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                      Bedrock Linux

Bedrock Linux 1.0beta1 Hawky


© Bedrock Linux 2012-2020
Linux® is a registered
trademark of Linus Torvalds

Bedrock Linux 1.0beta1 Hawky Command Overview

brc ("BedRock Change local Context")

The way Bedrock Linux resolves potential conflicts between packages from different distributions is by having multiple instances of such files. This can mean multiple versions of any given executable will be present. When a user runs a command, a specific rule set will decide which instance of an executable is run if multiple are available. To bypass this rule set and explicitly specify which is to be run one can use the brc command.

If firefox is installed in multiple clients (such as Arch and Fedora), and the user would like to specify which is to run (rather than allowing Bedrock Linux to chose the default), one can explicitly call brc, like so: brc fedora firefox.

If no command is given, brc will attempt to use the user's current $SHELL. If the value of $SHELL is not available in the client it will fall back to /bin/sh.

bri ("BedRock Information")

The bri command will provide information about the clients based on which flag is used.
- bri -c will print Config values for the specified client. - bri -C will Cache -n value of current OR following client name(s) (requires root), providing a small performance improvement to following bri -n and brw requests - bri -h will print the Help - bri -l will print List of enabled clients - bri -L will print List of all clients, enabled and disabled - bri -m will prints Mount points in current client OR following client name(s) - bri -n will print Name of client corresponding to current process - bri -p will print the client that provides the following Process id or (non-numeric) Process name - bri -P will print a list of Processes provided by the current client OR following client name(s) - bri -s will print the setup Status of the current OR following client name(s) - bri -w will print the client Which provides the command(s) in the argument(s)

brl ("BedRock aLl")

The brl command will run its argument in the local context of all enabled clients.

Examples:

Attempt to ping google ito check if networking is working

brl ping -c 1 google.com

Run 'apt-get update && apt-get dist-upgrade' with the apt-get from all clients that have apt-get available in the local context.

brl -c 'brw apt-get|grep "(direct)$"' sh -c 'apt-get update && apt-get dist-upgrade'

List all of the pids and their corresponding clients. Can append | sort -n to sort by pid.

brl bri -P | grep -v "brl\|bri"

brsh ("BedRock SHell")

/etc/passwd requires the full path to the user's desired shell. While this is available through via implicit access through /bedrock/brpath/bin/shell, due to how the implicit subsystem is currently implemented any indication that the shell is a login shell is lost.

To resolve this, Bedrock Linux provides a meta-shell, brsh, which simply calls the shell configured in ~/.brsh.conf.

brw ("Bedrock Where")

The brw command is simply an alias to parts of bri. Without any arguments, brw will print the name of the current client (bri -n). If arguments are provided, it will indicate which client provides the listed command(s) (bri -w).

brp ("BedRock Path")

The brp executable is responsible for maintaining the /bedrock/brpath directory and thus allowing implicit file access. This is typically launched during boot; end-users will rarely ever have to run it directly. It is configured via /bedrock/etc/brp.conf.

brs ("BedRock Setup")

brs can be used to enable and disable clients. After enabling or disabling a client, it will inform brp to update its internal list of clients.

To enable clients, run:

`brs enable clients`

To disable:

brs disable clients

To disable then reenable:

brs reenable clients

If config/frameworks have changed since a client was enabled, if one would like to add new mount items to a running client without disabling it, one can do this like so:

brs update clients

Note that \brs update\ may miss things such as subshare items and new components of a union item.

bru ("Bedrock Union filesystem")

The bru command will mount a filesystem, unioning the contents of two directories. Specifically, it implements the required functionality for the union client.conf setting Like brp this is mostly managed by the system and it is unlikely the end-user will need to run this directly.