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 huecker.com # Grundlagen der Programmierung | Tcl Tutorial.
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. String Subcommands - length index range .

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One feature of Tcl is that commands may have subcommands. String is an example of one of these. The string command treats the first argument as a subcommand. This lesson covers these string subcommands:

string length string
Returns the length of string
string index string index
Returns the char at the index'th position in string
string range string first last
Returns a string composed of the characters from first to last

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. Example .

   set string "this is my test string"

   puts "There are [string length $string] characters in \"$string\""

   puts "[string index $string 1] is the second character in \"$string\""

   puts "\"[string range $string 5 10]\" are characters between the 5'th and 10'th"
  

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