### Install jq and gnupg on Linux

Source: https://tofuutils.github.io/tofuenv

Installs jq (required) and gnupg (optional) using apt-get.

```console
sudo apt-get update -y
sudo apt-get install -y jq gnupg 
```

--------------------------------

### Install tofuenv via Homebrew

Source: https://tofuutils.github.io/tofuenv

Use Homebrew to install tofuenv by tapping the tofuutils repository and then installing the package.

```console
brew tap tofuutils/tap
brew install tofuenv
```

--------------------------------

### Install specific OpenTofu versions

Source: https://tofuutils.github.io/tofuenv

Demonstrates installing specific OpenTofu versions using various syntaxes.

```console
tofuenv install 1.6.0-rc1 
```

```console
tofuenv install latest:^1.6 
```

```console
tofuenv install latest-allowed 
```

```console
tofuenv install min-required 
```

--------------------------------

### Install Git-Bash on Windows

Source: https://tofuutils.github.io/tofuenv

Install Git-Bash using winget, a command-line package manager for Windows.

```console
winget install --id Git.Git -e --source winget
```

--------------------------------

### List Remote Installable OpenTofu Versions

Source: https://tofuutils.github.io/tofuenv

Lists all OpenTofu versions that are available for installation from the remote repository.

```bash
tofuenv list-remote
```

--------------------------------

### Install jq on Windows (Git Bash)

Source: https://tofuutils.github.io/tofuenv

Downloads and installs the jq executable for Windows within the Git Bash environment.

```console
curl -L -o /usr/bin/jq.exe https://github.com/jqlang/jq/releases/latest/download/jq-win64.exe 
```

--------------------------------

### Install jq and gnupg on macOS

Source: https://tofuutils.github.io/tofuenv

Installs jq (required) and gnupg (optional) using Homebrew.

```console
brew install jq gnupg grep 
```

--------------------------------

### Enable Auto Installation

Source: https://tofuutils.github.io/tofuenv

Enable automatic installation of OpenTofu versions if they are not found locally when using 'tofu use'.

```console
TOFUENV_AUTO_INSTALL=true tofu use
```

--------------------------------

### Example .opentofu-version File Usage

Source: https://tofuutils.github.io/tofuenv

Demonstrates how the .opentofu-version file is used to specify OpenTofu versions. It shows setting specific versions, 'latest', and using regex patterns, as well as overriding with TOFUENV_TOFU_VERSION.

```bash
cat .opentofu-version
1.6.0-beta5
tofu version
OpenTofu v1.6.0-beta5 on darwin_amd64
echo 1.6.0-alpha5 > .opentofu-version
tofu version
OpenTofu v1.6.0-alpha5 on darwin_amd64
echo latest:^1.6 > .opentofu-version
tofu version
OpenTofu v1.6.0-rc1 on darwin_amd64
TOFUENV_TOFU_VERSION=1.6.0-alpha1 tofu --version
tofu v1.6.0-alpha1 on darwin_amd64
```

--------------------------------

### Install tofuenv via AUR (git clone)

Source: https://tofuutils.github.io/tofuenv

Install tofuenv from the Arch User Repository by cloning the repository and using makepkg.

```console
git clone https://aur.archlinux.org/tofuenv.git
cd tofuenv
makepkg -si
```

--------------------------------

### Install tofuenv via AUR (yay)

Source: https://tofuutils.github.io/tofuenv

Install tofuenv from the Arch User Repository using the yay helper.

```console
yay --sync tofuenv
```

--------------------------------

### List Installed OpenTofu Versions

Source: https://tofuutils.github.io/tofuenv

Lists all installed OpenTofu versions. The currently active version is indicated with an asterisk.

```bash
tofuenv list
```

--------------------------------

### Install Specific Architecture

Source: https://tofuutils.github.io/tofuenv

Specify a non-default architecture for OpenTofu installation using the TOFUENV_ARCH variable.

```console
TOFUENV_ARCH=arm64 tofuenv install 0.7.9
```

--------------------------------

### Manually install tofuenv on Windows (Git-Bash)

Source: https://tofuutils.github.io/tofuenv

Clone the tofuenv repository within the Git-Bash environment and add its bin directory to your PATH.

```console
git clone --depth=1 https://github.com/tofuutils/tofuenv.git ~/.tofuenv
echo 'export PATH=$PATH:$HOME/.tofuenv/bin' >> ~/.bashrc
```

--------------------------------

### Manually install tofuenv on Linux/macOS

Source: https://tofuutils.github.io/tofuenv

Clone the tofuenv repository to a local directory and add its bin directory to your PATH.

```console
git clone --depth=1 https://github.com/tofuutils/tofuenv.git ~/.tofuenv
```

