This code assumes that
1) there is only one occurrence of 'b' per line
2) that f is at the end of the line
Code:
sed 's/^[^b]*//' infile
---------- Post updated at 02:03 PM ---------- Previous update was at 02:00 PM ----------
Code:
$ echo "a b c d e f"
a b c d e f
$ echo "a b c d e f" | sed 's/^[^b]*//'
b c d e f
$ echo "a c b d e f" | sed 's/^[^b]*//'
b d e f
$ echo "a c d b e f" | sed 's/^[^b]*//'
b e f
$
---------- Post updated at 02:06 PM ---------- Previous update was at 02:03 PM ----------
more generic :
Code:
sed 's/^[^b]*\(b.*f\).*/\1/' infile
---------- Post updated at 02:09 PM ---------- Previous update was at 02:06 PM ----------
Or ... depending on your need :
Code:
$ echo "a b d b c f e f" | sed 's/^[^b]*\(b.*f\).*/\1/'
b d b c f e f
$ echo "a b d b c f e f" | sed 's/^[^b]*\(b[^f]*f\).*/\1/'
b d b c f
$ echo "a b d b c f e f" | sed 's/^.*\(b[^f]*f\).*/\1/'
b c f
$ echo "a b d b c f e f" | sed 's/^.*\(b.*f\).*/\1/'
b c f e f
$
I've got a configuration file that is filled with xml text statements for example:
<...../>
<...../>
<...../>
<data id="java-options" value="-server -Djava.security.policy..../>
<...../>
<...../>
<...../>
I want to write a korn shell script that will go to this specific line and add a... (2 Replies)
Hi..
How to search for multiple words in a single line using grep?.
Eg: Jack and Jill went up the hill
Jack and Jill were best friends
Humpty and Dumpty were good friends too
----------
I want to extract the 2nd statement(assuming there are several statements with... (11 Replies)
Hi
Is it possible to do the following in a single command
/usr/xpg4/bin/sed -e '/rows selected/d' /aemu/CALLAUTO/callauto.txt > /aemu/CALLAUTO/callautonew.txt
/usr/xpg4/bin/sed -e '/^$/d' /aemu/CALLAUTO/callautonew.txt > /aemu/CALLAUTO/callauto_new.txt
exit (1 Reply)
Hello,
Need help substituting a particular word in a file having a single line but no newline character at the end.
I was trying to use sed but it doesn't work probably because there is no newline char at the end of the line.
$ cat hlq_detail
/outputs/alvan23/PDFs/bills
$ cat... (5 Replies)
The file contains one line of text followed by a number. I want to take the number X at the end, take it out and display the last X words. X is the key telling me how many words from the end that I want and X will always be less than the number of words, so no problem there.
Example input and... (4 Replies)
FOLKS ,
i have a text file that is generated automatically of an another korn shell script, i want to bring in the fifth line of the text file in to my korn shell script and look for a particular word in the line . Can you all share some thoughts on this one.
thanks...
Venu (3 Replies)
I would like to add a line to the end of a single column text file. How do I go about doing that?
Input:
BEGIN
1
2
3
Output:
BEGIN
1
2
3
END
Thanks! (1 Reply)
I am trying to build a sinkhole for BIND. I created a master zone file for malicious domains and created a separate conf file, but I am stuck.
I have a list of known bd domains that is updated nightly. The file simply contains the list of domains, one on each line:
Bad.com
Bad2.com... (4 Replies)
hi I made this simple script to extract data and pretty much is a list and would like to extract data of two words separated by commas and I would like to make a new text file that would list these extracted data into a list and each in a new line.
Example that worked for me with text file... (5 Replies)
Discussion started by: dandaryll
5 Replies
LEARN ABOUT PHP
round
ROUND(3) 1 ROUND(3)round - Rounds a floatSYNOPSIS
float round (float $val, [int $precision], [int $mode = PHP_ROUND_HALF_UP])
DESCRIPTION
Returns the rounded value of $val to specified $precision (number of digits after the decimal point). $precision can also be negative or
zero (default).
