Validate perl file

Show Posts. Shell Programming and Scripting. Top Forums Shell Programming and Scripting how to validate data of excel using perl or shell. Registered User. Join Date: Dec I have a software which generates excel report with some specific data.

The excel file format is. The data per cell for specific input data is fixed. I need to retrive specific cell data using shell or perl script. Any one have any such script available or help me create one if has the idea about?

Join Date: Jun If Perl, you could read the excel files with module Spreadsheet::ParseExcel. Sample examples are also given in the link. Anchal if I'm using SpreadSheet::Parseexcel , then the complete data is not coming to the parsed file.

Join Date: Apr I've used this code: Code :. Our JSON validator online tool informs you about the line number where it found the error that you can correct manually. It is a free tool offered by jsononline. You will get the line number of your code that contains some error through this JSON verify tool.

Whether your JSON code is valid or invalid, you can easily figure it out with the help of this web-based tool. The tool will check the validity of a JSON file in a matter of seconds. The tool will fetch the code from your entered URL and let you know about its validity in no time. This tool is absolutely free and safe to use. This tool can be used from any web browser. Since this is a web-based tool, you cannot use it offline.

You need an internet connection on your device for accessing and using this tool. You can save your JSON data without going through the hassle of the registration process. If none of the above are enough, it is possible to pass in one or more callbacks to validate the parameter. The callback will be given the value of the parameter as its first argument. Its second argument will be all the parameters, as a reference to either a hash or array.

Callbacks are specified as hash reference. The key is an id for the callback used in error messages and the value is a subroutine reference, such as:. The callback should return a true value if the value is valid.

If not, it can return false or die. If you return false, a generic error message will be thrown by Params::Validate. If your callback dies instead you can provide a custom error message. If the callback dies with a plain string, this string will be appended to an exception message generated by Params::Validate.

If the callback dies with a reference blessed or not , then this will be rethrown as-is by Params::Validate. If you want values untainted, set the "untaint" key in a spec hashref to a true value, like this:. Note that untainting is only done if all parameters are valid. Also, only the return values are untainted, not the original values passed into the validation function.

Asking for untainting of a reference value will not do anything, as Params::Validate will only attempt to untaint the reference itself. If you want to specify something such as type or interface, plus the fact that a parameter can be optional, do this:. It also possible to specify that a given optional parameter depends on the presence of one or more other optional parameters. Also, if for example, the second parameter 2 depends on the fourth parameter, then it implies a dependency on the third parameter as well.

This is because if the fourth parameter is required, then the user must also provide a third parameter so that there can be four parameters in total. Params::Validate will die if you try to depend on a parameter not declared as part of your parameter specification. If the function is not called in a list context, providing a default in the validation spec still indicates that the parameter is optional. By default, when validation fails Params::Validate calls Carp::confess. Thus the idiomatic usage of validate in a method call will look something like this:.

In most cases, the validation spec will remain the same for each call to a subroutine. In that case, you can speed up validation by defining the validation spec just once, rather than on each call to the subroutine:.

These allow you to specify such things as whether or not the validation of named parameters should be case sensitive, for one example. These options are called pseudo-'globals' because these settings are only applied to calls originating from the package that set the options. You could of course write a module that all your modules use which uses various trickery to do this when imported.

Any alterations made by this callback will be reflected in the parameter hash that is returned by the validation function. If true, then the validation routine will allow extra parameters not named in the validation specification.

Find centralized, trusted content and collaborate around the technologies you use most. Connect and share knowledge within a single location that is structured and easy to search. I have tried to use if statement with arguments like -e , -f and -T to check if a file exist, if it's a file and if it's a plain text file. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to validate a plain text file in perl [closed] Ask Question.

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