man cp

[oh@localhost 桌面]$ man cp | cat
CP(1)                            User Commands                           CP(1)

NAME
       cp - copy files and directories

SYNOPSIS
       cp [OPTION]... [-T] SOURCE DEST
       cp [OPTION]... SOURCE... DIRECTORY
       cp [OPTION]... -t DIRECTORY SOURCE...

DESCRIPTION
       Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.

       Mandatory  arguments  to  long  options are mandatory for short options
       too.

       -a, --archive
              same as -dR --preserve=all

       --backup[=CONTROL]
              make a backup of each existing destination file

       -b     like --backup but does not accept an argument

       --copy-contents
              copy contents of special files when recursive

       -d     same as --no-dereference --preserve=links

       -f, --force
              if an existing destination file cannot be opened, remove it  and
              try again (redundant if the -n option is used)

       -i, --interactive
              prompt before overwrite (overrides a previous -n option)

       -H     follow command-line symbolic links in SOURCE

       -l, --link
              link files instead of copying

       -L, --dereference
              always follow symbolic links in SOURCE

       -n, --no-clobber
              do  not  overwrite  an  existing  file  (overrides a previous -i
              option)

       -P, --no-dereference
              never follow symbolic links in SOURCE

       -p     same as --preserve=mode,ownership,timestamps

       --preserve[=ATTR_LIST]
              preserve  the   specified   attributes   (default:   mode,owner-
              ship,timestamps),  if  possible  additional attributes: context,
              links, xattr, all

       -c     same as --preserve=context

       --no-preserve=ATTR_LIST
              don’t preserve the specified attributes

       --parents
              use full source file name under DIRECTORY

       -R, -r, --recursive
              copy directories recursively

       --reflink[=WHEN]
              control clone/CoW copies. See below.

       --remove-destination
              remove each existing destination file before attempting to  open
              it (contrast with --force)

       --sparse=WHEN
              control creation of sparse files. See below.

       --strip-trailing-slashes
              remove any trailing slashes from each SOURCE argument

       -s, --symbolic-link
              make symbolic links instead of copying

       -S, --suffix=SUFFIX
              override the usual backup suffix

       -t, --target-directory=DIRECTORY
              copy all SOURCE arguments into DIRECTORY

       -T, --no-target-directory
              treat DEST as a normal file

       -u, --update
              copy  only  when  the  SOURCE file is newer than the destination
              file or when the destination file is missing

       -v, --verbose
              explain what is being done

       -x, --one-file-system
              stay on this file system

       -Z, --context=CONTEXT
              set security context of copy to CONTEXT

       --help display this help and exit

       --version
              output version information and exit

       By default, sparse SOURCE files are detected by a crude  heuristic  and
       the corresponding DEST file is made sparse as well.  That is the behav-
       ior selected by --sparse=auto.  Specify  --sparse=always  to  create  a
       sparse  DEST  file  whenever  the  SOURCE  file  contains a long enough
       sequence of zero bytes.  Use  --sparse=never  to  inhibit  creation  of
       sparse files.

       When --reflink[=always] is specified, perform a lightweight copy, where
       the data blocks are copied only when modified.  If this is not possible
       the copy fails, or if --reflink=auto is specified, fall back to a stan-
       dard copy.

       The  backup  suffix  is  ‘~’,  unless  set  with   --suffix   or   SIM-
       PLE_BACKUP_SUFFIX.   The version control method may be selected via the
       --backup option or through the  VERSION_CONTROL  environment  variable.
       Here are the values:

       none, off
              never make backups (even if --backup is given)

       numbered, t
              make numbered backups

       existing, nil
              numbered if numbered backups exist, simple otherwise

       simple, never
              always make simple backups

       As  a  special  case,  cp  makes  a backup of SOURCE when the force and
       backup options are given and SOURCE and DEST are the same name  for  an
       existing, regular file.

AUTHOR
       Written by Torbjorn Granlund, David MacKenzie, and Jim Meyering.

REPORTING BUGS
       Report cp bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report cp translation bugs to <http://translationproject.org/team/>

COPYRIGHT
       Copyright  ©  2010  Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       The  full  documentation  for cp is maintained as a Texinfo manual.  If
       the info and cp programs are properly installed at your site, the  com-
       mand

              info coreutils 'cp invocation'

       should give you access to the complete manual.

GNU coreutils 8.4                  May 2016                              CP(1)
[oh@localhost 桌面]$ 

mv:

[oh@localhost 桌面]$ man mv |cat
MV(1)                            User Commands                           MV(1)

NAME
       mv - move (rename) files

SYNOPSIS
       mv [OPTION]... [-T] SOURCE DEST
       mv [OPTION]... SOURCE... DIRECTORY
       mv [OPTION]... -t DIRECTORY SOURCE...

DESCRIPTION
       Rename SOURCE to DEST, or move SOURCE(s) to DIRECTORY.

