Exit Test Mode.tns

[Mariam Obregon]

Idownloaded the Exit_Test_Mode.tns from education.ti.com but the handheld

would NOT exit until the underscores were removed!!

Also, you are right about the capitalization also...spend about an hour

before I found this message.

> I guess I haven't thoroughly tested it, but I'm under the impression that

> this is one of the few times you really need to get capitalization correct.

>

> With the TI-Nspire Navigator or Connect-to-Class, use Transfer Tool (end

Monit is a utility for managing and monitoring processes, programs, files, directories and filesystems on a Unix system. Monit conducts automatic maintenance and repair and can execute meaningful causal actions in error situations. E.g. Monit can start a process if it does not run, restart a process if it does not respond and stop a process if it uses too much resources. You can use Monit to monitor files, directories and filesystems for changes, such as timestamps changes, checksum changes or size changes.

Monit is controlled via an easy to configure control file based on a free-format, token-oriented syntax. Monit logs to syslog or to its own log file and notifies you about error conditions via customisable alert messages. Monit can perform various TCP/IP network checks, protocol checks and can utilise SSL for such checks. Monit provides a HTTP(S) interface and you may use a browser to access the Monit program.

You can use Monit to monitor daemon processes or similar programs running on localhost. Monit is particularly useful for monitoring daemon processes, such as those started at system boot time. For instance sendmail, sshd, apache and mysql. In contrast to many other monitoring systems, Monit can act if an error situation should occur, e.g.; if sendmail is not running, monit can start sendmail again automatically or if apache is using too many resources (e.g. if a DoS attack is in progress) Monit can stop or restart apache and send you an alert message. Monit can also monitor process characteristics, such as how much memory or cpu cycles a process is using.

You can also use Monit to monitor files, directories and filesystems on localhost. Monit can monitor these items for changes, such as timestamps changes, checksum changes or size changes. This is also useful for security reasons - you can monitor the md5 or sha1 checksum of files that should not change and get an alert or perform an action if they should change.

Monit can monitor network connections to various servers, either on localhost or on remote hosts. TCP, UDP and Unix Domain Sockets are supported. Network test can be performed on a protocol level; Monit has built-in tests for the main Internet protocols, such as HTTP, SMTP etc. Even if a protocol is not supported you can still test the server because you can configure Monit to send any data and test the response from the server.

Monit can be used to test programs or scripts at certain times, much like cron, but in addition, you can test the exit value of a program and perform an action or send an alert if the exit value indicates an error. This means that you can use Monit to perform any type of check you can write a script for.

The behaviour of Monit is controlled by command-line options and a run control file, monitrc, the syntax of which we describe in a later section. Command-line options override .monitrc declarations.

Monit will detach from the terminal and run as a background process, i.e. as a daemon process. As a daemon, Monit runs in cycles; It monitor services, then goes to sleep for a configured period, then wakes up and start monitoring again in an endless loop.

Once you have Monit running as a daemon process, you can call Monit with one of the following arguments. Monit will then connect to the Monit daemon (on TCP port 127.0.0.1:2812 by default) and ask the Monit daemon to perform the requested action. In other words; calling monit without arguments starts the Monit daemon, and calling monit with arguments enables you to communicate with the Monit daemon process.

Start all services listed in the control file and enable monitoring for them. If the group option is set (-g), only start and enable monitoring of services in the named group ("all" is not required in this case).

Stop all services listed in the control file and disable their monitoring. If the group option is set, only stop and disable monitoring of the services in the named group ("all" is not required in this case).

Enable monitoring of the named service. The name is a service entry name from the monitrc file. Monit will also enable monitoring of all services this service depends on. You can use a regex pattern too (note that it is case insensitive).

Disable monitoring of the named service. The name is a service entry name from the monitrc file. Monit will also disable monitoring of all services that depends on this service. You can use a regex pattern too (note that it is case insensitive).

