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[123], using the following:
I'm using a wildcard in place of the brackets because you apparently cannot match brackets with a regex (or so I've read while trying to research how to do this). However, this is odd... I would think that:
should work because there has to be at LEAST one digit. However, it's not working. I can only get it to work using:
I'm wondering if the fact that I'm executing this script on a mac has anything to do with it.
Does anyone know a way that I can match the above?
P.S. this is in the bash shell
Last edited by retrovertigo; 07-06-2007 at 05:45 PM..
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)
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;
$hash(223,459) = xxx;
I need a fast way to get all the keys that start with 123..
Meaning I should get
... (5 Replies)
Hi guys
Quick question
Im creating an FTP server and im chrooting each user to there home directory blah blah. Ive also setup scponly so there locked etc.
Im a novice at unix and have just reaslised the primary group of scponly is the username of one of the ftp users... which im sure... (1 Reply)
I'd like to list all userid's on the system that have a .bashrc file in their home directory with a command like "cat /etc/passwd | grep -f", however I'm not quite familiar with using grep. Any suggestions? (2 Replies)
Hi guys,
Pretty new to regex, and i know im doing something wrong here. I'm trying to get a regex command that restricts a string to be 8 characters long, and the first character cannot be 0. Here's what i have so far...
echo "01234" | grep "^{8}*$"
Thanks very much!
-Crawf
... (7 Replies)
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)
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)
This "SHOULD" be a simple question,
but looking through several books has turned up nothing,
so I turn once again to the experts!!
How do you vi a file so that you can see special characters.
I believe my /etc/passwd file is being corrupted during an upgrade process, however the files... (6 Replies)