cut off all whitespace from end of file bash code example

Example 1: bash strip preceeding white space

# Basic syntax:
sed 's/^ *//g'

# Example usage:
echo '                    text' # Printing without sed command
-->                     text
echo '                    text' | sed 's/^ *//g' # Pipe to sed command
--> text

Example 2: remove spaces in wc output'

awk '{$1=$1;print}'