INSTALL(1)                   General Commands Manual                  INSTALL(1)

     install – install binaries

     install [-bCcMpSsv] [-B suffix] [-f flags] [-g group] [-m mode] [-o owner]
             file1 file2
     install [-bCcMpSsv] [-B suffix] [-f flags] [-g group] [-m mode] [-o owner]
             file1 ... fileN directory
     install -d [-v] [-g group] [-m mode] [-o owner] directory ...

     The file(s) are copied to the target file or directory.  If the destination
     is a directory, then the file is copied into directory with its original
     filename.  If the target file already exists, it is either renamed to
     file.old if the -b option is given or overwritten if permissions allow.  An
     alternate backup suffix may be specified via the -B option's argument.

     The options are as follows:

     -B suffix
             Use suffix as the backup suffix if -b is given.

     -b      Back up any existing files before overwriting them by renaming them
             to file.old.  See -B for specifying a different backup suffix.

     -C      Copy the file.  If the target file already exists and the files are
             the same, then don't change the modification time of the target.

     -c      Copy the file.  This is actually the default.  The -c option is
             only included for backwards compatibility.

     -d      Create directories.  Missing parent directories are created as

     -f      Specify the target's file flags; see chflags(1) for a list of
             possible flags and their meanings.

     -g      Specify a group.  A numeric GID is allowed.

     -M      Disable all use of mmap(2).

     -m      Specify an alternate mode.  The default mode is set to rwxr-xr-x
             (0755).  The specified mode may be either an octal or symbolic
             value; see chmod(1) for a description of possible mode values.

     -o      Specify an owner.  A numeric UID is allowed.

     -p      Preserve the modification time.  Copy the file, as if the -C
             (compare and copy) option is specified, except if the target file
             doesn't already exist or is different, then preserve the
             modification time of the file.

     -S      Safe copy.  Normally, install unlinks an existing target before
             installing the new file.  With the -S flag a temporary file is used
             and then renamed to be the target.  The reason this is safer is
             that if the copy or rename fails, the existing target is left

     -s      install exec's the command strip(1) to strip binaries so that
             install can be portable over a large number of systems and binary

     -v      Causes install to show when -C actually installs something.

     By default, install preserves all file flags, with the exception of the
     “nodump” flag.

     The install utility attempts to prevent moving a file onto itself.

     Installing /dev/null creates an empty file.

     The install utility exits 0 on success, and 1 otherwise.

     INS@XXXX  If either -S option is specified, or the -C or -p option is used
               in conjuction with the -s option, temporary files named INS@XXXX,
               where XXXX is decided by mkstemp(3), are created in the target

     Historically install moved files by default.  The default was changed to
     copy in FreeBSD 4.4.

     chflags(1), chgrp(1), chmod(1), cp(1), mv(1), strip(1), mmap(2), chown(8)

     The install utility appeared in 4.2BSD.

     Temporary files may be left in the target directory if install exits

     File flags cannot be set by fchflags(2) over a NFS file system.  Other file
     systems do not have a concept of flags.  install will only warn when flags
     could not be set on a file system that does not support them.

     install with -v falsely says a file is copied when -C snaps hard links.

macOS 12.1                         May 7, 2001                        macOS 12.1