Answer by Sundeep for find and remove files bigger than a specific size and type

find -type f \( -name "*zip" -o -name "*tar" -o -name "*gz" \) -size +1M -delete

• the \( \) construct allows to group different filename patterns
• by using -delete option, we can avoid piping and troubles with xargs See this, this and this
• ./ or . is optional when using find command for current directory

Edit: As Eric Renouf notes, if your version of find doesn't support the -delete option, use the -exec option

find -type f \( -name "*zip" -o -name "*tar" -o -name "*gz" \) -size +1M -exec rm {} +

where all the files filtered by find command is passed to rm command