2023-02-02 12:41:30 +01:00
# obitools V4
2022-01-13 23:15:22 +01:00
2023-02-02 12:41:30 +01:00
*OBITools V4* is the new version of *OBITools* . They are closer to *OBITools2* than to *OBITools3* .
They are implemented in *GO* and are tens of times faster than OBITools2.
The git for *OBITools4* is available at :
> https://metabarcoding.org/obitools4
## Installing *OBITools V4*
An installation script that compiles the new *OBITools* on your Unix-like system is available online.
The easiest way to run it is to copy and paste the following command into your terminal
```{bash}
curl -L https://metabarcoding.org/obitools4/install.sh | bash
```
By default, the script installs the *OBITools* commands and other associated files into the `/usr/local` directory.
The names of the commands in the new *OBITools4* are mostly identical to those in *OBITools2* .
Therefore, installing the new *OBITools* may hide or delete the old ones. If you want both versions to be
available on your system, the installation script offers two options:
> -i, --install-dir Directory where obitools are installed
> (as example use `/usr/local` not `/usr/local/bin`).
>
> -p, --obitools-prefix Prefix added to the obitools command names if you
> want to have several versions of obitools at the
> same time on your system (as example `-p g` will produce
> `gobigrep` command instead of `obigrep`).
You can use these options by following the installation command:
```{bash}
curl -L https://metabarcoding.org/obitools4/install.sh | \
bash -s -- --install-dir test_install --obitools-prefix k
```
In this case, the binaries will be installed in the `test_install` directory and all command names will be prefixed with the letter `k` . Thus `obigrep` will be named `kobigrep` .
