You probably confuse "regexps" with "shell regexps" (aka "file globs"). "Regexp" is what commands like sed, awk, grep, etc. use. The shell (and hence "find" uses only "file globs", which are a lot simpler and less sophisticated.
What you can do is to use "find" to pre-sort the files you are interested in and then filter this output through "grep" or a similar tool using regexps, for instance:
Note the difference between "*\.c" (file glob, read by shell) and the regexp grep works with.
You can also use "find" with an "-exec" clause to send every file name to a regexp-capable program. "Find" will use the return value (=error level) of that program to determine if it should be included in the result set (=printed) or not. This probably will result in a lot more overhead because the external program is called for every single filename instead of once for the pipeline in the above example.
I hope this helps.
bakunin
PS: As you seem to be a bit unsure about the syntax of "find" you might want to read this article where i explained it in some detail.
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Hi.
Note that with the regex option in find, one needs to match the entire path. Matching arbitrary strings with a regex requires .*, not a stand-alone *:
Best wishes ... cheers, drl
Thanks for the help. I got the output as expected , and now I have more than one option to achieve that.
I am still not clear on one thing though. Why can not we use shortcuts for the regular expression available- (with grep -E here)? For instance - \d for all numbers , \w for all alphanumerics . Please suggest.
I have files:
sum_<INPUT FILENAME>.YYYYMMDDhhmmss.csv
and
sum_details_<INPUT FILENAME>.YYYYMMDDhhmmss.csv
I have no idea, what is input filename, but in the code I would like to catch them in case
I process them in the loop above case statement
for *.${Today}.*.txt... (3 Replies)
Hi Gurus,
I need to identify the file with below format:
ABC20110101.DAT
ABCD2011010103.DAT
If I use ABC*\.DAT, it get two file. I want to get file after "ABC' then number, the ".DAT".
I tried
ABC* but it doesn't work.
Thanks in advance. (9 Replies)
Hi all
I have a list of file names in array. But this file names are not exact. so i want to search whether a file exists or not using regular expression.
code snippet:
if ;
then
echo "File exists"
else
echo "File does not exits"
fi
over here "*EQST*" should be treated as a regular... (4 Replies)
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... (1 Reply)
Hello everyone,
first post here, trying to learn scripting on my own and this forum as been really helpful so far. I made few little scripts working great but I m facing some problems with RE.
I have a bunch of files in many subdirectories called *001.ext *002.ext OR simple *.ext or *01.ext... (7 Replies)
Hi,
in the cobol copy books is there any regular expressions to be used in awk to fetch the length of each columns?
below mentioned are the examples.
Copy Book Sample
01 tablename.
02 group header.
03 col1 s9(10)V99.
03 Col2 s9(10)V9(3).
03 Col3 XXXX
02... (7 Replies)
I'm trying to math all class references in a C++ file using grep with regular expression. I'm trying to know if a specific include is usuless or not, so I have to know if there is a refence in cpp.
I wrote this RE that searches for a reference from class ABCZ, but unfortunately it isn't working... (0 Replies)
I suspect this is commonly done, but haven't found the right combination of search terms to find the answer.
I want to grep for lines in .cpp files that contain only 1 '=' sign in an if statement. e.g.,
if (a = b) -- find this
if (a==b) -- don't find this
My attempt:
egrep... (7 Replies)
I am trying to test to see if the hostname of the computer I'm on starts with ne1dxdb - it can contain any characters after that. I have the following code, but it's not working - it's not falling into the if statement. Any ideas?
boxname="unknown"
function get_hosttype {
... (4 Replies)
Hi,
I want to find the files available in a directory /var/user/*/*/data/.
I tried using the command "find /var/user/ -path '*/*/data/ -name '*' -type f" it says find: 0652-017 -path is not a valid option and then i tried using "find /var/user/ -name '*/*/data/*' -type f" but its not... (3 Replies)