TCL (Tool Command Language) Question:

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How to run a package in tcl?

TCL Interview Question
TCL Interview Question

Answer:

source <package_name>
(or)
package require <name>

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how to increment eacl element in a list?
eg: incrlist {1 2 3}
=>2 3 4
How increment a character? For example, I give a and I should get b?