can i do this? i am learning this on my own..and from the book..simple unix i am not sure if the syntax would work
if
statement
then
statement
do or for or while
statement
done
else
statement
fi....
I dont know how else to explain that...I hope I... (2 Replies)
I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly:
if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)
Folks! Anyone please explain the behavior of this program step by step. Thanks.
#! /usr/bin/perl
$testfile = "./testfile2";
for ( $i = 1, $i <= 5, $i++) {
open ($FILE, ">", $testfile);
print ($FILE "Output 1 \n");
close ($FILE);
}
print "The value of (4 * 2) / 2 is ";
print (4 * 2)... (1 Reply)
Hello Unix graduates,
I have gone through 50 posts here in this Unix.com, out of which 35-40 are answered with regex.. Regex is always been a problem for me. :wall:
I have gone through few URLs still it doesn't help me to reach what you guys are.. :confused:
How to get skilled on... (1 Reply)
I have a file of protein sequences with headers (my source file). Based on a list of IDs (which are included in some of the headers), I'd like to print out only the specified sequences, with only the ID as header.
In other words, I'd like to search source.txt for the terms in IDs.txt, and print... (3 Replies)
Hello All,
I am a beginner in C, although I believe my learning curve is rather steep.
I would like to know if any of you would have some recommendations with some learning materials to become a good C developer.
I am particularly thinking about some CBT courses or some good Quizz that would... (2 Replies)
I am not a big expert in regex and have just little understanding of that language.
Could you help me to understand the regular Perl expression:
^(?!if\b|else\b|while\b|)(?:+?\s+){1,6}(+\s*)\(*\) *?(?:^*;?+){0,10}\{
------
This is regex to select functions from a C/C++ source and defined in... (2 Replies)
I'm trying to get some exclusions into our sendmail regular expression for the K command. The following configuration & regex works:
LOCAL_CONFIG
#
Kcheckaddress regex -a@MATCH
+<@+?\.++?\.(us|info|to|br|bid|cn|ru)
LOCAL_RULESETS
SLocal_check_mail
# check address against various regex... (0 Replies)
Discussion started by: RobbieTheK
0 Replies
LEARN ABOUT PHP
mb_regex_set_options
MB_REGEX_SET_OPTIONS(3) 1 MB_REGEX_SET_OPTIONS(3)mb_regex_set_options - Set/Get the default options for mbregex functions
SYNOPSIS
string mb_regex_set_options ([string $options = mb_regex_set_options()])
DESCRIPTION
Sets the default options described by $options for multibyte regex functions.
PARAMETERS
o $options
- The options to set. This is a string where each character is an option. To set a mode, the mode character must be the last one
set, however there can only be set one mode but multiple options.
Regex options
+-------+-------------------------------+---+---+
|Option | | | |
| | | | |
| | Meaning | | |
| | | | |
+-------+-------------------------------+---+---+
| i | | | |
| | | | |
| | Ambiguity match on | | |
| | | | |
| x | | | |
| | | | |
| | Enables extended pattern form | | |
| | | | |
| m | | | |
| | | | |
| | | | |
| | '.' matches with newlines | | |
| | | | |
| s | | | |
| | | | |
| | | | |
| | '^' -> 'A', '$' -> '' | | |
| | | | |
| p | | | |
| | | | |
| | Same as both the m and s | | |
| | options | | |
| | | | |
| l | | | |
| | | | |
| | Finds longest matches | | |
| | | | |
| n | | | |
| | | | |
| | Ignores empty matches | | |
| | | | |
| e | | | |
| | | | |
| | eval(3) resulting code | | |
| | | | |
+-------+-------------------------------+---+---+
Regex syntax modes
+-----+----------------------------+---+---+
|Mode | | | |
| | | | |
| | Meaning | | |
| | | | |
+-----+----------------------------+---+---+
| j | | | |
| | | | |
| | Java (Sun java.util.regex) | | |
| | | | |
| u | | | |
| | | | |
| | GNU regex | | |
| | | | |
| g | | | |
| | | | |
| | grep | | |
| | | | |
| c | | | |
| | | | |
| | Emacs | | |
| | | | |
| r | | | |
| | | | |
| | Ruby | | |
| | | | |
| z | | | |
| | | | |
| | Perl | | |
| | | | |
| b | | | |
| | | | |
| | POSIX Basic regex | | |
| | | | |
| d | | | |
| | | | |
| | POSIX Extended regex | | |
| | | | |
+-----+----------------------------+---+---+
RETURN VALUES
The previous options. If $options is omitted, it returns the string that describes the current options.
SEE ALSO mb_split(3), mb_ereg(3), mb_eregi(3).
PHP Documentation Group MB_REGEX_SET_OPTIONS(3)