Logtop

logtop -

NAME

logtop - Realtime log line rate analyser

SYNOPSIS

logtop [OPTIONS]

DESCRIPTION

logtop is a System Administrator tool analyzing line rate on stdin It reads on stdin and print a constantly updated result displaying, in columns Line number, count, frequency, and the actual line

$ tail -f FILE | logtop

is the friendly version of

$ watch 'tail FILE | sort | uniq -c | sort -gr'

OPTIONS

-s, --size=K Only keep K lines in memory, instead of 10000

-q, --quiet Do not display a live view of the data, only display a top at exit

-l, --line-by-line=K Print result line by line, in a machine friendly format, K is the number of result to print per line

Line by line format is : [%d %f %s\t]*\n %d : Number of occurences %f : Frequency of apparition %s : String (Control chars replaced by dots

-i, --interval=K Interval between graphical updates, in seconds. Defaults to 1

-h, --help Show summary of options

-v, --version Show version of program

EXAMPLES

Here are some logtop usage examples

tail -f cache.log | grep -o "HIT\|MISS" | logtop

Realtime hit / miss ratio on some caching software log file

tail -f access.log | cut -d' ' -f1 | logtop -s 10000

Realtime most querying IPs on your server, as long as log lines in access.log starts with the client IP

tail -f access.log | cut -d' ' -f7 | logtop -s 10000

Realtime most requested web pages in a NCSA like log file

cat auth.log | grep -v "CRON" | grep -o ": .*" | logtop -q -s 100000

Display a one-shot simple analyse of your auth.log

SEE ALSO

1. watch(1)

Anhang

Siehe auch

• Logtop