support

By default, ARES commands start with @ when typed in local chat.

However, @ is not used when writing shell scripts. An @ in an ARES shell script indicates a label (jump destination).

Direct comparison with common shells:

Linux bash	Windows cmd.exe	ARES exec	ARES default aliases
cat <file>	type <file>	type <file>
ls <pattern>	dir <pattern>	fs match <pattern>	ls <pattern>
ls	dir	fs
shutdown -h now	shutdown /s /t 0	power system off	off
echo <string>	echo <string>	echo <string>
<var>=<string>	set <var>=<string>	set <var> <string>
rm <file>	del <file>	fs remove <file>
env	set	db env	env
exit	goto :EOF	exit
—	goto <label>	jump <label>
—	:<label>	@<label>:

File existence checks
bash	if -e <file>; then <command>; fi
cmd.exe	if exist <file> <command>
exec	if exist <file> then <command>

String comparison
bash	if [ <string1>==<string2> ]; then <command>; fi
cmd.exe	if <string1>==<string2> <command>
exec	if <string1> is <string2> then <command>

Storing a numeric expression in an environment variable
bash	let <var>=<math>
cmd.exe	set /a <var>=<math>
exec	set <var>=<math>

Notes:

• The bourne shell is an ALGOL dialect; for ideological reasons it does not support goto
  
• The 'fs match <pattern>' facility in ARES is designed for creating file associations, not data science; it only supports a single "*" wildcard