一个想做dba的sa

#!/bin/bash #rpm_check.sh SUCCESS=0 E_NOARGES=65 if [ -z $1 ] then echo "Usage:`basename $0` rpm-file" exit $E_NOARGES fi { echo echo "Archive Description:" rpm -qpi $1 echo echo "Archive Lis

history | awk '{CMD[$2]++;count++;} END { for (a in CMD )print CMD[ a ]" " CMD[ a ]/count*100 "% " a }' | grep -v "./" | column -c3 -s " " -t |sort -nr | nl | head -n10

#!/bin/bash [ $# -eq 0 ]&&directorys=`pwd`|| directorys=$@ #!/bin/bash a=az [[ $a == a* ]] echo $? #此时返回的值，应该为0 b=a* [[ $b == "a*" ]] echo $? #此时返回的值，也应该为0#区别如下： 第一个$a匹配以a开头（模式匹配）那么结果为true 第二个$b匹

cat /etc/passwd |awk 'BEGIN{FS=":"}{print $1}'

#!/bin/bash # spawn.sh PIDS=$(pidof sh $0) # Process IDs of the various instances of this script.#打印出该脚本的pid进程 P_array=( $PIDS ) # Put them in an array (why?). #引入变量 echo $PIDS # Show process IDs of p

import socket import sys from thread import * HOST = '' # Symbolic name meaning all available interfaces PORT = 8888 # Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_STR

看到一个简单的打印 Linux服务器流量的脚本。 #!/bin/bash alias ifconfig="/sbin/ifconfig" eth=eth0 while true; do RXpre=$(ifconfig ${eth} | grep bytes | awk '{print $2}'| awk -F":" '{print $2}') TXpre=$(ifconfig