install
FilesPackage: coreutils
Copies a file while setting owner, group and mode in one command — install -o root -g root -m 0644. It is cp then chown then chmod, without the window where the file has the wrong rights.
What its options do in the lessons
From the same glossary the lessons render under their commands, so the two cannot disagree.
install -m- The installed file’s mode, in octal, applied as part of the copy.
install -m 640avoids the window where the file exists with wider permissions before achmod. install -o- The installed file’s owner.
install -g- The installed file’s group.
install -d- Creates a directory instead of copying a file, with the given mode and owner set at creation.
install -d -m 0700opens an extraction directory without the window of amkdirfollowed by achmod.