       Mandatory  arguments  to  long  options are mandatory for short options
       too.

       --backup[=CONTROL]
              make a backup of each existing destination file

       -b     like --backup but does not accept an argument

       -f, --force
              do not prompt before overwriting

       -i, --interactive
              prompt before overwrite

       -n, --no-clobber
              do not overwrite an existing file

       If you specify more than one of -i, -f, -n, only the  final  one  takes
       effect.

       --strip-trailing-slashes
              remove any trailing slashes from each SOURCE argument

       -S, --suffix=SUFFIX
              override the usual backup suffix

       -t, --target-directory=DIRECTORY
              move all SOURCE arguments into DIRECTORY

       -T, --no-target-directory
              treat DEST as a normal file

       -u, --update
              move  only  when  the  SOURCE file is newer than the destination
              file or when the destination file is missing

       -v, --verbose
              explain what is being done

       --help display this help and exit

       --version
              output version information and exit

       The  backup  suffix  is  ‘~’,  unless  set  with   --suffix   or   SIM-
       PLE_BACKUP_SUFFIX.   The version control method may be selected via the
       --backup option or through the  VERSION_CONTROL  environment  variable.
       Here are the values:

       none, off
              never make backups (even if --backup is given)

       numbered, t
              make numbered backups

       existing, nil
              numbered if numbered backups exist, simple otherwise

       simple, never
              always make simple backups

AUTHOR
       Written by Mike Parker, David MacKenzie, and Jim Meyering.

REPORTING BUGS
       Report mv bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report mv translation bugs to <http://translationproject.org/team/>

COPYRIGHT
       Copyright  ©  2010  Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       rename(2)

       The  full  documentation  for mv is maintained as a Texinfo manual.  If
       the info and mv programs are properly installed at your site, the  com-
       mand

              info coreutils 'mv invocation'

       should give you access to the complete manual.

GNU coreutils 8.4                  May 2016                              MV(1)
[oh@localhost 桌面]$ 
 

rm:

[oh@localhost 桌面]$ man rm | cat
RM(1)                            User Commands                           RM(1)

NAME
       rm - remove files or directories

SYNOPSIS
       rm [OPTION]... FILE...

DESCRIPTION
       This  manual  page  documents  the  GNU version of rm.  rm removes each
       specified file.  By default, it does not remove directories.

       If the -I or --interactive=once option is given,  and  there  are  more
       than  three  files  or  the  -r,  -R, or --recursive are given, then rm
       prompts the user for whether to proceed with the entire operation.   If
       the response is not affirmative, the entire command is aborted.

       Otherwise,  if  a file is unwritable, standard input is a terminal, and
       the -f or --force  option  is  not  given,  or  the  -i  or  --interac-
       tive=always  option is given, rm prompts the user for whether to remove
       the file.  If the response is not affirmative, the file is skipped.

OPTIONS
       Remove (unlink) the FILE(s).

       -f, --force
              ignore nonexistent files, never prompt

       -i     prompt before every removal

       -I     prompt once before removing  more  than  three  files,  or  when
              removing  recursively.  Less intrusive than -i, while still giv-
              ing protection against most mistakes

       --interactive[=WHEN]
              prompt according to WHEN: never,  once  (-I),  or  always  (-i).
              Without WHEN, prompt always

       --one-file-system
              when  removing  a hierarchy recursively, skip any directory that
              is on a file system different from  that  of  the  corresponding
              command line argument

       --no-preserve-root
              do not treat ‘/’ specially

       --preserve-root
              do not remove ‘/’ (default)

       -r, -R, --recursive
              remove directories and their contents recursively

       -v, --verbose
              explain what is being done

       --help display this help and exit

       --version
              output version information and exit

       By default, rm does not remove directories.  Use the --recursive (-r or
       -R) option to remove each listed directory, too, along with all of  its
       contents.

       To  remove a file whose name starts with a ‘-’, for example ‘-foo’, use
       one of these commands:

              rm -- -foo

              rm ./-foo

       Note that if you use rm to remove a file, it  is  usually  possible  to
       recover the contents of that file.  If you want more assurance that the
       contents are truly unrecoverable, consider using shred.

AUTHOR
       Written by Paul Rubin, David MacKenzie, Richard M.  Stallman,  and  Jim
       Meyering.

REPORTING BUGS
       Report rm bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report rm translation bugs to <http://translationproject.org/team/>

COPYRIGHT
       Copyright  ©  2010  Free Software Foundation, Inc.  License GPLv3+: GNU
       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       unlink(1), unlink(2), chattr(1), shred(1)

       The  full  documentation  for rm is maintained as a Texinfo manual.  If
       the info and rm programs are properly installed at your site, the  com-
       mand

              info coreutils 'rm invocation'

       should give you access to the complete manual.

GNU coreutils 8.4                  May 2016                              RM(1) [oh@localhost 桌面]$