想写一些简化管理操作的脚本，下面是基础脚本之一，
对于一个从来没使用过perl脚本的我来说还是有些难度的，直接上代码。
此脚本用于发送远程MySQL命令并且接收结果，功能比较简单，后面会渐渐完善。
#!/usr/bin/perl use Getopt::Long;use DBI; Getopt::Long::GetOptions( ‘host|h=s‘ => \$host, ‘user|u=s‘ => \$user, ‘password|pw=s‘ => \$password, ‘port|p=s‘ => \$port, ‘command|c=s‘ => \$command, ‘groupfile|f=s‘ => \$groupfile, ‘help‘ => \$help ); #print help info my $printh=q{usage : mysqlcon -h 192.168.0.33 -u root -pw ‘xiaojun‘ -p 3306 -c ‘show global status‘ or mysqlcon -g 2.txt -c ‘select user();‘cat 2.txt:192.168.0.33 root xiaojun 3306192.168.0.34 root xiaojun 3306options:-h database server *-u account name *-pw password for account *-p port for mysqld *-c command to execute *-help print help};=podif(!defined($host)){ print "page flag set to $page "}if(defined($user)){ print "user flag set to $user\n ";}if(defined($password)){ print "onoff flag set to $password \n";}if(defined($command)){ print "help flag set to $command \n";}if(defined($help)){ print $printh}=cutsub execute_sql{my $dsn = "DBI:mysql:database=mysql;host=$_[0]:$_[1]";my ($dbh,$sth,@ary);$dbh = DBI->connect($dsn,$_[2],$_[3],{‘RaiseError‘ => 1});$sth = $dbh->prepare("$_[4]");$sth->execute(); while(@ary = $sth->fetchrow_array()){print join("\t",@ary),"\n";} $sth->finish; $dbh->disconnect; }#&execute_sql($host,$port,$user,$password,$command) ;unless (!defined($help)) { die "$printh" };if(defined($groupfile)){ unless (defined($command)) { die "Wrong usage : No command input .\n $printh" }; open(IN,$groupfile); while($line=){ my @args=split /\s/,$line; print "host:@args[0]\ncommand:$command\n******BEGIN\n"; &execute_sql(@args[0],@args[3],@args[1],@args[2],$command) ; print "******END \n\n\n*****************************************************\n\n\n"; }}else{unless (defined($host)) { die "Wrong usage : No host input .\n $printh" };unless (defined($user)) { die "Wrong usage : No account input .\n $printh" };unless (defined($password)) { die "Wrong usage : No password input .\n $printh" };unless (defined($port)) { die "Wrong usage : No port number input .\n $printh" };unless (defined($command)) { die "Wrong usage : No command input .\n $printh" };&execute_sql($host,$port,$user,$password,$command) ;}
使用方法
[root@centos511 ~]# ./6.perl -h 192.168.0.33 -u root -pw ‘xiaojun‘ -p 3306 -c ‘select user()‘ ;root@192.168.0.33[root@centos511 ~]# ./6.perl -g 2.txt -c ‘select user()‘ host:192.168.0.33command:select user()******BEGINroot@192.168.0.33******END *****************************************************host:192.168.0.33command:select user()******BEGINroot@192.168.0.33******END *****************************************************[root@centos511 ~]# cat 2.txt 192.168.0.33 root xiaojun 3306192.168.0.33 root xiaojun 3306[root@centos511 ~]# ./6.perl -helpusage : mysqlcon -h 192.168.0.33 -u root -pw ‘xiaojun‘ -p 3306 -c ‘show global status‘ or mysqlcon -g 2.txt -c ‘select user();‘cat 2.txt:192.168.0.33 root xiaojun 3306192.168.0.34 root xiaojun 3306options:-h database server *-u account name *-pw password for account *-p port for mysqld *-c command to execute *-help print help
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