So a few months ago, I decided to move away from using grep and decided to use egrep in this code that i'm writing.
i figured egrep is more robust than grep.
well, it appears it isn't.
when i used egrep to search the log file for a script that looked like the following, egrep couldn't find the string:
The egrep command I used was:
And this command produced no output. However the grep command is able to pull out the search pattern just fine.
My question is, is there a way around this? I dont want to have to go back to grep. I want egrep to be able to do everything grep does but more. Isn't egrep a more advanced version of grep?
Hi,
The input file "notifications" contains the following string.
FRTP has 149 missing batches
I want to search for :
FRTP has missing batches
As the number 149 is not important and will change.
The commands I have tried.
grep "FRTP has.*missing batches" notifications.txt... (3 Replies)
hi ,
I'm new at unix bash scripting, im playing a little bit with egrep/grep.
I have serveral files and i do a search on those files, like "aki", the result
is many rows outcoming and serveral of them are dubble because aki wil come more than ones in a file, how can i get a result that it... (3 Replies)
Hi
I use arp to get the mac-addresses of my hosts.
# arp -a | grep 192.168.0.
e1000g0 192.168.0.1 255.255.255.255 o 00:00:00:00:00:01
e1000g0 192.168.0.11 255.255.255.255 o 00:00:00:00:00:02
e1000g0 192.168.0.2 255.255.255.255 ... (12 Replies)
Is it possible to use the escape sequence:
\r
to match a line feed in grep/egrep?
I want to use a regexp that crosses over two lines, and it does not seem to be possible. (1 Reply)
Hi All,
Can anyone please explain me the difference between grep, egrep and fgrep with examples.
I am new to unix environment.. Your help is highly appreciated.
Regards,
ravi (2 Replies)
Hi All,
Please i need to know the difference between grep, egrep & grep -i when used to serach through a file.
My platform is SunOS 5.9 & i'm using the korn shell.
Regards,
- divroro12 - (2 Replies)
Dear Friends,
I have a command which can result following output.
Packet is: /var/adm/yyyy/pkt6043
Intended for network : /vob/repo
I would like to retrive
pkt6043 and /vob/repo using single command.
Blue color test will be always contstant and red color text will be dynamic
... (2 Replies)
All,
I have a problem with grep/fgrep/egrep. Basically I am building a 200 times 200 correlation matrix. The entries of this matrix need to be retrieved from another very large matrix (~100G). I tried to use the grep/fgrep/egrep to locate each entry and put them into one file. It looks very... (1 Reply)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
I have a text file.
1) How do I search for x and y?
'Find all lines that contain David and Emily'
2) How do I... (1 Reply)
The $ seems to fail for me. I'm using GNU grep 2.5.4 (that is, nothing out of the ordinary, just what came with my distro) but I can't get the final anchor $ to work for me. (^ works as usual.)
Behavior without anchor:
$ /bin/grep -E 'tium' file
tritium
tertium quid
Expected behavior:
$... (2 Replies)