Press any key to continue. For example: Script 2: Input "Remove Quotes. Rick Mr. Rick 2, 1 1 gold badge 13 13 silver badges 3 3 bronze badges. GrayFace GrayFace 8 8 silver badges 12 12 bronze badges. No problem: Call ifSet. Hashbrown Hashbrown 9, 8 8 gold badges 65 65 silver badges 76 76 bronze badges. Found a case; If you try the if with else syntax, and the last command in the then block fails, the else will execute: Call ifSet. What cases does the accepted answer use square brackets not work on?
I guess my only gripe with [] now is it lets empty quotes pass, whereas this wont so it's up to your use case, really — Hashbrown. Lin W Lin W 4 4 silver badges 4 4 bronze badges. The tip is really bad. Quotes can handle spaces and special characters at least, but exclamation marks can't. And exclamation marks get really nasty here when delayed expansion is enabled — jeb.
Remember we have two kind of empty arguments : really empty nothing and empty quotes "". We have to detect both. But it is still can fail with "abnormal" expressions with unbalanced quotes do not use them. Alex Kuryakin Alex Kuryakin 1. Using [] is useless, they have no special meaning and can't escape anything. REM go. Turn on for debugging REM You can't see this. Xorange Xorange 1 2 2 bronze badges. It's a long post, but doesn't even try to answer the question.
It's about how to detect empty arguments, not what could be a default behaviour for an empty argument — jeb. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password.
Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually.
XmlPullParser android studio Logo note found overriding nginx configuration in elastic beanstalk bootstrap 5 JS Bundle how to check if local storage is available how to upload in selenium I'm tired create a type from an object in app update android studio google core an error virsion code will shown 0 html all caps values gets posted in CAPS moq return mockset snafu love interests problem gmaili atcg full form view -1 in pytorch golang https stop ssl verification sinacosb how to chnage kubectl to k change linked server name callout not allowed from this future method.
Time time stamp insta hack how to select specific option in vue how to fill an input field using puppeteer? Bootstrap bundle js event-config. These entities need to be deleted before importing phpstorm see where method is used overleaf vectors order by type case vhdl how to uninstall all python packages latex in matplotlib space ngfor with different id lamda function getSquare What is the name of the Android function that is used to update the UI user interface from a background thread?
Social Twitter Facebook. I also don't know how to set those values conditionally. Is this possible? Any suggestions would be appreciated. The SS64 page on IF will help you here. The right thing would be to use a "if defined" statement, which is used to test for the existence of a variable. For example:. Both answers given are correct, but I do mine a little different. You might want to consider a couple things This will keep all your 'SETs" to be only valid during the current session, and will not leave vars left around named like "FileName1" or any other variables you set during the run, that could interfere with the next run of the batch file.
So, you can do something like:. For example, process the first parameter, shift them, and then do it again. The Windows batch processor is much more powerful than people give it credit for.. I've done some crazy stuff with it, including calculating yesterday's date, even across month and year boundaries including Leap Year, and localization, etc. If you really want to get creative, you can call functions in the batch processor But that's really for a different discussion Oh, and don't name your batch files.
They are. Tomasz Gandor Tomasz Gandor 6, 2 2 gold badges 50 50 silver badges 50 50 bronze badges. Embedded double quotes is a recipe for disaster - just sayin' — Skip R.
SkipR - that's why in Windows' filesystems, you can't have these special characters in names. I don't have a mathematical proof, but I think that simply NOT everything can be quoted in the sense of - made verbatim via some escape sequence etc. In other systems you can sometimes quote everything, NUL character included. Jeff Mercado Jeff Mercado k 28 28 gold badges silver badges bronze badges.
Anyway now I can get going. Thanks for your quick response. Actually, all the other answers have flaws. You just need to be able to think inside the box, erm, square [brackets]. First parameter is "long file name" file was unexpected at this time. First parameter is -source:"long file name" file was unexpected at this time. Barev D. Barev 31 2 2 bronze badges. Sign up or log in Sign up using Google.
Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Stack Gives Back Safety in numbers: crowdsourcing data on nefarious IP addresses. Featured on Meta. New post summary designs on greatest hits now, everywhere else eventually. Linked Related Hot Network Questions. Question feed.
0コメント