NAME
install - copy files and set attributes
SYNOPSIS
install [options] [-s] [--strip] source dest
install [options] [-s] [--strip] source... directory
install [options] [-d,--directory] directory...
Options (shortest form):
[-b] [-c] [-g group] [-m mode] [-o owner] [-S SUFFIX] [-V
{numbered,existing,simple}] [--help] [--version] [--]
DESCRIPTION
install copies files while setting their permission modes
and, if possible, their owner and group.
In the first of these invocation forms, the source file is
copied to the dest target file. In the second, each of the
source files are copied to the destination directory. In
the last, each directory (and any missing parent direc-
tories) is created.
install is similar to cp, but allows you to control the
attributes of destination files. It is typically used in
Makefiles to copy programs into their destination direc-
tories. It refuses to copy files onto themselves.
OPTIONS
-c Ignored; for compatibility with old Unix versions of
install.
-d, --directory
Create each given directory and any missing parent
directories, setting the owner, group and mode as given
on the command line or to the defaults. It also gives
any parent directories it creates those attributes.
(This is different from the SunOS 4.x install, which
gives directories that it creates the default attri-
butes.)
-g group, --group=group
Set the group ownership of installed files or direc-
tories to group. The default is the process's current
group. group may be either a group name or a numeric
group id.
-m mode, --mode=mode
Set the permissions for the installed file or directory
to mode, which can be either an octal number, or a sym-
bolic mode as in chmod, with 0 as the point of depar-
ture. The default mode is 0755 - read, write, and exe-
cute for the owner, and read and execute for group and
other.
-o owner, --owner=owner
If install has appropriate privileges (is run as root),
set the ownership of installed files or directories to
owner. The default is `root'. owner may be either a
user name or a numeric user ID.
-s, --strip
Strip the symbol tables from installed binary execut-
ables.
GNU BACKUP OPTIONS
The GNU versions of programs like cp, mv, ln, install and
patch will make a backup of files about to be overwritten,
changed or destroyed if that is desired. That backup files
are desired is indicated by the -b option. How they should
be named is specified by the -V option. In case the name of
the backup file is given by the name of the file extended by
a suffix, this suffix is specified by the -S option.
-b, --backup
Make backups of files that are about to be overwritten
or removed.
-S SUFFIX, --suffix=SUFFIX
Append SUFFIX to each backup file made. If this option
is not specified, the value of the SIMPLE_BACKUP_SUFFIX
environment variable is used. And if
SIMPLE_BACKUP_SUFFIX is not set, the default is `~'.
-V METHOD, --version-control=METHOD
Specify how backup files are named. The METHOD argument
can be `numbered' (or `t'), `existing' (or `nil'), or
`never' (or `simple'). If this option is not speci-
fied, the value of the VERSION_CONTROL environment
variable is used. And if VERSION_CONTROL is not set,
the default backup type is `existing'.
This option corresponds to the Emacs variable
`version-control'. The valid METHODs are (unique
abbreviations are accepted):
t, numbered
Always make numbered backups.
nil, existing
Make numbered backups of files that already have
them, simple backups of the others.
never, simple
Always make simple backups.
GNU STANDARD OPTIONS
--help
Print a usage message on standard output and exit suc-
cessfully.
--version
Print version information on standard output, then exit
successfully.
-- Terminate option list.
ENVIRONMENT
The variables LANG, LC_ALL, LC_CTYPE and LC_MESSAGES have
the usual meaning. For the GNU version, the variables
SIMPLE_BACKUP_SUFFIX and VERSION_CONTROL control backup file
naming, as described above.
CONFORMING TO
BSD 4.2 (which had the -c, -m, -o, -g and -s options).
NOTES
This page describes install as found in the fileutils-3.16
package; other versions may differ slightly. Mail correc-
tions and additions to aeb@cwi.nl and aw@mail1.bet1.puv.fi
and ragnar@lightside.ddns.org . Report bugs in the program
to fileutils-bugs@gnu.ai.mit.edu.