--------------------------------

### Disable Auto Installation

Source: https://tofuutils.github.io/tofuenv

Disable automatic installation of OpenTofu versions. This will cause tofuenv to exit if the requested version is not installed.

```console
$ TOFUENV_AUTO_INSTALL=false tofuenv use 1.6.0-beta3
No installed versions of opentofu matched '^1.6.0-beta3$'.
TOFUENV_AUTO_INSTALL is set to false, so exiting.
```

--------------------------------

### Enable GPG verification for OpenTofu installation

Source: https://tofuutils.github.io/tofuenv

Configures tofuenv to use GPG for signature verification by creating a 'use-gpgv' file.

```console
echo 'trust-tofuenv: yes' > ${TOFUENV_INSTALL_DIR}/use-gpgv
tofuenv install 
```

--------------------------------

### Specify Custom Remote

Source: https://tofuutils.github.io/tofuenv

Install OpenTofu from a remote URL other than the default GitHub releases using TOFUENV_REMOTE.

```console
TOFUENV_REMOTE=https://example.jfrog.io/artifactory/opentofu
```

--------------------------------

### Skip Listing Remote Versions

Source: https://tofuutils.github.io/tofuenv

Skip the step of listing remote versions during installation, useful for custom remotes like Artifactory.

```console
TOFUENV_SKIP_LIST_REMOTE=1 tofuenv install 1.6.0-rc1
```

--------------------------------

### Verify tofuenv installation on Linux/macOS

Source: https://tofuutils.github.io/tofuenv

Check if the tofuenv executable is found in your PATH.

```console
which tofuenv
```

--------------------------------

### Get Current OpenTofu Version Name

Source: https://tofuutils.github.io/tofuenv

Prints the version of OpenTofu currently being used in the directory. This is resolved automatically from environment variables or .opentofu-version files.

```bash
tofuenv version-name
```

--------------------------------

### Uninstall Tofuenv

Source: https://tofuutils.github.io/tofuenv

Command to completely remove the tofuenv installation.

```bash
rm -rf /some/path/to/tofuenv
```

--------------------------------

### Set Custom Eval Prefix for Console Output

Source: https://tofuutils.github.io/tofuenv

Use BASHLOG_I_PROMISE_TO_BE_CAREFUL_CUSTOM_EVAL_PREFIX to define a command that generates a prefix for console output and file log entries. The example shows prefixing with the calling process's PID.

```bash
BASHLOG_I_PROMISE_TO_BE_CAREFUL_CUSTOM_EVAL_PREFIX='echo "${$$} " '
```

--------------------------------

### Enable JSON Logging to File

Source: https://tofuutils.github.io/tofuenv

Set BASHLOG_JSON to 1 to enable JSON formatted logging. Logs are written to individual files named like /tmp/<script_name>.log.json. The example demonstrates enabling JSON logging for the 'tofuenv use latest' command.

```bash
BASHLOG_JSON=1 tofuenv use latest
```

--------------------------------

### Create symlinks for tofuenv binaries in ~/.local/bin

Source: https://tofuutils.github.io/tofuenv

Create symbolic links for tofuenv binaries into ~/.local/bin and ensure it's in your PATH. This is useful for Ubuntu/Debian systems.

```console
mkdir -p ~/.local/bin/
. ~/.profile
ln -s ~/.tofuenv/bin/* ~/.local/bin/
```

--------------------------------

### Create symlinks for tofuenv binaries

Source: https://tofuutils.github.io/tofuenv

Create symbolic links for tofuenv binaries into a directory already in your PATH, such as /usr/local/bin. This is for OSX/Linux only.

```console
ln -s ~/.tofuenv/bin/* /usr/local/bin
```

--------------------------------

### Launch Git-Bash environment on Windows

Source: https://tofuutils.github.io/tofuenv

Launch the Git-Bash shell environment by executing its sh.exe.

```console
"C:\Program Files\Git\bin\sh.exe"
```

--------------------------------

### Detect minimum required OpenTofu version from .opentofu-version file

Source: https://tofuutils.github.io/tofuenv

Illustrates how a .opentofu-version file with a required_version constraint is parsed to detect the minimum required OpenTofu version.

```hcl
terraform {
  required_version  = "<0.12.3, >= 0.10.0"
}

```

--------------------------------

### Switch OpenTofu Version

Source: https://tofuutils.github.io/tofuenv

Use this command to switch to a specific OpenTofu version. If no version is provided, it defaults to resolving via .opentofu-version files or TOFUENV_TOFU_VERSION environment variable.

```bash
tofuenv use
tofuenv use min-required
tofuenv use 0.7.0
tofuenv use latest
tofuenv use latest:^0.8
tofuenv use latest-allowed
```

--------------------------------

### Detect latest allowed OpenTofu version from .opentofu-version file

Source: https://tofuutils.github.io/tofuenv

Shows how a .opentofu-version file with a version constraint is parsed to detect the latest allowed OpenTofu version.

```hcl
terraform {
  required_version  = "~> 0.10.0, <0.12.3"
}

