Slacktail

Slacktail is a single-purpose command line utility for following messages sent to your Slack organization chat.

$ gem install slacktail

1. Obtain an API key from Slack. In your Slack settings, go to Custom Integrations and create a new Bot Application. Then, find the API Token in the bot's configuration page.

2. Set the SLACK_API_TOKEN environemnt variable to the API Token. This should probably be set in your ~/.bashrc, with export SLACK_API_TOKEN=<your token>

3. Invite your bot to any channel you want to monitor. Type /invite @<botname> in any channel.

Follow all channels:

$ slacktail

Follow specific channels:

$ slacktail general development lobby

Full Usage Help:

$ slacktail --help
Show and follow slack messages in real time

Usage:
  slacktail [CHANNELS...]
  slacktail (-h|--help|--version)

Options:
  -h --help
    Show this help

  --version
    Show version number

Parameters:
  CHANNELS
    Channels to follow

Examples:
  slacktail
  slacktail general debug