Tcl/Tk in a Nutshell

Group Listing of Commands

This section briefly lists all Tcl commands, grouped logically by function.

Control Statements

break	Abort innermost containing loop command.
case	Obsolete, see switch.
continue	Skip to next iteration of innermost containing loop command.
exit	Terminate process.
for	Loop based on an expression.
foreach	Loop over each element of a list.
if	Conditional evaluation.
return	Return from procedure.
switch	Evaluation based on pattern match.
while	Loop based on a condition being true.

File Manipulation

file atime	Return file access time.
file mtime	Return file modification time.
file attributes	Set or get platform-dependent file attributes.
file copy	Make copy of a file or directory.
file delete	Remove file or directory.
file dirname	Return directory portion of pathname.
file executable	Return 1 if file is executable, 0 otherwise.
file exists	Return 1 if file exists, 0 otherwise.
file isdirectory	Return 1 if file is a directory, 0 otherwise.
file isfile	Return 1 if file is a regular file, 0 otherwise.
file owned	Return 1 if file is owned by current user, 0 otherwise.
file readable	Return 1 if file is readable by current user, 0 otherwise.
file writable	Return 1 if file is writable by current user, 0 otherwise.
file extension	Return characters after and including last period.
file join	Combine arguments with path separator to form pathname.
file mkdir	Create a directory.
file nativename	Return platfor m-specific filename.
file pathtype	Return type of path: absolute, relative, or volumerelative.
file readlink	Return value ...