Note
PHP doesn't handle strings like "12,300.2" correctly by default. See converting from strings.
PARAMETERS
o $val
- The value to round
o $precision
- The optional number of decimal digits to round to.
o $mode
- Use one of the following constants to specify the mode in which rounding occurs.
+--------------------+---------------------------------------------------+
| Constant | |
| | |
| | Description |
| | |
+--------------------+---------------------------------------------------+
| | |
| PHP_ROUND_HALF_UP | |
| | |
| | Round $val up to $precision decimal places away |
| | from zero, when it is half way there. Making 1.5 |
| | into 2 and -1.5 into -2. |
| | |
| | |
|PHP_ROUND_HALF_DOWN | |
| | |
| | Round $val down to $precision decimal places |
| | towards zero, when it is half way there. Making |
| | 1.5 into 1 and -1.5 into -1. |
| | |
| | |
|PHP_ROUND_HALF_EVEN | |
| | |
| | Round $val to $precision decimal places towards |
| | the next even value. |
| | |
| | |
|PHP_ROUND_HALF_ODD | |
| | |
| | Round $val to $precision decimal places towards |
| | the next odd value. |
| | |
+--------------------+---------------------------------------------------+
RETURN VALUES
The rounded value
EXAMPLES
Example #1
round(3) examples
<?php
echo round(3.4); // 3
echo round(3.5); // 4
echo round(3.6); // 4
echo round(3.6, 0); // 4
echo round(1.95583, 2); // 1.96
echo round(1241757, -3); // 1242000
echo round(5.045, 2); // 5.05
echo round(5.055, 2); // 5.06
?>
Example #2
$mode examples
<?php
echo round(9.5, 0, PHP_ROUND_HALF_UP); // 10
echo round(9.5, 0, PHP_ROUND_HALF_DOWN); // 9
echo round(9.5, 0, PHP_ROUND_HALF_EVEN); // 10
echo round(9.5, 0, PHP_ROUND_HALF_ODD); // 9
echo round(8.5, 0, PHP_ROUND_HALF_UP); // 9
echo round(8.5, 0, PHP_ROUND_HALF_DOWN); // 8
echo round(8.5, 0, PHP_ROUND_HALF_EVEN); // 8
echo round(8.5, 0, PHP_ROUND_HALF_ODD); // 9
?>
Example #3
$mode with precision examples
<?php
/* Using PHP_ROUND_HALF_UP with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_UP); // 1.6
echo round( 1.54, 1, PHP_ROUND_HALF_UP); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_UP); // -1.6
echo round(-1.54, 1, PHP_ROUND_HALF_UP); // -1.5
/* Using PHP_ROUND_HALF_DOWN with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_DOWN); // 1.5
echo round( 1.54, 1, PHP_ROUND_HALF_DOWN); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_DOWN); // -1.5
echo round(-1.54, 1, PHP_ROUND_HALF_DOWN); // -1.5
/* Using PHP_ROUND_HALF_EVEN with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_EVEN); // 1.6
echo round( 1.54, 1, PHP_ROUND_HALF_EVEN); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_EVEN); // -1.6
echo round(-1.54, 1, PHP_ROUND_HALF_EVEN); // -1.5
/* Using PHP_ROUND_HALF_ODD with 1 decimal digit precision */
echo round( 1.55, 1, PHP_ROUND_HALF_ODD); // 1.5
echo round( 1.54, 1, PHP_ROUND_HALF_ODD); // 1.5
echo round(-1.55, 1, PHP_ROUND_HALF_ODD); // -1.5
echo round(-1.54, 1, PHP_ROUND_HALF_ODD); // -1.5
?>
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.3.0 | |
| | |
| | The $mode parameter was introduced. |
| | |
| 5.2.7 | |
| | |
| | The inner workings of round(3) was changed to |
| | conform to the C99 standard. |
| | |
+--------+---------------------------------------------------+
SEE ALSO ceil(3), floor(3), number_format(3).
PHP Documentation Group ROUND(3)