Get system information

get-system-info.sh

#!/bin/bash

# This is a simple script to gather some basic information about the system
# usage:
# git clone git://gist.github.com/3979756.git get-system-info
# cd get-system-info ; sh ./get-system-info.sh > system-info.log

header(){
echo '-------------------------------------------------------------------'
echo $1
echo '-------------------------------------------------------------------'
}


header w
w

header ifconfig
ifconfig

header 'ping gateway'
gateway=`route -n | awk '{print \$2}' | grep -v 0.0.0.0 | grep -E '^[0-9]'`
ping -c 300 -f $gateway | grep -v 'icmp_req'
ping -c 300 -f -s 1024 $gateway | grep -v 'icmp_req'

header 'ping 8.8.8.8'
ping -c 300 -f 8.8.8.8 | grep -v 'icmp_req'
ping -c 300 -f -s 1024 8.8.8.8 | grep -v 'icmp_req'

header 'traceroute'
traceroute -n 8.8.8.8

header 'iptables -L -nv'
iptables -L -nv

header 'iptables -L -nv -t nat'
iptables -L -nv -t nat

header 'processes by mem'
ps haxo pid,rss,args --sort -rss | head -15

header 'processes by cpu'
ps haxo pid,pcpu,args --sort -pcpu | head -15

header 'processes'
ps aux

header meminfo
cat /proc/meminfo

header ceph
ceph status

header routing
netstat -nr 

header 'netstat -n'
netstat -n
header 'netstat -i'
netstat -i
header 'netstat -ns'
netstat -ns
header 'netstat -npa'
netstat -npa
header 'netstat -punta'
netstat -punta

header lsof
lsof -i

header sysctl
/sbin/sysctl -a

header dmesg
dmesg

header messages
tail -1000 /var/log/messages