#1 specific pattern causing appcrash

[Anonymous]

C:\install>mgrep -i "\@\@.size on disk" get_install_consumption.log

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

Problem signature:
Problem Event Name: APPCRASH
Application Name: mgrep.exe
Application Version: 0.0.0.0
Application Timestamp: 5295de2b
Fault Module Name: mgrep.exe
Fault Module Version: 0.0.0.0
Fault Module Timestamp: 5295de2b
Exception Code: 40000015
Exception Offset: 000108f2
OS Version: 6.1.7601.2.1.0.18.10
Locale ID: 1033
Additional Information 1: d860
Additional Information 2: d860826b86c5b47e89f20a7c2a9449ff
Additional Information 3: d2d2
Additional Information 4: d2d2c268dae3c8de889a2e1c5a689b43

[Anonymous]

this was on Windows server 2008 R2 Enterprise service pack 1

I was attempting to use an OR in a pattern match similar to the following
egrep -i "\@\@\@+|size on disk"

[Anonymous]

strange, this site is removing two asterisks when displaying . so (star)(dot)(star) is what I am attempting to use, which wouldn't act as an or any way

[Peter Istvan Lenard]

Hi, sorry, I have some trouble finding out what the problematic pattern was exactly.

According to the description, this is the pattern that caused the crash:

C:\install>mgrep -i "\@\@.size on disk" get_install_consumption.log

You wrote that "site is removing two asterisks when displaying ." Did you mean this instead, then?

C:\install>mgrep -i "\@\@*.*size on disk" get_install_consumption.log

(Note: I am using backtick (`) for formatting the command line here - "Code Block" formatting indeed does not work. Please try to use backtick in your replies.)

[Peter Istvan Lenard]

Regarding the OR-expression you mentioned:

egrep -i "\@\@\@+|size on disk"

I don't think @ demanded an escaping - it is not a special character as I remember. The OR, however, needs to be escaped for grep/mgrep. So something like:

mgrep -i "@@@+\|size on disk"

would be an equivalent of the egrep command line mentioned above.

(I haven't checked the usage of +, yet.)

[Peter Istvan Lenard]

Also, could you post a few example lines that you would like to capture? (Again, please use backticks (`).) Thanks.

[Anonymous]

attaching the file I am aggregating using sysinternals du
I want to aggregate the break lines @@@ and those containing size on disk.. to get output like the last command below... egrep

your command did work for me
mgrep -i "\@\@\@+|size on disk" get_install_consumption.log

You are correct the command causing the error.. I'm trying escaping with back ticks..
mgrep -i "\@\@*.*size on disk"

egrep -i "\@\@+|size on disk" get_install_consumption.log

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Size on disk: 216,014,283 bytes
Size on disk: 350,277,476 bytes
Size on disk: 98,064,573 bytes
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Size on disk: 216,015,425 bytes
Size on disk: 89,881,845 bytes
Size on disk: 562,010,244 bytes
Size on disk: 350,277,476 bytes
Size on disk: 98,064,573 bytes
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Size on disk: 217,248,169 bytes
Size on disk: 89,881,845 bytes
Size on disk: 562,010,244 bytes
Size on disk: 350,277,476 bytes
Size on disk: 98,064,573 bytes
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Size on disk: 300,208,357 bytes
Size on disk: 87,018,365 bytes
Size on disk: 562,010,244 bytes
Size on disk: 350,450,338 bytes
Size on disk: 98,064,573 bytes
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

[Peter Istvan Lenard]

Thanks for the input - I managed to reproduce the crash with the attached file + the following command:

mgrep -i "\@\@*.*size on disk" get_install_consumption.log

I will try to fix it as soon as possible.

In the meanwhile, this is what I recommend for you to use:

mgrep "@@\|Size on disk" get_install_consumption.log

Ie. lines containing at least two @'s OR the string "Size on disk".

I believe this is the simplest pattern for your purpose.

[Anonymous]

Yeah, once I got your OR syntax I ended up with something that will work great until the year 3000 :)
mgrep -i "\/2+|[0-9][0-9]\:+|\@\@\@+|size on disk" get_install_consumption.log

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Fri 10/30/2015
11:37 AM
Size on disk: 300,210,626 bytes
Size on disk: 87,018,365 bytes
Size on disk: 562,010,244 bytes
Size on disk: 350,450,338 bytes
Size on disk: 98,064,573 bytes
Fri 10/30/2015
11:37 AM
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@

[Peter Istvan Lenard]

Nice. Still, I think there are a bit more escapes than necessary :)

Nevertheless, the crash itself should be fixed in version 1.0.1. Please check it.

[Anonymous]

Yep I notice now you don't need the escapes on the @ and...
mgrep -i "\@\@*.*size on disk" no longer causes issue

[Peter Istvan Lenard]

Great. Thanks for the help, I'm closing the ticket, then.

[Anonymous]