01-07-2012
How to search in a log file?
Hey guys,
I'm still relatively new to Linux and everyday is a learning experience for me. Anyway, I have a question about searching inside a log file and didn't know what topic this would come under so posting it here as I am a Dummie lol!
Say I have a log file which consists of say, for example, 500,000 rows and I need to search that file for a specific error message - whats the best way of doing so ? Currently, if I need to look through the whole file I am using the 'more' command and then searching using the forward slash and entering what I want to look for - is there a more efficient way ?
Do any of you guys have any 'cheat sheets' of commands in more/vim for using !? One of the guys at work suggested using the 'Shift' key with certain keys but for the life of me I can't remember what ones.
My knowledge at the minute of Sed/Awk to attempt this is extremely limited so unfortunately can't use those utilities as yet to help.
- Jim
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LOG1P(3) 1 LOG1P(3)
log1p - Returns log(1 + number), computed in a way that is accurate even when the value of number is close to zero
SYNOPSIS
float log1p (float $number)
DESCRIPTION
log1p(3) returns log(1 + $number) computed in a way that is accurate even when the value of $number is close to zero. log(3) might only
return log(1) in this case due to lack of precision.
PARAMETERS
o $number
- The argument to process
RETURN VALUES
log(1 + $number)
CHANGELOG
+--------+--------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+--------------------------------------------------+
| 5.3.0 | |
| | |
| | This function is now available on all platforms |
| | |
+--------+--------------------------------------------------+
SEE ALSO
expm1(3), log(3), log10(3).
PHP Documentation Group LOG1P(3)