02-02-2012
Thanks but File 1 has 10 million lines and File 2 has 60 million lines , can it run faster with the above script
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear Experts,
I have file called file1 in which i am greping a pattern after that i want to next 3 lines when that pattern is matched.
Ex:- file1
USA
UK
India
Africa
Hello
Asia
Europe
Australia
Hello
Peter
Robert
Jo
i want to next 3 lines after matching Hello... (12 Replies)
Discussion started by: naree
12 Replies
2. Shell Programming and Scripting
Hi I have a very long file with 4 columns of numbers for example
1875 1876 12725 12723
13785 13786 4232 4230
13184 13185 ... (2 Replies)
Discussion started by: ananyob
2 Replies
3. Shell Programming and Scripting
Hi folks
I am not allowed to install GNU grep on AIX.
Here my code excerpt:
grep_fatal () {
/usr/sfw/bin/gegrep -B4 -A2 "FATAL|QUEUE|SIGHUP"
}
Howto the same on AIX based machine?
from manual GNU grep
‘--after-context=num’
Print num lines of trailing context after... (4 Replies)
Discussion started by: slashdotweenie
4 Replies
4. Shell Programming and Scripting
Hi,
I have two comma separated files. I would like to see field 1 value of File1 exact match in field 2 of File2. If the value matches, then it should print matched lines from File2. I have achieved the results using cut, paste and egrep -f but I would like to use awk as it is efficient way and... (7 Replies)
Discussion started by: SBC
7 Replies
5. Shell Programming and Scripting
Hello everyone,
I have a little script below:
die "Usage infile outfile reGex" if @ARGV != 3;
($regex) = @ARGV;
open(F,$ARGV) or die "Can't open";
open(FOUT,"+>$ARGV") or die "Can't open";
while (<F>)
{
print FOUT if /$regex/.../$regex/;
}
No matter what I give $regex on the... (2 Replies)
Discussion started by: new bie
2 Replies
6. Shell Programming and Scripting
Hi Guys,
I have file like below, I want to print all lines between test1231233 to its 10 occurrence(till line 41)
test1231233
qwe
qwe
qweq123
test1231233
qwe
qwe
qweq23
test1231233
qwe
qwe
qweq123
test1231233
qwe
qwe
qweq123131 (3 Replies)
Discussion started by: jagnikam
3 Replies
7. Shell Programming and Scripting
I have a file that contains...
Number
--------------------
1
2
3
4
i want to print all the numbers after the hyphen ... (6 Replies)
Discussion started by: ankitknit
6 Replies
8. Shell Programming and Scripting
Hello,
I have two files file 1 and file 2 each having result of a query on certain database tables and need to compare for Col1 in file1 with Col3 in file2, compare Col2 with Col4 and output the value of Col1 from File1 which is a) not present in Col3 of File2 b) value of Col2 is different from... (2 Replies)
Discussion started by: RasB15
2 Replies
9. Shell Programming and Scripting
would like to print everything after matching two patterns AAA and BBB.
output :
CCC
ZZZ
sample data :
AAA
BBB
CCC
ZZZ (4 Replies)
Discussion started by: jhonnyrip
4 Replies
10. Shell Programming and Scripting
In the tab delimited files below I am trying to match $2 in file1 to $2 of file2. If a match is found the awk checks $3 of file2 and if it is greater than 40% and $4 of file2 is greater than 49, the line in file1 is printed. In the desired output line3 of file1 is not printed because $3 off file2... (9 Replies)
Discussion started by: cmccabe
9 Replies
LEARN ABOUT PHP
substr_compare
SUBSTR_COMPARE(3) 1 SUBSTR_COMPARE(3)
substr_compare - Binary safe comparison of two strings from an offset, up to length characters
SYNOPSIS
int substr_compare (string $main_str, string $str, int $offset, [int $length], [bool $case_insensitivity = false])
DESCRIPTION
substr_compare(3) compares $main_str from position $offset with $str up to $length characters.
PARAMETERS
o $main_str
- The main string being compared.
o $str
- The secondary string being compared.
o $offset
- The start position for the comparison. If negative, it starts counting from the end of the string.
o $length
- The length of the comparison. The default value is the largest of the length of the $str compared to the length of $main_str
less the $offset.
o $case_insensitivity
- If $case_insensitivity is TRUE, comparison is case insensitive.
RETURN VALUES
Returns < 0 if $main_str from position $offset is less than $str, > 0 if it is greater than $str, and 0 if they are equal. If $offset is
equal to or greater than the length of $main_str, or the $length is set and is less than 1 (prior to PHP 5.6), substr_compare(3) prints a
warning and returns FALSE.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 5.6.0 | |
| | |
| | $length may now be 0. |
| | |
| 5.1.0 | |
| | |
| | Added the possibility to use a negative $offset. |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
A substr_compare(3) example
<?php
echo substr_compare("abcde", "bc", 1, 2); // 0
echo substr_compare("abcde", "de", -2, 2); // 0
echo substr_compare("abcde", "bcg", 1, 2); // 0
echo substr_compare("abcde", "BC", 1, 2, true); // 0
echo substr_compare("abcde", "bc", 1, 3); // 1
echo substr_compare("abcde", "cd", 1, 2); // -1
echo substr_compare("abcde", "abc", 5, 1); // warning
?>
SEE ALSO
strncmp(3).
PHP Documentation Group SUBSTR_COMPARE(3)