file - Manipulate file names and attributes

http://purl.org/tcl/home/man/tcl8.4/TclCmd/file.htm

'''file''' ''option name ?arg arg ...?''

This command provides several operations on a file's name or attributes. ''Name'' is the name of a file; if it starts with a tilde, then tilde substitution is done before executing the command (see the manual entry for '''[filename]''' for details).  ''Option'' indicates what to do with the file ''name''.  Any unique abbreviation for ''option'' is acceptable.  The valid options are: (see complete man page; here's only notes on selected options).

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'''[file atime]''' ''name ?time?''

'''[file attributes]''' ''name''

'''[file attributes]''' ''name ?option?''

'''[file attributes]''' ''name ?option value option value...?''

'''[file channels]''' ''?pattern?''

'''[file copy]''' ''?'''''-force'''''? ?'''''--'''''? source target''

'''[file copy]''' ''?'''''-force'''''? ?'''''--'''''? source ?source ...? targetDir''

'''[file delete]''' ''?'''''-force'''''? ?'''''--'''''? pathname ?pathname ... ?''

'''[file dirname]''' ''name''

'''[file executable]''' ''name''

'''[file exists]''' ''name''

'''[file extension]''' ''name''

'''[file isdirectory]''' ''name''

'''[file isfile]''' ''name''

'''[file join]''' ''name ?name ...?''

'''[file link]''' ''?-linktype? linkName ?target?'' (requires Tcl8.4)

'''[file lstat]''' ''name varName''

'''[file mkdir]''' ''dir ?dir ...?''

'''[file mtime]''' ''name ?time?''

'''[file nativename]''' ''name''

'''[file normalize]''' ''name'' (requires Tcl8.4)

'''[file owned]''' ''name''

'''[file pathtype]''' ''name''

'''[file readable]''' ''name''

'''[file readlink]''' ''name''

'''[file rename]''' ''?'''''-force'''''? ?'''''--'''''? source target''

'''[file rename]''' ''?'''''-force'''''? ?'''''--'''''? source ?source ...? targetDir''

'''[file rootname]''' ''name''

'''[file separator]''' ''?name?''

'''[file size]''' ''name''

'''[file split]''' ''name''

'''[file stat]''' ''name varName''

'''[file system]''' ''name'' (requires Tcl8.4)

'''[file tail]''' ''name''

'''[file type]''' ''name''

'''[file volumes]'''

'''[file writable]''' ''name''
 
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[[Hopefully someone will provide some samples to show how these are useful. With the new [VFS] support in [Tcl] 8.4, and an appropriate extension, '''file''' can operate on much more than just local files (see the [One-line web browser in Tcl] for example).]]

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'''Can someone comment on what happens if the current working directory is on a different drive?'''
 
Yes. The question is essentially nonsensical because the current working directory is a per-drive attribute. What happens if I try to open the door, but the other door is open?

Hmm , so the following sequence, in Windows, is nonsense?

 cd C:/tcl/lib
 set fd [open "G:list.txt" "w"]
 set lst [glob *]
 puts $fd $lst
 close $fd

Interesting- I never realized that Windows was so brain-damaged.

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See also:

   * [filesystem benchmarking]

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[Tcl syntax help] -
[Arts and Crafts of Tcl-Tk Programming] -
[Category Command] -
[Additional file commands]