Hi Experts,
I want to print the lines whose third field in non-empty/blank space.
i.e.
INPUT FILE/B]
dcdccghjrry0yd cont
dcdccttrk820529 cont rdekedfsSCr
dcdccttrdky2d0y cont rdekedfsSC2 ... (3 Replies)
Hi experts
I want the proper argument to the grep command so that I need to skip the first few lines(say first 10 lines) and print all the remaining instances of the grep output.
I tried to use grep -m 10 "search text" file*. But this gives the first 10 instances(lines) of the search string.... (7 Replies)
Hi Experts,
Need help on printing of numbers, which are missing in the range.
Pls find the details below
Input
1000000002
1000000007
1234007940
1234007946
Output
1000000003
1000000004
1000000005
1000000006
1234007941 (2 Replies)
I've been trying to get the syntax right so I can echo a $var and then text around it or after it. It either wont display text or $var or one overwrites the other at the beginning of the line. Trying to do something like this.
var=1
echo $var"+1.1"
#output expected 1+1.1
Its an older... (3 Replies)
Hello all.
I can not remember the command to extract a variable from the date command.
Basically what I need to do is to store the values of date in variable and rearrange them. I can not remember the command or the syntax to do so.
so..
date
Mon Mar 8 06:57:19 GMT 2010
$1 $2 ... (12 Replies)
I have email headers that look like the following. In the end I would like to accomplish sending each email address to its own variable, such as:
user1@domain.com='user1@domain.com'
user2@domain.com='user2@domain.com'
user3@domain.com='user3@domain.com'
etc...
I know the sed to get rid of... (11 Replies)
Hi all,
i am trying to count the number of logical processors from the below output:
# print_manifest | grep "logical processors"
8 cores, 16 logical processors per socket
2 logical processors (2 per socket)
i just want to have below output :
16
2
also... (11 Replies)
Hi All,
I 'm matching two files based on the first 2 columns and then populate other fields along with subtraction of few fields.
I have managed to get the output. However, is there a easier way in formatting the output as shown below instead of using additional printf for getting fixed width... (4 Replies)
Please help me to use echo or printf type of command to print some value from variable within double quotes - I want to print the double quote ( " ") also.
I tried
#!/bin/bash
VALUE=some_value
echo '{"value" : "$VALUE"}'
I was expecting the above script would produce ..
{"value" :... (3 Replies)
Discussion started by: atanubanerji
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)