%j and %k are implicitly declared by using tokens=. %i is explicitly declared in the for statement. Otherwise, the quotation marks are interpreted as defining a literal string to parse. To use quotation marks, you must use usebackq. If the file names that you supply contain spaces, use quotation marks around the text (for example, File Name). The body of the for statement references %i to get the second token, %j to get the third token, and %k to get all of the remaining tokens. It ignores lines that begin with a semicolon and passes the second and third token from each line to the for body (tokens are delimited by commas or spaces). This command parses each line in myfile.txt. To parse a file, ignoring commented lines, type: for /f eol= tokens=2,3* delims=, %i in (myfile.txt) do %i %j %k Otherwise, the variable is ignored and an error message is displayed. To use this command in a batch file, replace every occurrence of %f with %%f. txt extension in the current directory is substituted for the %f variable until the contents of every file are displayed. In the preceding example, each file that has the. txt by using the replaceable variable %f, type: for %f in (*.doc *.txt) do type %f To display the contents of all the files in the current directory that have the extension. Runs a specified command for each file, within a set of files.
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March 2023
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