Calculate total disk usage / size for a folder
du -sh <folder>
Ignore specified files and directories when calculating size
du -sh -I <ignore-pattern> <folder>
Show disk space usage and available space (-h makes the output human readable values)
df -h
Find files under the root directory and below that are larger than 10 MB (optionally ignore .git directories)
find <path> -size +10M
find <path> -size +10M -not -path '*/\.git/*'
Format output when using GNU find (Note: -printf is not POSIX)
find <path> -size +10M -printf "%s - %p\n"
Show ten largest files and directories under current location
du . | sort -nr | head -n10
du -s * | sort -nr | head -n10
Calculate size of files in git repo (ignoring git directory)
du -sh -I .git <folder>