hi guys
trying to understand what this line means
sed is a stream editor and i understand that, i have a file already selected
i want to edit so i use -e
sed -e
the next stesp is s/$*
s is a subsititute replacement
sed -e s/$*//g
$ is in reference of the last line
/g makes it... (2 Replies)
Hi guys
sed -e "s/$<//g"
the $< can allow me to assign an input value to the variable right?
do the double quotes check the previous context? (1 Reply)
Hi, I am new to UNIX, and am learning from this tutorial : http://www.ee.surrey.ac.uk/Teaching/Unix/index.html
It keeps telling me to files downloaded from the internet (like .txt files) to the directory, and I dont know how to.
How do I add .txt files to my directory? Thanks. (6 Replies)
Hi i just wanted to know is there anyway to log the keystrokes on a remote computer? For example i let my nieces play on my other computer downstairs *my computer and the one downstairs are on a LAN* and i want to see everything they type in to make sure they arent doing anything they are supposed... (1 Reply)
from command prompt I did grep two words on a same line for eg: grep abc | grep xyz and I got tht particular line, but I want to know when I vi that file how to directly search for that particular line? I appreciate if any one can provide answer, thanks in advance (2 Replies)
Say that I want to match any of the following:
abc
def
ghi
The letters will either be "abc", "def", or "ghi", only those three patterns. The numbers will vary, but there will only be numbers between the brackets.
I've only been able to match abc, using the following:
abc.*.
I'm... (1 Reply)
Hi,
Is there any quick way to use pull out keys that match a specific regex pattern?
eg
%hash ;
$hash(123,456) = xxx;
$hash(123,457) = xxx;
$hash(123,458) = xxx;
$hash(223,459) = xxx;
I need a fast way to get all the keys that start with 123..
Meaning I should get
... (5 Replies)
My input contains a single word lines.
From each line
data.txt
prjtestBlaBlatestBlaBla
prjthisBlaBlathisBlaBla
prjthatBlaBladpthatBlaBla
prjgoodBlaBladpgoodBlaBla
prjgood1BlaBla123dpgood1BlaBla123
Desired output -->
data_out.txt
prjtestBlaBla
prjthisBlaBla... (8 Replies)
Good Evening. I'm new to C. Can you please help me.
I'm creating an error checking function, user will input a string, this will check if the input is all alphabet or all letters only. If there is a digit or other special char, it will print Error then ask input from user again.
Here's my... (1 Reply)
Hi Guys,
Could you please kindly explain what exactly the below SED command will do ?
I am quite confused and i assumed that,
sed 's/*$/ /'
1. It will remove tab and extra spaces .. with single space.
The issue is if it is removing tab then it should be Î right ..
please assist.... (3 Replies)
Discussion started by: Nandy
3 Replies
LEARN ABOUT PHP
sql_regcase
SQL_REGCASE(3) 1 SQL_REGCASE(3)sql_regcase - Make regular expression for case insensitive matchSYNOPSIS
string sql_regcase (string $string)
DESCRIPTION
Creates a regular expression for a case insensitive match.
Warning
This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged.
PARAMETERS
o $string
- The input string.
RETURN VALUES
Returns a valid regular expression which will match $string, ignoring case. This expression is $string with each alphabetic character con-
verted to a bracket expression; this bracket expression contains that character's uppercase and lowercase form. Other characters remain
unchanged.
EXAMPLES
Example #1
sql_regcase(3) example
<?php
echo sql_regcase("Foo - bar.");
?>
The above example will output:
[Ff][Oo][Oo] - [Bb][Aa][Rr].
This can be used to achieve case insensitive pattern matching in products which support only case sensitive regular expressions.
NOTES
Note
As of PHP 5.3.0, the regex extension is deprecated in favor of the PCRE extension. Calling this function will issue an E_DEPRECATED
notice. See the list of differences for help on converting to PCRE.
PHP Documentation Group SQL_REGCASE(3)