```

--------------------------------

### Override default GPG binary for verification

Source: https://tofuutils.github.io/tofuenv

Allows overriding the default GPG binary used for verification by specifying a custom path and key file in the 'use-gpgv' file.

```console
echo 'binary: gpgv --keyring ./path/to/gpg/opentofu.gpg' > ${TOFUENV_INSTALL_DIR}/use-gpgv
tofuenv install 
```

--------------------------------

### Handle Reversed Remote Version Order

Source: https://tofuutils.github.io/tofuenv

Enable reversed remote version listing for custom remotes that provide versions in oldest-to-newest order, ensuring 'latest' functionality works.

```console
TOFUENV_REVERSE_REMOTE=1 tofuenv list-remote
```

--------------------------------

### Enable File Logging

Source: https://tofuutils.github.io/tofuenv

Enable plain text logging to a file for the Bashlog library by setting BASHLOG_FILE to 1. Logs are typically stored in /tmp.

```console
BASHLOG_FILE=1 tofuenv use latest
```

--------------------------------

### Pin Current OpenTofu Version

Source: https://tofuutils.github.io/tofuenv

Writes the currently active OpenTofu version to a ./.opentofu-version file. This command creates the file if it does not exist.

```bash
tofuenv pin
```

--------------------------------

### Add tofuenv to PATH for WSL Bash

Source: https://tofuutils.github.io/tofuenv

Append the tofuenv bin directory to your PATH in the .bashrc for WSL environments.

```bash
echo 'export PATH=$PATH:$HOME/.tofuenv/bin' >> ~/.bashrc
```

--------------------------------

### Set Custom Config Directory

Source: https://tofuutils.github.io/tofuenv

Specify a custom directory for tofuenv configuration and local OpenTofu versions using TOFUENV_CONFIG_DIR.

```console
TOFUENV_CONFIG_DIR="$XDG_CONFIG_HOME/tofuenv"
```

--------------------------------

### Add tofuenv to PATH for Bash

Source: https://tofuutils.github.io/tofuenv

Append the tofuenv bin directory to your PATH in the .bash_profile for persistent access.

```bash
echo 'export PATH="$HOME/.tofuenv/bin:$PATH"' >> ~/.bash_profile
```

--------------------------------

### Add tofuenv to PATH for Zsh

Source: https://tofuutils.github.io/tofuenv

Append the tofuenv bin directory to your PATH in the .zprofile for persistent access.

```zsh
echo 'export PATH="$HOME/.tofuenv/bin:$PATH"' >> ~/.zprofile
```

--------------------------------

### Specify Netrc Credentials File

Source: https://tofuutils.github.io/tofuenv

Provide a path to a .netrc file for authentication with remote locations when using TOFUENV_REMOTE.

```console
TOFUENV_NETRC_PATH="$PWD/.netrc.tofuenv"
```

--------------------------------

### Upgrade Tofuenv

Source: https://tofuutils.github.io/tofuenv

Command to upgrade the tofuenv tool itself using git.

```bash
git --git-dir=~/.tofuenv/.git pull
```

--------------------------------

### Uninstall OpenTofu Version

Source: https://tofuutils.github.io/tofuenv

Uninstall a specific OpenTofu version. You can use 'latest' or a regex pattern with 'latest:' to uninstall the latest matching version.

```bash
tofuenv uninstall 0.7.0
tofuenv uninstall latest
tofuenv uninstall latest:^0.8
```

--------------------------------

### Syslog Logging Functionality

Source: https://tofuutils.github.io/tofuenv

Configure syslog logging by setting BASHLOG_SYSLOG to 1. This snippet shows the basic structure for sending logs to syslog using the 'logger' binary, including tag, facility, and severity.

```bash
local tag="${BASHLOG_SYSLOG_TAG:-$(basename "${0}")}"
local facility="${BASHLOG_SYSLOG_FACILITY:-local0}"
local pid="${$}"
logger --id="${pid}" -t "${tag}" -p "${facility}.${severity}" "${syslog_line}"
```

--------------------------------

### Specify Log File Path

Source: https://tofuutils.github.io/tofuenv

Define a specific file path for all FILE type logging in the Bashlog library using BASHLOG_FILE_PATH.

```console
BASHLOG_FILE_PATH=/tmp/$(basename ${0}).log
```

--------------------------------

### Override OpenTofu Version

Source: https://tofuutils.github.io/tofuenv

Override the OpenTofu version specified in .opentofu-version files or by defaults using TOFUENV_TOFU_VERSION. Supports 'latest' and version prefixes.

```console
TOFUENV_TOFU_VERSION=latest:^0.11. tofu --version
```

--------------------------------

### Disable Bashlog Colors

Source: https://tofuutils.github.io/tofuenv

Disable colored output in the Bashlog logging library by setting BASHLOG_COLOURS to 0.

```console
BASHLOG_COLOURS=0
```

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