DevOps Scripts

I created this repo to keep track of extremely useful scripts and to hopefully add some benefit to others. Please feel free to fork / contribute.

master_functions.sh functions

ask_question

Asks a question and echoes the user input.

ask_yes_no

Asks a yes/no question and echoes true or false. It will continue to ask the user for input until they respond with one of the folllwing: y, yes, n or no.

downcase

Replaces all uppercase letters with their lowercase counterparts.

#!/bin/bash

echo "Hello Motto" | downcase
# => hello motto

err_msg

This is a simple abstraction that wraps echo, higlights text in red and is redirected to stderr.

fail_msg

This is identical to err_msg except that it exits 1 after echoing the error message.

gsub

lstrip

Removes all leading whitespace. See also rstrip and strip.

#!/bin/bash

echo " Hello Motto" | lstrip
# => Hello Motto

msg

This is a simple abstraction that wraps echo.

rstrip

Removes all trailing whitespace. See also lstrip and strip.

#!/bin/bash

echo "Hello Motto " | rstrip
# => Hello Motto

strip

Removes all leading and trailing whitespace.

Whitespace is defined as any of the following characters: null, horizontal tab, line feed, vertical tab, form feed, carriage return, space.

#!/bin/bash

echo " Hello Motto " | strip
# => Hello Motto

succ_or_fail

Echoes success! or failed! based on $?.

upcase

Replaces all lowercase letters with their uppercase counterparts.

#!/bin/bash

echo "Hello Motto" | upcase
# => HELLO MOTTO