Help Command
The HELP command provides basic information about syntax and options for each and every command. If issued without parameters it lists all of the commands available to you at the JANOS Command Line.
bruce_dev /> help Available Commands: arp bye cat cd certmgr chdir chgrp chmod chown copy cp date del dir echo egrep exit extern find gc grep groupadd groupdel groups help history hostname iolog ipconfig jar java jrflash jrmon jrupdate kill logger ls man manifest md mkdir mode move mv netstat nslookup nv passwd ping ps rd reboot reg registry ren rename rm rmdir sendmail set setenv stats thd touch type useradd userdel usermod users whoami zip bruce_dev />
Note that this list depends on the user’s permission level. The list above covers all commands. It is displayed for Administrator accounts.
The list is reduced when not an Administrator. These are the command available to a user with the Control permissions flag.
bruce_dev /> help Available Commands: bye cat cd chdir chmod copy cp del dir echo egrep exit extern find grep help history java jrmon ls man md mkdir move mv passwd ping rd ren rename rm rmdir stats type whoami bruce_dev />
And if you are logged in as a guest with an account that neither has the Administrator flag or the Control Flag then this is all you can use.
bruce_dev /> help Available Commands: bye cat cd chdir dir echo egrep exit find grep help history jrmon ls man passwd ping stats type whoami bruce_dev />
The HELP command has an alias MAN. JANOS wants to seem familiar to new users and so tries to be a bit flexible. For this reason both DIR and LS perform the same function.
If you provide the name of a command as a parameter details for that command are displayed.
bruce_dev /> help dir DIR [filespec] Options: -A List all including hidden files -F List only files -D List only folders -L,-V Verbose format -W Wide format -S,-R Include subfolders -X Expanded includes path permissions filespec May contain wildcards Lists a file, group of files or the contents of an entire folder. Aliases: LS, DIR bruce_dev />
That includes itself.
bruce_dev /> help help
HELP [cmdspec]
cmdspec May include wildcards
Lists available detail for matching commands
The following special characters define the command-line syntax:
[ ] Identifies an optional argument. Arguments that are not enclosed in brackets
are required.
... Indicates possible multiple values for the previous argument.
| Indicates mutually exclusive information. You can use the argument to the left
of the separator or the argument to the right of the separator. You cannot
use both arguments in a single use of the command.
{ } Delimits a set of mutually exclusive arguments when one of the arguments is
required. If the arguments are optional, they are enclosed in brackets ([ ]).
Enclose argument values that have embedded spaces with double quotation marks.
Aliases: HELP, MAN
bruce_dev />
The command string supplied to HELP may include simple wildcards. For example:
bruce_dev /> help j*
----------
JAR filespec [pattern]
Options:
-C Check integrity
-T Lists library contents
-X Extracts library contents
-V Verbose
List/Extract files from a ZIP/JAR library.
Aliases: JAR, ZIP
----------
JAVA filespec [&]
Options:
& Executes in background ('&' must be last on the line)
filespec Either a .class file or .jar library containing classes to execute
Executes the given Java program.
----------
JRFLASH
Options:
-C Display cache status
-F Format (all data will be lost)
-R Perform reclamation pass
Displays Flash File System status.
----------
JRMON
options:
-C Enable control commands
-D Enable control including diagnostics functions
-M Monitors processor load
-X cmd Execute commands and return
I/O monitoring utility
----------
JRUPDATE
Options:
-U file Perform Field Firmware Update
-F Skip confirmation prompt
-P Reboot if successful
-R Rollback OS
-C Cancel pending update
Manage firmware updates.
bruce_dev />
Along these lines you can create your own HELP manual. Here we will send the HELP output to a file which I will attach.
bruce_dev /> help * > help.txt bruce_dev />