Flow of control commands

Available commands are:

break(1tcl)

terminates a looping command

case(1tcl)

evaluates one of several scripts, depending on a given value

catch(1tcl)

evaluates a script and traps exceptional returns

continue(1tcl)

skips to the next iteration of a loop

eval(1tcl)

evaluates a Tcl script

exec(1tcl)

invokes subprocess(es)

exit(1tcl)

ends the application

expr(1tcl)

evaluates an expression

for(1tcl)

initiates a for loop

foreach(1tcl)

iterates over all elements in a list

if(1tcl)

executes scripts conditionally

incr(1tcl)

increments the value of a variable

proc(1tcl)

creates a Tcl procedure

return(1tcl)

returns from a procedure

source(1tcl)

evaluates a file as a Tcl script

subst(1tcl)

performs backslash, command, and variable substitutions

switch(1tcl)

evaluates one of several scripts, depending on a given value

trace(1tcl)

monitors variable accesses

unknown(1tcl)

handles attempts to use non-existent commands

uplevel(1tcl)

executes a script in a different stack frame

while(1tcl)

executes a script repeatedly as long as a condition is met