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This article mainly explains "check IP format and mysql operation examples with Shell script". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn "using Shell scripts to check IP format and mysql operation examples"!

It is also a part of cronjob, that is, in the scheduled tasks of Rails, the background runs interactively.

CheckIPAddress () {echo $1 | grep "^ [0-9]\ {1 else 3\}\. [0-9]\ {1 else 3\}\. [0-9]\ {1 Magne3\}\. [0-9]\ {1Magne3\} $" > / dev/null if [$? = 1]; then return 1 else a = `echo $1 | awk-F. '{print $1}' `b = `echo $1 | awk-F. '{print $2}' `c = `echo $1 | awk-F. '{print $3}' `d = `echo $1 | awk-F. '{print $4}' `# echo $a $b $c $d for loop in $a $b $c $d do if [$loop-ge] | | [$loop-lt 0]; then return 2 fi done fi} ConfigureDefaultRegion () {echo "Please input Region ip" ret=1 while [$ret! = 0] do read region_ip CheckIPAddress $region_ip ret=$? # echo $ret if [$ret=1] Then echo "Wrong IP address, please reinput Region IP:" fi done / usr/bin/mysql-u root realworx_production-e "update regions set ip='$region_ip' where id=1" 1 > / dev/null 2 > / dev/null if [$? = 0] Then / usr/bin/mysql-u root realworx_production-e "update config_params set val=1 where ident=55" 1 > / dev/null 2 > / dev/null echo "set'$region_ip' as Default and Admin Region IP" elseval= `/ usr/bin/mysql-u root realworx_production-e "select id from regions where ip='$region_ip'" | awk'{if ($1! = "id") print $1}'` / usr/bin/mysql-u root Realworx_production-e "update config_params set val='$val' where ident=55" 1 > / dev/null 2 > / dev/null region_name= `/ usr/bin/mysql-u root realworx_production-e "select name from regions where ip='$region_ip'" | awk'{if ($1! = "name") print $1} '`echo "IP already exists. So set'$region_name' as Admin Region. " Fi echo "Region Setting Successfull."} so far, I believe you have a deeper understanding of "checking IP format and mysql operation examples with Shell scripts". You might as well do it in practice! Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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