machstat Command
Purpose
Reports the value of the first 4 bits of the power status register.
Syntax
Description
The machstat command returns the value of a status register. There is no standard output or error except when using the -f flag on CHRP hardware.
Flags
| Item | Description |
|---|---|
| -f | On non-CHRP machines, returns Power Status Register bits 10–13. On CHRP machines, displays the EPOW status, EPOW modifier, and, if present, EPOW version. |
| -p | Returns the first 4 bits of the power status register. |
Exit Status
The machstat command returns a value of 255 if an error occurs. Otherwise it returns the value of the register.
Security
Access Control: root only
Attention RBAC users: This command can
perform privileged operations. Only privileged users can run privileged operations. For more
information about authorizations and privileges, see Privileged Command Database in Security. For a list of privileges and the
authorizations that are associated with this command, see the lssecattr
command or the getcmdattr subcommand.
Examples
To see the current value of the power status register, enter:
machstat -p
echo $?Files
| Item | Description |
|---|---|
| /etc/rc.powerfail | Shuts down a system when a power failure is detected |