help
quotacheck
Quotacheck Linux command manual page and help. The quotacheck command examines each file system, compiles a table of current disk usage, and compares this table with the table recorded in the file system's disk quota file (this step is omitted if the -c option is specified). If any inconsistencies are detected, both the quota file and the current system copy of the faulty quotas are updated (the latter only occurs if you are checking an active file system, which is not recommended). By default, only user quotas are checked. Quotacheck expects each checked filesystem to have a quota file named [a]quota.user and a file named [a]quota.group at the root of the associated filesystem. If a file is not present, quotacheck will create it.
git-apply
The manual page and help for the git apply Linux command. The git apply command reads the supplied diff output (ie "a patch") and applies it to the files. When running from a subdirectory of a package, fixed paths outside the directory are ignored. With the --index option, the patch is also added to the index, and with the --cached option, only to the index. Without these options, the command only applies the patch to the files and does not require them to be in a Git repository.