# FreeBSD Cheat Sheet

A collection of commands I use frequently and still don't remember.

## pkg

### Display the message after first installing the application

```sh
pkg show -D <pkg_name>
```

## iocage

### Setup a new jail with vnet

```sh
iocage create -n <jailname> ip4_addr="10.192.0.28/24" defaultrouter="10.192.0.1" allow_raw_sockets=1 vnet=on boot=on interfaces="vnet0:em0bridge" -r 13.2-RELEASE
```

## zfs

### Show holds on a specific snapshot

If snapshots return as dataset is busy upon deletion, they are either dependent or use a tag that prevents them from being deleted. The command below will display any holds on a snapshot.

```sh
zfs holds -r <snapshot_name>
```

To release the snapshot from a tag

```sh
zfs release -r <tag_name> <snapshot_name>
```

### Migrate dataset to new pool

```sh
zfs snapshot -r old_pool/<dataset_name>@relocate
zfs send -Rv old_pool/<dataset_name>@relocate | zfs receive -d new_pool/<new_dataset_name>
```

## tcsh

### Execute command from history

```sh
history | grep <command>
!<id command>
```