Table of Contents
Quick FreeBSD Tricks
In several places, I have simply inserted the code as a script to be downloaded. I tend to keep things like this around so I can just run a simple command instead of copying/pasting an entire line.
To locate all attached drives, scan dmesg.boot
#! /bin/sh egrep '(ad|cd|da)[0-9]' /var/run/dmesg.boot | sort
iotop is a well known utility under Linux, but not available for FreeBSD. However, the following command will do the same thing (does not apparently work for iSCSI devices)
top -m io -o total
Under Linux, watch repeats a command over and over, so it is useful for monitoring long running processes. The FreeBSD command cmdwatch does the same thing, with the same flags.
cmdwatch zpool iostat -v
setting pkg to not ask permission
I was used to Debian's apt-get, and used the -y (answer “Yes” to all questions) parameter. Looking for something similar for pkg, I ran across http://dan.langille.org/2013/12/06/bootstrapping-installing-pkg-on-freebsd-unattended-and-without-answering-yes/ which showed a possible answer; set an environmental variable as part of the call.
env ASSUME_ALWAYS_YES=YES pkg install p5-libwww
will install LWP (p5-libwww) without waiting for you to select “Yes”
clean pkg cache
After a while, your pkg cache will use more and more space on your disk, with copies of packages you have already installed. The following command cleans that cache.
By default, a new user is not able to become root. To do this, you must add them to the wheel group. Use the following command
pw user mod username -G wheel
where username is the username of the user who has access
I just like bash for my shell. While it is not the standard for BSD, it is much more powerful than the standard sh, so I like to use it for my personal account. Once bash is installed, set it as the default shell for a user.
chsh -s bash username
Warning: do not modify the root account's shell. You will break your system. If you want a bash script to run as root, be sure to include
#! /usr/bin/env bash
at the head of your scripts.
- zfs unshare -a
- zfs share -a
- showmount -e