Report services state. The output can easily be parsed by scripts. Without options, prints a short overview of the state of all services managed by Monit. The option, up prints the number of all services in this state, down likewise and so on.

There are three kinds of tokens: grammar, numbers (i.e. decimal digit sequences) and strings. Strings can be either quoted or unquoted. A quoted string is bounded by double quotes and may contain whitespace (and quoted digits are treated as a string). An unquoted string is any whitespace-delimited token, containing characters and/or numbers.

Each service entry consists of the keywords check, followed by the service type. Each entry requires a unique descriptive name, which may be freely chosen. This name is used by Monit to refer to the service internally and in all interactions with the user. The name is case insensitive.

is the absolute path to the program's pid-file. A pid-file is a file, containing a Process's unique ID. If the pid-file does not exist or does not contain the PID number of a running process, Monit will call the entry's start method if defined.

is an alternative to using PID files and uses process name pattern matching to find the process to monitor. The top-most matching parent with highest uptime is selected, so this form of check is most useful if the process name is unique. Pid-file should be used where possible as it defines expected PID exactly. You can test if a process match a pattern from the command-line using monit procmatch "regex-pattern". This will lists all processes matching or not, the regex-pattern.

is the absolute path to the file. If the file does not exist, Monit will call the entry's start method if defined, if does not point to a regular file type (for instance a directory), Monit will disable monitoring of this entry. If Monit runs in passive mode or the start method is not defined, Monit will just send an alert on error.

is the absolute path to the fifo. If the fifo does not exist, Monit will call the entry's start method if defined, if does not point to a fifo type (for instance a directory), Monit will disable monitoring of this entry. If Monit runs in passive mode or the start method is not defined, Monit will just send an alert on error.

is the path to the device/disk, mount point or NFS/CIFS/FUSE connection string. If the filesystem becomes unavailable, Monit will call the service's start method if defined. If Monit runs in passive mode or the start method is not defined, Monit will just send an alert on error.

is the absolute path to the directory. If the directory does not exist, Monit will call the entry's start method if defined. If does not point to a directory, monit will disable monitoring of this entry. If Monit runs in passive mode or the start methods is not defined, Monit will just send an alert on error.

The unique name is usually the local host name, but any descriptive name can be used. If you use the variable $HOST as the name, it will expand to the hostname. This check allows one to monitor general system resources such as CPU usage, total memory usage or load average. The unique name is used as the system hostname in mail alerts and as the initial name of the host entry in M/Monit.

is the absolute path to the executable program or script. The status test allows one to check the program's exit status. If the program does not finish executing within seconds, Monit will terminate it. The default program timeout is 300 seconds (5 minutes). The output of the program is recorded and made available in the User Interface and in alerts, by default up to 512 bytes. You can change the output limit using the set limits statement).

If syslog is given as a value for the -l command-line switch or the keyword set log syslog is found in the control file, Monit will use the syslog system daemon to log messages with a priority assigned to each message based on the context.

If you want to process the monit CLI output in a script, you can use either the -B option or use the following statement in the monit configuration file to disable tabular output and colors completely:

In daemon mode, Monit detaches from the console, puts itself in the background and runs continuously, monitoring each specified service and then goes to sleep for the given poll interval, wakes up and start monitoring again in an endless cycle.

Monit will then always start in daemon mode. If you do not use this statement and do not start monit with the -d option, Monit will just run through the service checks once and then exit. This might be useful in some situations, but Monit is primarily designed to run as a daemon process.

Calling monit with a Monit daemon running in the background sends a wake-up signal to the daemon, forcing it to check services immediately. Calling monit with the quit argument will kill a running Monit daemon process instead of waking it up.

This is required to run Monit from init. Using init to start Monit is probably the best way to run Monit if you want to be certain that you always have a running Monit daemon on your system. Another option is to run Monit from crontab. In any case, you should make sure that the control file does not have any syntax errors before you start Monit from init or crontab (use monit -t to check).

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