收集linux网络配置信息的shell脚本

此脚本已在CentOS/ RHEL和Fedora Linux操作系统下进行测试过。
可用于当前网络配置信息。

代码：

#!/bin/bash
#
HWINF=/usr/sbin/hwinfo
IFCFG=/sbin/ifconfig
IP4FW=/sbin/iptables
IP6FW=/sbin/ip6tables
LSPCI=/sbin/lspci
ROUTE=/sbin/route
NETSTAT=/bin/netstat
LSB=/usr/bin/lsb_release

## files ##
DNSCLIENT="/etc/resolv.conf"
DRVCONF="/etc/modprobe.conf"
NETALIASCFC="/etc/sysconfig/network-scripts/ifcfg-eth?-range?"
NETCFC="/etc/sysconfig/network-scripts/ifcfg-eth?"
NETSTATICROUTECFC="/etc/sysconfig/network-scripts/route-eth?"
SYSCTL="/etc/sysctl.conf"

## Output file ##
OUTPUT="network.$(date +'%d-%m-%y').info.txt"

## Email info to?? ##
SUPPORT_ID="you@example.com"

chk_root(){
 local meid=$(id -u)
 if [ $meid -ne 0 ];
 then
  echo "您必须是root用户才能运行此工具"
  exit 999
 fi
}

write_header(){
 echo "---------------------------------------------------" >> $OUTPUT
 echo "$@" >> $OUTPUT
 echo "---------------------------------------------------"  >> $OUTPUT
}

dump_info(){
 echo "* Hostname: $(hostname)" >$OUTPUT
 echo "* Run date and time: $(date)" >>$OUTPUT

 write_header "Linux Distro"
 echo "Linux kernel: $(uname -mrs)" >>$OUTPUT
 $LSB -a >> $OUTPUT 

 [ -x ${HWINF} ] && write_header "${HWINF} --network_ctrl"
 [ -x ${HWINF} ] && ${HWINF} --network_ctrl >> $OUTPUT

 [ -x ${HWINF} ] && write_header "${HWINF} --isapnp"
 [ -x ${HWINF} ] && ${HWINF} --isapnp >> $OUTPUT

 write_header "PCI Devices"
 ${LSPCI} -v >> $OUTPUT

 write_header "$IFCFG Output"
 $IFCFG >> $OUTPUT

 write_header "Kernel Routing Table"
 $ROUTE -n >> $OUTPUT

 write_header "网卡驱动程序的配置 $DRVCONF"
 [ -f $DRVCONF ] && grep eth $DRVCONF  >> $OUTPUT || echo "Error $DRVCONF file not found."  >> $OUTPUT

 write_header "DNS $DNSCLIENT 配置信息"
 [ -f $DNSCLIENT ] && cat $DNSCLIENT >> $OUTPUT || echo "Error $DNSCLIENT file not found." >> $OUTPUT

 write_header "网络配置文件信息"
 for f in $NETCFC
 do
  if [ -f $f ]
  then
   echo "** $f **" >> $OUTPUT
   cat $f >> $OUTPUT
  else
   echo "Error $f not found." >> $OUTPUT
  fi
 done 

 write_header "Network Aliase File"
 for f in $NETALIASCFC
 do
  if [ -f $f ]
  then
   echo "** $f **" >> $OUTPUT
   cat $f >> $OUTPUT
  else
   echo "Error $f not found." >> $OUTPUT
  fi
 done 

 write_header "网络静态路由配置"
 for f in $NETSTATICROUTECFC
 do
  if [ -f $f ]
  then
   echo "** $f **" >> $OUTPUT
   cat $f >> $OUTPUT
  else
   echo "Error $f not found." >> $OUTPUT
  fi
 done 

 write_header "IP4防火墙配置"
 $IP4FW -L -n >> $OUTPUT

 write_header "IP6防火墙配置"
 $IP6FW -L -n  >> $OUTPUT

 write_header "网络状态"
 $NETSTAT -s >> $OUTPUT

 write_header "Network Tweaks via $SYSCTL"
 [ -f $SYSCTL ] && cat $SYSCTL >> $OUTPUT || echo "Error $SYSCTL not found." >>$OUTPUT

 echo "网络配置信息被写入文件： $OUTPUT. 请发邮件到： $SUPPORT_ID."
}

chk_root
dump_info