10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
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
2. UNIX for Beginners Questions & Answers
Here i am writing a script to check&display only the valid mail address from a file
echo "Plz enter the Target file name with path"
read path
if
then
echo "The valid mail address are:"
email=$(grep -E -o "\b+@+\.{2,6}\b" $path )
echo "$email"
fi
The file contains the data like this:... (6 Replies)
Discussion started by: Meeran Rizvi
6 Replies
3. Shell Programming and Scripting
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)
Discussion started by: alex_5161
2 Replies
4. UNIX for Dummies Questions & Answers
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)
Discussion started by: pathunkathunk
3 Replies
5. Shell Programming and Scripting
I have a regex I'd like to implement and I believe it should be working and I have tested it on various websites that have regex testers but it always says the name is invalid.
#!/bin/bash -x
echo Enter the users first and last name.
read name
if... (11 Replies)
Discussion started by: woodson2
11 Replies
6. Shell Programming and Scripting
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)
Discussion started by: suntzu
1 Replies
7. Shell Programming and Scripting
I would like to search strings composed by only one type of charachter for example
only strings composed by the charachter 'b'
is it right?
$egrep '\<(b+)+\>' filename
Could be there some side effects?
Regards. (1 Reply)
Discussion started by: and77
1 Replies
8. UNIX for Dummies Questions & Answers
Can anyone give the detailed explanation on regex search
i want to know the use of regex in sed and awk also......
the operators like ^,.,* ....etc i need it with some example.....kindly help on this.
I gone through the man pages also..but i was not clear......... (1 Reply)
Discussion started by: sivakumar.rj
1 Replies
9. Shell Programming and Scripting
Hi,
I am trying to grep for the following type of string from a document given below:
12637 1239 3356 12956 7004 7004 7004 13381 13381
*> 12.0.1.63 0 7018 21872 ?
* 208.51.134.254 53 0 3549 7018 21872 ?... (1 Reply)
Discussion started by: Legend986
1 Replies
10. Shell Programming and Scripting
Hi,
i want to match a string using perl that has got 5 pluses(+++++).
i am using a function for this.
$str1="+++++";
check($str1,"\\+");
sub check{
$str1=$_;
$str2=$_;
if($str1=~m/^$str2{5}$/){
print "Correct.\n";
}else{
print "Wrong..\n";
... (6 Replies)
Discussion started by: deepakpv
6 Replies
re_comp(3C) Standard C Library Functions re_comp(3C)
NAME
re_comp, re_exec - compile and execute regular expressions
SYNOPSIS
#include <re_comp.h>
char *re_comp(const char *string);
int re_exec(const char *string);
DESCRIPTION
The re_comp() function converts a regular expression string (RE) into an internal form suitable for pattern matching. The re_exec() func-
tion compares the string pointed to by the string argument with the last regular expression passed to re_comp().
If re_comp() is called with a null pointer argument, the current regular expression remains unchanged.
Strings passed to both re_comp() and re_exec() must be terminated by a null byte, and may include NEWLINE characters.
The re_comp() and re_exec() functions support simple regular expressions, which are defined on the regexp(5) manual page. The regular
expressions of the form {m}, {m,}, or {m,n} are not supported.
RETURN VALUES
The re_comp() function returns a null pointer when the string pointed to by the string argument is successfully converted. Otherwise, a
pointer to one of the following error message strings is returned:
No previous regular expression
Regular expression too long
unmatched (
missing ]
too many () pairs
unmatched )
Upon successful completion, re_exec() returns 1 if string matches the last compiled regular expression. Otherwise, re_exec() returns 0 if
string fails to match the last compiled regular expression, and -1 if the compiled regular expression is invalid (indicating an internal
error).
ERRORS
No errors are defined.
USAGE
For portability to implementations conforming to X/Open standards prior to SUS, regcomp(3C) and regexec(3C) are preferred to these func-
tions. See standards(5).
SEE ALSO
grep(1), regcmp(1), regcmp(3C), regcomp(3C), regexec(3C), regexpr(3GEN), regexp(5), standards(5)
SunOS 5.10 26 Feb 1997 re_comp(3C)