Tcl/Tk - File and Directory Handling

File and Directory Handling - Tcl/Tk module T209

This module covers opening, reading and writing files in Tcl. You'll also learn how to check the contents of directories, test for the existence of individual files, and look up other information ranging from file size to file update time.

This topic is presented on public course Tcl Basics

Examples from our training material

bigbelow	Find biggest file in or below a specified folder
biggest	using glob to check all files in a directory
disc_status	piping input from an operating system command
dnstab	Read a file, extract from it
filework	Report file statuses
multifile	Output to stdout and several files at the same time
recent	List all files modified in the last hour

Opentalk forum discussions related to this topic

save output into file
list directories
TCL writing reading to several files
Splitting a file into pieces
I want see content of folder

Pictures

Tcl is a great Engineer's language

Background information

Some modules are available for download as a sample of our material or under an Open Training Notes License for free download from http://www.training-notes.co.uk.

Topics covered in this module

Reading and writing files.
Opening a file - the basics.
Reading from a file.
Writing to a file.
Closing a file.
More about reading and writing files.
Other open access arguments.
An alternative to gets.
Other Input/Output commands.
Example.
File and directory handling.
The file command.
Looping through all the files in a directory.

Complete learning

If you are looking for a complete course and not just a information on a single subject, visit our Listing and schedule page.

Well House Consultants specialise in training courses in Tcl/Tk, Expect,Python, Perl, PHP, and MySQL. We run Private Courses throughout the UK (and beyond for longer courses), and Public Courses at our training centre in Melksham, Wiltshire, England. It's surprisingly cost effective to come on our public courses - even if you live in a different country or continent to us.

We have a technical library of over 600 books on the subjects on which we teach. These books are available for reference at our training centre. Also available is the Opentalk Forum for discussion of technical questions.