Tcl >> Tcl Built-In Commands >> Control Constructs

Control Constructs

after - Execute a command after a time delay

break - Abort looping command

catch - Evaluate script and trap exceptional returns

continue - Skip to the next iteration of a loop

error - Generate an error

eval - Evaluate a Tcl script

for - ``For'' loop

foreach - Iterate over all elements in one or more lists

if - Execute scripts conditionally

return - Return from a procedure

switch - Evaluate one of several scripts, depending on a given value

update - Process pending events and idle callbacks

uplevel - Execute a script in a different stack frame

vwait - Process events until a variable is written

while - Execute script repeatedly as long as a condition is met

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