CODEWITHSUNDEEP
shellbatch-file
Priya Rajput
Priya Rajput

Reputation: 101

Symbol =< in Batch Script

I came across a batch script with line set /p TestVersion=<version.txt

My interpretation of this command line is :- /p signifies pause the script till the version.txt is read and feed its value to TestVersion ?

Is =< symbol used when an input is fed to other variable ?

Pls clarify the symbol details.

Thank you

Upvotes: 1

Views: 62

Answers (1)

SomethingDark
SomethingDark

Reputation: 14305

That code takes the first line of version.txt and stores it in the variable TestVersion.

set /p is a command for taking in user input, and < is an input redirection symbol. When data is piped into a set command, it is read in one line at a time per instance of input redirection, so you can run that line over and over and it will always give the same result, but if you say something like

(
    set /p first_line=
    set /p second_line=
)<version.txt

then first_line will contain the first line in the file and second_line will contain the second line in the file.

Upvotes: 4

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