kkarad

kostas@localhost ~$ cat fix.log
2014-03-20 10:30:20,123 123456.123456789 MassQuote
2014-03-20 10:30:20,133 123456.123456789 MassQuoteAcknowledgement
2014-03-20 10:31:20,234 123456.123456789 MassQuote
2014-03-20 10:31:20,240 123456.123456789 MassQuoteAcknowledgement
kostas@localhost ~$ cat fix.log | awk '!(NR%2){printf("%s %s %s %s\n",p,$1,$2,$3)}{p=$1" "$2}'
2014-03-20 10:30:20,123 2014-03-20 10:30:20,133 123456.123456789
2014-03-20 10:31:20,234 2014-03-20 10:31:20,240 123456.123456789

kkarad

#!/bin/bash
#set -x

# Prints the date difference of "start" and "end" date in milliseconds
function datediff {
   startsec=$(date -d "$1" +%s)
   while [[ $startsec = 0* ]]; do startsec=${startsec#0}; done

   endsec=$(date -d "$2" +%s)
   while [[ $endsec = 0* ]]; do endsec=${endsec#0}; done

kkarad

#Taken from: http://www.binarytides.com/linux-commands-hardware-info/

#kernel and distro
cat /etc/*release
cat /proc/version

#cpu
cat /proc/cpuinfo

#memory

kkarad

package org.kkarad.metrics;

import org.HdrHistogram.Histogram;

import gnu.trove.map.hash.TObjectLongHashMap;

public class Metrics {
    private static final Histogram histogram = new Histogram(3600000000000L, 3);
    private static TObjectLongHashMap<String> map = new TObjectLongHashMap<String>(1000, 0.5f, -1);

kkarad

# for every directory run multiple commands
find . -maxdepth 1 -type d -exec sh -c "cd {} && mvn clean && cd -" \;

#when disk is out of space identify directory which occupies most space
df -h
du -s * | sort -r -n | head -n 10