mattermost_process_file.sh

#!/bin/bash

# Mattermost File Processor Script
#
# This script allows you to run a Mattermost command against a list of IDs stored in a text file

# How to use it
#
# 1. Get a list of the identifiers for the items you want to process in a text file. More details on the 
# 2. Get the mattermost command you want to run from https://docs.mattermost.com/administration/command-line-tools.html
# 3. Run the script like this to process every line in the file:
#    $ mattermost_process_file.sh "<Mattermost command>" <path to identifiers file

# Examples

# Remove many users from a specific channel
#   - users.txt contains a list of email addresses, usernames, or user IDs
#   - Mattermost command is "channel remove teamname:channelname"
#
#   $ mattermost_process_file.sh "channel remove teamname:channelname" users.txt
#

# Notes

# If your Mattermost binary is not located at /opt/mattermost/bin/mattermost change the value on line 32

mattermost_cmd=$1

$ids_file=$2

while read id;  do
	/opt/mattermost/bin/mattermost $mattermost_cmd $id;
done <$ids_file