I have to merge two files:
The files are having the same format like
A0this is first line
TOlast line
silmilarly other lines.
I have to search for A0 line in the second file also and then put the data in the third file under A0 heading ,then for A1 and so on.
A0 portion will be treminated... (1 Reply)
Hi Friends,
Can any one help me with merging these file based on two columns :
File1:
A|123|99|SAMS
B|456|95|GEORGE
D|789|85|HOVARD
File2:
S|123|99|NANcY|6357
S|123|99|GREGRO|83748
A|456|95|HARRY|827|somers
S|456|95|ANTONY|546841|RUDOLPH|7263
B|456|95|SMITH|827|BOISE STATE|834... (3 Replies)
Hi
I have to join two files based on 1st column where 4th column of a2.txt=at and take 2nd column of a1.txt and 3rd column of a2.txt and check against source files ,if matches list those source file names.
a1.txt
a1|20090809|20090810
a2|20090907|20090908
a2.txt
a1|d|file1.txt|at... (9 Replies)
Hi,
On a similar subject, the following. I have two files:
file1.txt
dbSNP_rsID,Chromosome,Position,Gene
rs10399749,chr. 01,45162,?
rs4030303,chr. 01,72434,?
rs4030300,chr. 01,72515,?
rs940550,chr. 01,78032,?
rs13328714,chr. 01,81468,?
rs11490937,chr. 01,222077,?
rs6683466,chr.... (5 Replies)
Hi,
I want to merge the two files based on the key file's columns.
The key file:
DATE~DATE
HOUSE~IN_HOUSE
CUST~IN_CUST
PRODUCT~PRODUCT
ADDRESS~CUST_ADDR
BASIS_POINTS~BASIS_POINTS
...
The other 2 files are From_file & To_file -
The From_file:
DATE|date/time|29|9 ... (9 Replies)
I have a requirement where in i need to select records right below the search criteria
qwertykeyboard white
10 20 30
30 40 50
60 70 80
qwertykeyboard black
40 50 60
70 90 100
qwertykeyboard and white are headers separated by a tab.
when i execute my script..i would be searching... (4 Replies)
Hi, I am trying to selectively merge two files based on keys reported in the 1st column.
File1:
#file1-header1
file1-header2
111 qwe rtz uio
198 asd fgh jkl
165 yxc
789 poi uzt rew
89 lkj
File2:
#file2-header2
file2-header2
165 ghz nko2 ... (2 Replies)
Hi,
I am struggling with the an awk command to merge two files based on a common key.
I want to append the value from File2 ($2) onto the end of File1 where $1 from each file matches - If no match then nothing is apended
File1
COL1|COL2|COL3|COL4|COL5|COL6|COL7... (3 Replies)
Hello , I have several files which are looking similar to :
file01.txt
keyA001 350 X string001 value001
keyA001 450 X string002 value007
keyA001 454 X string002 value004
keyA001 500 X string003 value005
keyA001 255 X string004 value006
keyA001 388 X string005 value008
keyA001 1278 X... (4 Replies)
I thought I had this figured out but was wrong so am humbly asking for help.
The task is to add an additional column to FILE 1 based on records in FILE 2.
The key is in COLUMN 1 for FILE 1 and in COLUMN 1 OR COLUMN 2 for FILE 2.
I want to add the third column from FILE 2 to the beginning of... (8 Replies)
Discussion started by: andmal
8 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)