question about regular expression

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Regular expression question

Hi guys, I need a help with a query. Basically i want to know the difference between (0+01)* and ((0+01)*)* . It seems whatever string can be generated by the first RE can also be generated by second and they should essentially be same. Am i missing something?

2. UNIX for Dummies Questions & Answers

Regular Expression Question

Hello, I'm trying to rename a bunch of files that were named incorrectly. I know a little about regular expressions but I'm not very good at them. Here is the image of the file names: http://i47.tinypic.com/np2gxi.jpg I'm trying to change the 20111116 at the beginning to 20101116 for all...

3. Programming

Perl: How to read from a file, do regular expression and then replace the found regular expression

Hi all, How am I read a file, find the match regular expression and overwrite to the same files. open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat"; open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat"; while (<DESTINATION_FILE>) { # print...

4. UNIX for Dummies Questions & Answers

a question about a regular expression

I like to loop a list of files which named file1, file2, file3, file4, etc if I like to loop them all over for f in file1, file2, file3, file4 do echo "processing" $f done how to use a regular expression to loop file$i instead? Thank you.

5. Shell Programming and Scripting

Easy Perl regular expression question

Hey all! what matching expression might I use to match all characters included in \W, EXCEPT < and > ? for example: @tokens=split(/ ???? /,$string); I've dubiously tried \W but this clips off the first letter of each "token", for some reason ...

6. UNIX for Dummies Questions & Answers

Question on Regular Expression

Folks; Could some one tell me what these 2 regular expressions mean: */(*)/* (\d\d\d\d/\d\d/\d\d/*?)

7. UNIX for Dummies Questions & Answers

Regular Expression question

Folks; I have 3 questions & any help with them would be really appreciated: If i have a list of directories, for example: /fs/pas/2007/4/6/2634210/admdat/examin /fs/pas/2007/4/6/2634210/admdat2/stat /fs/pas/2007/4/6/2634210/admdat3/data /fs/pas/2007/4/6/2634210/im_2/0b.dcm Now; my...

8. UNIX for Dummies Questions & Answers

question (regular expression related)

anyone knows what does this regular expression match for? $3,$.*\1.*\1

9. Shell Programming and Scripting

Regular expression question

hi i need to wipe out something from giving path i have some thing like that : pwd | sed 's/.*foo//' it is working fine when I have path like : /blah/balh1/foo/moo so it erasing me all that comes before the foo including the foo but I have problem when I have dir by the name of...

10. UNIX for Dummies Questions & Answers

Regular Expression Question

Hi - I am trying to ignore the following items from a list. lp0 lp11 lp12 lp14 The following code works fine, but I was wondering if there was a tidier way to write the lp regular expression? egrep -v "lp" Thanks in advance.

LEARN ABOUT CENTOS

ausearch_add_regex

AUSEARCH_ADD_REGEX(3)						  Linux Audit API					     AUSEARCH_ADD_REGEX(3)

NAME

       ausearch_add_regex - use regular expression search rule

SYNOPSIS

       #include <auparse.h>

       int ausearch_add_regex(auparse_state_t *au, const char *expr);

DESCRIPTION

       ausearch_add_regex  adds  one  search condition based on a regular expression to the current audit search expression. The search conditions
       can then be used to scan logs, files, or buffers for something of interest. The regular	expression  follows  the  posix  extended  regular
       expression conventions, and is matched against the full record (without interpreting field values).

       If an existing search expression E is already defined, this function replaces it by (E && this_regexp).

RETURN VALUE

       Returns -1 if an error occurs; otherwise, 0 for success.

SEE ALSO

       ausearch_add_expression(3), ausearch_add_item(3), ausearch_clear(3), ausearch_next_event(3), regcomp(3).

AUTHOR

       Steve Grubb

Red Hat 							     Sept 2007						     AUSEARCH_ADD_REGEX(3)

Shell Programming and Scripting