External Utilities

Command	Function
binedit	Binary edit.
cat	Concatenate files.
chgrp	Change the group for files or directories.
chmod	Change mode bits of file.
chown	Change the ownership of files or directories.
cmp	Binary compare two files or directories.
cp	Copy files or directories.
cron	Run commands at specified times.
csh	The C shell itself.
cut	Cut out selected fields of each line of text.
des	Encrypt or decrypt data using the Data Encryption Standard (DES).
date	Display the date and time.
diff	Compare files or directories.
dim	Discard any ansi escape sequences in the input stream.
dirbox	Directory selection dialog box.
dskread	Read raw sectors from a disk.
dskwrite	Write raw sectors to a disk.
du	Display disk usage.
env	Execute a command with a new environment.
exec	Run an arbitrary command as a separate process.
fgrep	Fast string search (fast grep) of text files.
filebox	File selection dialog box.
getopt	Parse command-line options.
grep	Regular expression pattern search of text files.
head	Copy the first few lines or bytes of a file to stdout.
label	Read/Write the volume label.
ln	Hard link a file to a new name.
ls	List directory contents.
mkdir	Make a new directory.
more	A better more utility. (Able to search forward or backward or to a specific line.)
mt	Manipulate the tape device.
mv	Move files or directories.
newer	Test whether first file is newer than the others.
older	Test whether first file is older than the others.
open	Open a file using the associated application.
paste	Merge corresponding or subsequent lines.
pwd	Print the working directories.
rm	Remove files or directories.
rmdir	Remove directories.
sed	Stream editor.
setrows	Set or report the number of rows in the display window.
setwin	Set or report the current window's show state.
shortcut	Create or report a shortcut.
showdesk	Show the desktop.
sort	Sort and/or merge files.
split	Split a large file into equal-sized chunks.
strings	Extract ASCII strings from a file.
su	Run a command as another user.
sum	Checksum the contents of a file.
tabs	Expand/Unexpand tabs.
tail	Copy the last few lines or bytes of a file to stdout.
tar	Read/Write UNIX TAR and CPIO format files and tapes. (Tapes not supported under Windows 9x.)
tee	Pipe fitting.
touch	Update the time-stamp on a file.
tr	Translate characters.
uniq	Report unique lines in text files.
uudecode	Uudecode binary data.
uuencode	Uuencode binary data for email transmission.
ver	Display the current system and Hamilton C shell version numbers.
vol	Display the disk volume label.
wc	Count lines, words and characters.
whereis	Tell which PATH directory a given executable is in.
whoami	Print the current domain and user names.
xargs	Construct argument list(s) and invoke utility.
xd	Hex dump a file to stdout.

All external utilities except whereis self-document with the -h option. Any external utility may be renamed simply by renaming the executable file.