I needed to extract some specific characters from a string based on user input. For example: After the script executes the user enters the following details:
So I wrote a script as below:
But it is throwing error for incorrect usage of cut command. Can anyone please help me in completing the script?
Thanks in advance,
Chandan
Last edited by Scrutinizer; 04-14-2015 at 02:02 PM..
Hi,
I need to extract the uncommon (better say incremental) part from 2 files say file_1 and file_2.
file_2 contains everything that is in file_1. That is file_2 has been created internally somehow :
cat file_1 temp_file > file_2
My objective is to extract the temp_file part from... (2 Replies)
Hi,
I was wondering if there is an easy way to strip off the required basename. I have a script called apb0110021.sh and the contents of the script are
typeset -u MScript=`basename $0 | cut -d. -f1`
scriptname=sys.Audit.ksh
parms="PROJECT1 dsAudit $MScript 1 BEGIN"
$SCRIPTS/$scriptname... (3 Replies)
Hi all,
I have to extract only the second part of a database column (VARCHAR) and the value is seperated by a "~"
xyz~
chxyz36r~
abder~000082685
mnops~000083554
fulfil302~00026
Above are some examples of the values and for each record I have to extract the value after "~" , if there is a... (8 Replies)
Hi,
I am trying to extract part of a line using "awk". My requirement is to extract the value $6 (which is the last parameter) from a line. As the sixth value contains some space, i am getting only part of the string. so i am trying to extract from $6 to the end of the buffer.
How to do it... (7 Replies)
Hi Guys,
I have a very large XML feed (2.7 MB) which crashes the server at the time of parsing. Now to reduce the load on the server I have a cron job running every 5 min.'s. This job will get the file from the feed host and keep it in the local machine.
This does not solve the problem as... (9 Replies)
Hi,
I have a file few hundred MB's with text like one below in single line.
20091117 abc xyg 20091117 def ghi 20091118 ppp ttt 20091118 zzz zzz xxx
I need to extract part of line from 1st occurence of pattern 20091117
till first occurence of another pattern 20091118.
I tried... (3 Replies)
I have the code
message={TP=2012:09:23:00:00:00:GMT,SD=2012:09:23:00:00:00:GMT,SP=2,FT=CCGT,FG=3605}
I want to extract the FG=3605 parts of this. Please help. I am trying to do this using awk or unix. (5 Replies)
I have a string:
2015-04-16 07:30:05,625000 +0900 xxxx.com
I just want to extract the time from the above line I am using the below syntax
x=~ /(.*) (\d+)\:(\d+)\:(\d+),(.*)\.com/
$time = $2 . ':' . $3 . ':' . $4;
print $time
But it is not working. Can some1 please help (2 Replies)
Hi All,
I have log files as below.
log1.txt
<table name="content_analyzer" primary-key="id">
<type="global" />
</table>
<table name="content_analyzer2" primary-key="id">
<type="global" />
</table>
Time taken: 1.008 seconds
ID = gd54321bbvbvbcvb
<table name="content_analyzer"... (7 Replies)
Discussion started by: ROCK_PLSQL
7 Replies
LEARN ABOUT PHP
substr
SUBSTR(3) 1 SUBSTR(3)substr - Return part of a stringSYNOPSIS
string substr (string $string, int $start, [int $length])
DESCRIPTION
Returns the portion of $string specified by the $start and $length parameters.
PARAMETERS
o $string
- The input string. Must be one character or longer.
o $start
- If $start is non-negative, the returned string will start at the $start'th position in $string, counting from zero. For
instance, in the string ' abcdef', the character at position 0 is ' a', the character at position 2 is ' c', and so forth. If
$start is negative, the returned string will start at the $start'th character from the end of $string. If $string is less than or
equal to $start characters long, FALSE will be returned.
Example #1
Using a negative $start
<?php
$rest = substr("abcdef", -1); // returns "f"
$rest = substr("abcdef", -2); // returns "ef"
$rest = substr("abcdef", -3, 1); // returns "d"
?>
o $length
- If $length is given and is positive, the string returned will contain at most $length characters beginning from $start (depend-
ing on the length of $string). If $length is given and is negative, then that many characters will be omitted from the end of
$string (after the start position has been calculated when a $start is negative). If $start denotes the position of this trunca-
tion or beyond, false will be returned. If $length is given and is 0, FALSE or NULL, an empty string will be returned. If
$length is omitted, the substring starting from $start until the end of the string will be returned.
Example #2
Using a negative $length
<?php
$rest = substr("abcdef", 0, -1); // returns "abcde"
$rest = substr("abcdef", 2, -1); // returns "cde"
$rest = substr("abcdef", 4, -4); // returns false
$rest = substr("abcdef", -3, -1); // returns "de"
?>
RETURN VALUES
Returns the extracted part of $string; or FALSE on failure, or an empty string.
CHANGELOG
+--------------+---------------------------------------------------+
| Version | |
| | |
| | Description |
| | |
+--------------+---------------------------------------------------+
|5.2.2 - 5.2.6 | |
| | |
| | If the $start parameter indicates the position |
| | of a negative truncation or beyond, false is |
| | returned. Other versions get the string from |
| | start. |
| | |
+--------------+---------------------------------------------------+
EXAMPLES
Example #3
Basic substr(3) usage
<?php
echo substr('abcdef', 1); // bcdef
echo substr('abcdef', 1, 3); // bcd
echo substr('abcdef', 0, 4); // abcd
echo substr('abcdef', 0, 8); // abcdef
echo substr('abcdef', -1, 1); // f
// Accessing single characters in a string
// can also be achieved using "square brackets"
$string = 'abcdef';
echo $string[0]; // a
echo $string[3]; // d
echo $string[strlen($string)-1]; // f
?>
Example #4
substr(3) casting behaviour
<?php
class apple {
public function __toString() {
return "green";
}
}
echo "1) ".var_export(substr("pear", 0, 2), true).PHP_EOL;
echo "2) ".var_export(substr(54321, 0, 2), true).PHP_EOL;
echo "3) ".var_export(substr(new apple(), 0, 2), true).PHP_EOL;
echo "4) ".var_export(substr(true, 0, 1), true).PHP_EOL;
echo "5) ".var_export(substr(false, 0, 1), true).PHP_EOL;
echo "6) ".var_export(substr("", 0, 1), true).PHP_EOL;
echo "7) ".var_export(substr(1.2e3, 0, 4), true).PHP_EOL;
?>
The above example will output:
1) 'pe'
2) '54'
3) 'gr'
4) '1'
5) false
6) false
7) '1200'
ERRORS /EXCEPTIONS
Returns FALSE on error.
Example #5
<?php
var_dump(substr('a', 1)); // bool(false)
?>
SEE ALSO strrchr(3), substr_replace(3), preg_match(3), trim(3), mb_substr(3), wordwrap(3), String access and modification by character.
PHP Documentation Group SUBSTR(3)