Easiest way to validate:
phone number format
e-mail address format
credit card number format
or anything else to check.
Using Reg-Ex you can verify, if the legitimate characters are used in the e-mail, you can also test if the domain name length is within the limit, also if the address contains at-sign character or does not contains characters (symbols) that are not possible to use in e-mail addresses.
learn moreUsing Reg-Ex for processing of credit card numbers, you can check the issuers, type, or simply verify if the card number is supported at Your shop.
learn moreMost efficient, yet easy is testing, if the phone number contains enough numbers, if there is country prefix, spaces, groups of numbers, etc.
learn moreOn the image above is shown the Regular Expression, that can settle the verification of the phone number format in order to confirm it is valid, and meets the previously mentiond local and domain lengths. The code follows in order, to allow copy it for your requirements.Using Regular Expression stated, you can "catch" phone numbers in following format:
Code1: Reg-Ex for verification of phone numbers with/without international format covering all numbers to the left.
Code2: usage og Reg-Ex verification in the HTML input field. Please, note the type is NOT text, but tel. The error statement displayed if data inserted does not meet the pattern, can be customized as per your needs.
On the image above is shown the Regular Expression, that can settle the verification of the e-mail address format in order to confirm it is valid, and meets the previously mentiond local and domain lengths. The code follows in order, to allow copy it for your requirements.
^[a-zA-Z.-_=\+\!]{1,63}@[a-zA-Z.]{1,200}(?:\.[a-zA-Z]{1,5}){0,2}\.[a-zA-Z]{2,24}$
Code3: Reg-Ex for verification of e-mail address including symbols and IP addresses.
In order to seek for some data, records or a line at log using Powershell, you cannot use something like IF/ELSE statement similar to the PHP or any other programming language, that supports such statements. Still, the solution exists. And that solution is Reg-Ex. So should you need to get one line from the huge log file, when some of the conditions are met, you need to configure Reg-Ex fine, to cover your demands.
On the image above is shown the Regular Expression, that can settle the verification of the e-mail address format in order to confirm it is valid, and meets the previously mentiond local and domain lengths. The code follows in order, to allow copy it for your requirements.
Code4: Powershell including Reg-Ex for searching ID in log file, based on the value entered returning DateTime stamp and the rest of the line containing the ID entered on prompt.
