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::fileutil - Procedures implementing some file utilities
package require Tcl 8
package require fileutil ?1.2?
::fileutil::cat filename
::fileutil::find ?basedir ?filtercmd??
::fileutil::findByPattern basedir ?-regexp|-glob? ?--? patterns
::fileutil::foreachLine var filename cmd
::fileutil::grep pattern ?files?
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This package provides implementations of standard unix utilities
::fileutil::cat filename
A tcl implementation of the UNIX «cat» command.
Returns the contents of the specified file. The
first argument is the name of the file to read.
::fileutil::find ?basedir ?filtercmd??
An implementation of the unix command find. Adapted
from the Tcler's Wiki. Takes at most two arguments,
the path to the directory to start searching from
and a command to use to evaluate interest in each
file. The path defaults to ., i.e. the current
directory. The command defaults to the empty
string, which means that all files are of interest.
The command takes care not to loose itself in infinite
loops upon encountering circular link structures.
The result of the command is a list containing
the paths to the interesting files.
::fileutil::findByPattern basedir ?-regexp|-glob? ?--?
patterns
This command is based upon the TclX command recursive_glob,
except that it doesn't allow recursion
over more than one directory at a time. It uses
::fileutil::find internally and is thus able to and
does follow symbolic links, something the TclX command
does not do. First argument is the directory
to start the search in, second argument is a list
of patterns. The command returns a list of all
files reachable through basedir whose names match
at least one of the patterns. The options before
the pattern-list determine the style of matching,
either regexp or glob. glob-style matching is the
default if no options are given. Usage of the
option -- stops option processing. This allows the
use of a leading `-' in the patterns.
::fileutil::foreachLine var filename cmd The command reads the file filename and executes the script cmd for every line in the file. During the execution of the script the variable var is set to the contents of the current line. The return value of this command is the result of the last invocation of the script cmd or the empty string if the file was empty.
::fileutil::grep pattern ?files?
Implementation of grep. Adapted from the Tcler's
Wiki. The first argument defines the pattern to
search for. This is followed by a list of files to
search through. The list is optional and stdin will
be used if is missing. The result of the procedures
is a list containing the matches. Each match is a
single element of the list and contains filename,
number and contents of the matching line, separated
by a colons.
file utilities