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fileutil package in use
File and Directory Handling example from a Well House Consultants training course
More on File and Directory Handling [link]

This example is described in the following article(s):
   • The fileutil package and a list of file system commands in Tcl - [link]

Source code: files Module: T209
package require fileutil

# The Standardly distributed fileutil package provides an interface from Tcl
# to Unix / Linux like file system resources.

# Find out about a file
set about [fileutil::fileType requests.xyz]
puts $about

# Read a whole file and split it into a list of lines
set content [split [fileutil::cat requests.xyz] "\n"]
foreach line $content {
        set record [split $content " "]
        set name [lindex $line 0]
        puts "Let me tell you about $name"
        foreach skill [lrange $line 1 end] {
                puts ".... (s)he knows $skill"
        }
}

# Searching for something ..
# a) recursive listing of my home directory!
set relations [fileutil::find $env(HOME)]
# Following "puts" commented out for demo run - too much output for a web page!
puts $relations

# b) all .txt files under my parent
set relations [fileutil::findByPattern .. -regexp {\.txt$}]
puts $relations

# c) all files over 2 Mbyte in size in my public data directory
proc is_big name {
        return [expr [file size $name] > 2000000]
        }
set huge [fileutil::find /Library/WebServer/live_html/data is_big]
puts [join $huge \n]

# Sample output:
#
# wizard:tcl85 graham$ tclsh files
# text
# Let me tell you about antonia
# .... (s)he knows Perl
# .... (s)he knows XML
# .... (s)he knows PHP
# .... (s)he knows Tcl/Tk
# .... (s)he knows MySQL
# Let me tell you about barbara
# .... (s)he knows Tcl/Tk
# .... (s)he knows ASP
# .... (s)he knows Ruby
# .... (s)he knows Java
# Let me tell you about cherry
# .... (s)he knows Perl
# .... (s)he knows Java
# .... (s)he knows Ruby
# .... (s)he knows MySQL
# Let me tell you about delia
# .... (s)he knows XML
# .... (s)he knows PHP
# .... (s)he knows Java
# .... (s)he knows ASP
[etc]
# Let me tell you about tommy
# .... (s)he knows Perl
# .... (s)he knows Java
# .... (s)he knows XML
# Let me tell you about ulsyees
# .... (s)he knows Java
# .... (s)he knows PHP
# .... (s)he knows Perl
# Let me tell you about victor
# .... (s)he knows Ruby
# .... (s)he knows Perl
# .... (s)he knows Tcl/Tk
# .... (s)he knows MySQL
# Let me tell you about william
# .... (s)he knows Ruby
# .... (s)he knows Perl
# .... (s)he knows PHP
# Let me tell you about xavier
# .... (s)he knows PHP
# .... (s)he knows Java
# .... (s)he knows Perl
# Let me tell you about yuri
# .... (s)he knows XML
# .... (s)he knows PHP
# .... (s)he knows Perl
# .... (s)he knows Tcl/Tk
# Let me tell you about zachary
# .... (s)he knows MySQL
# .... (s)he knows Java
# .... (s)he knows Tcl/Tk
# Let me tell you about
# ../apols.txt ../tcl85/demo.txt
# /Library/WebServer/live_html/data/ac_20100322.xyz
# /Library/WebServer/live_html/data/ac_20100608.xyz
# /Library/WebServer/live_html/data/acc.xyz
# wizard:tcl85 graham$
Learn about this subject
This module and example are covered on the following public courses:
 * Learning to program in Tcl
 * Tcl Programming
 * Tcl Programming
Also available on on site courses for larger groups

Books covering this topic
Yes. We have over 700 books in our library. Books covering Tcl, Tk and Expect are listed here and when you've selected a relevant book we'll link you on to Amazon to order.

Other Examples
This example comes from our "File and Directory Handling" training module. You'll find a description of the topic and some other closely related examples on the "File and Directory Handling" module index page.

Full description of the source code
You can learn more about this example on the training courses listed on this page, on which you'll be given a full set of training notes.

Many other training modules are available for download (for limited use) from our download centre under an Open Training Notes License.

Other resources
• Our Solutions centre provides a number of longer technical articles.
• Our Opentalk forum archive provides a question and answer centre.
The Horse's mouth provides a daily tip or thought.
• Further resources are available via the resources centre.
• All of these resources can be searched through through our search engine
• And there's a global index here.

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This web site is written and maintained by Well House Consultants.

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This is a sample program, class demonstration or answer from a training course. It's main purpose is to provide an after-course service to customers who have attended our public private or on site courses, but the examples are made generally available under conditions described below.

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Past attendees on our training courses are welcome to use individual examples in the course of their programming, but must check the examples they use to ensure that they are suitable for their job. Remember that some of our examples show you how not to do things - check in your notes. Well House Consultants take no responsibility for the suitability of these example programs to customer's needs.

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