankrow}' blankrow = "0" file1.prg>file2.prg
however i get the following error: fatal: cannot open file `blankrow' for reading (No such file or directory)
file example:
1
2
3
5
6... (11 Replies)
Hi.. I'm facing a trouble in replacing two blank lines in a file using shell script...
I used sed to search a line and insert two blank lines after the searchd line using the following sed command.
sed "/data/{G;G;}/" filename . In the file, after data tag, two lines got inserted blank lines..... (4 Replies)
i have a huge script that i need to replace a bunch of lines in.
in that script, i have a chunk similar to:
JABABA=$(if ; then
echo afafafa
afafafafaf
afafafafe
fdfdfdfadfadl
fafafafkkkk
fi)
I would like to replace the above chunk with: (1 Reply)
Hi,
I have a file with many lines,
then i have following list of lines(line number 5,12,19,5,and 28) i need to replace these lines of a file with another lines as shown below these text
contains special charecter like= (/:;){}
Line_number Text to replace with
5 abc... (1 Reply)
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:
... (2 Replies)
Hi friends,
This is sed & awk type question.
I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example
###start of input text file ####
abc
def
ghi
1
2
3
4
kjld
random... (3 Replies)
Hi friends,
This is sed & awk type question. It is slightly different from my previous question.
I have a text file which has numbers spread all over the file. I want to sum the series of numbers (but no more than 10 numbers in series) whenever i find it and produce an output file with the... (4 Replies)
Discussion started by: kaaliakahn
4 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)