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infozip2.2源码

	      than  the	 current  one.)	 The backslash avoids the
	      shell  filename  substitution,  so  that	the  name
	      matching	is performed by zip at all directory lev-
	      els.

	      Also possible:

		     zip -r foo	 . [e-mail]

	      which will only include the files	 in  the  current
	      directory	 and  its  subdirectories  that match the
	      patterns in the file include.lst.

       -I     Don't scan through  Image	 files.	 This  option  is
	      available	 on  Acorn  RISC  OS only; when used, zip
	      will not consider Image files (eg.  DOS  partitions
	      or Spark archives when SparkFS is loaded) as direc-
	      tories but will store them as single files.

	      For example, if you have SparkFS loaded, zipping	a
	      Spark archive will result in a zipfile containing a
	      directory (and its content)  while  using	 the  'I'
	      option  will result in a zipfile containing a Spark
	      archive. Obviously this second case  will	 also  be
	      obtained	(without the 'I' option) if SparkFS isn't
	      loaded.

       -j     Store just the name  of  a  saved	 file  (junk  the
	      path),   and  do	not  store  directory  names.  By
	      default, zip will store the full path (relative  to
	      the current path).

       -J     Strip any prepended data (e.g. a SFX stub) from the
	      archive.

       -k     Attempt to convert the names and paths  to  conform
	      to  MSDOS, store only the MSDOS attribute (just the
	      user write attribute from UNIX), and mark the entry
	      as  made	under MSDOS (even though it was not); for
	      compatibility with PKUNZIP under MSDOS which cannot
	      handle certain names such as those with two dots.

       -l     Translate	 the  Unix  end-of-line character LF into
	      the MSDOS convention CR LF. This option should  not
	      be  used	on binary files.  This option can be used
	      on Unix if the zip file  is  intended  for  PKUNZIP
	      under  MSDOS. If the input files already contain CR
	      LF, this option adds an extra CR. This ensure  that
	      unzip -a on Unix will get back an exact copy of the
	      original file, to undo the effect of zip -l.

       -ll    Translate the MSDOS end-of-line CR LF into Unix LF.
	      This  option  should  not	 be used on binary files.

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ZIP(1L)							  ZIP(1L)

	      This option can be used on MSDOS if the zip file is
	      intended for unzip under Unix.

       -L     Display the zip license.

       -m     Move  the	 specified  files  into	 the zip archive;
	      actually, this deletes the target directories/files
	      after making the specified zip archive. If a direc-
	      tory becomes empty after removal of the files,  the
	      directory	 is  also  removed. No deletions are done
	      until zip has created the	 archive  without  error.
	      This  is	useful	for conserving disk space, but is
	      potentially dangerous so it is recommended  to  use
	      it  in  combination  with	 -T  to	 test the archive
	      before removing all input files.

       -n suffixes
	      Do not attempt to compress  files	 named	with  the
	      given  suffixes.	 Such files are simply stored (0%
	      compression) in the output zip file,  so	that  zip
	      doesn't  waste  its  time	 trying to compress them.
	      The suffixes are	separated  by  either  colons  or
	      semicolons.  For example:

		     zip -rn .Z:.zip:.tiff:.gif:.snd  foo foo

	      will  copy  everything  from  foo into foo.zip, but
	      will store any files that end in .Z,  .zip,  .tiff,
	      .gif,  or	 .snd  without	trying	to  compress them
	      (image and sound files often have	 their	own  spe-
	      cialized	compression  methods).	 By  default, zip
	      does not compress files with extensions in the list
	      .Z:.zip:.zoo:.arc:.lzh:.arj.  Such files are stored
	      directly in the output  archive.	 The  environment
	      variable	ZIPOPT	can be used to change the default
	      options. For example under Unix with csh:

		     setenv ZIPOPT "-n .gif:.zip"

	      To attempt compression on all files, use:

		     zip -n : foo

	      The maximum compression  option  -9  also	 attempts
	      compression on all files regardless of extension.

	      On  Acorn RISC OS systems the suffixes are actually
	      filetypes (3 hex digit  format).	By  default,  zip
	      does  not compress files with filetypes in the list
	      DDC:D96:68E (i.e. Archives, CFS files  and  PackDir
	      files).

       -N     Save  Amiga filenotes as zipfile comments. They can
	      be restored by using the -N option of  unzip.  This

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ZIP(1L)							  ZIP(1L)

	      option  is  available  on	 the Amiga only. If -c is
	      used also, you are prompted for comments	only  for
	      those files that do not have filenotes.

       -o     Set  the "last modified" time of the zip archive to
	      the latest  (oldest)  "last  modified"  time  found
	      among  the entries in the zip archive.  This can be
	      used without any other operations, if desired.  For
	      example:

	      zip -o foo

	      will  change  the	 last modified time of foo.zip to
	      the latest time of the entries in foo.zip.

       -P password
	      use password to encrypt zipfile entries  (if  any).
	      THIS  IS	INSECURE!  Many multi-user operating sys-
	      tems provide ways for any user to see  the  current
	      command line of any other user; even on stand-alone
	      systems there is always  the  threat  of	over-the-
	      shoulder	peeking.   Storing the plaintext password
	      as part of a command line in an automated script is
	      even  worse.   Whenever possible, use the non-echo-
	      ing, interactive prompt to enter	passwords.   (And
	      where  security  is  truly  important,  use  strong
	      encryption such as Pretty Good Privacy  instead  of
	      the relatively weak encryption provided by standard
	      zipfile utilities.)

       -q     Quiet mode; eliminate  informational  messages  and
	      comment  prompts.	  (Useful,  for example, in shell
	      scripts and background tasks).

       -r     Travel the  directory  structure	recursively;  for
	      example:

		     zip -r foo foo

	      In  this case, all the files and directories in foo
	      are saved in a zip archive named foo.zip, including
	      files  with  names  starting  with  ".",	since the
	      recursion does not use the shell's  file-name  sub-
	      stitution mechanism.  If you wish to include only a
	      specific subset of the files in directory	 foo  and
	      its  subdirectories,  use	 the -i option to specify
	      the pattern of files to be  included.   You  should
	      not  use	-r with the name ".*", since that matches
	      ".."  which will	attempt	 to  zip  up  the  parent
	      directory (probably not what was intended).

       -R     Travel the directory structure recursively starting
	      at the current directory; for example:

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ZIP(1L)							  ZIP(1L)

		     zip -R foo *.c

	      In this case, all the files  matching  *.c  in  the
	      tree  starting  at the current directory are stored
	      into a zip archive named foo.zip.	 Note  for  PKZIP
	      users: the equivalent command is

		     pkzip -rP foo *.c

       -S     Include  system  and  hidden  files. This option is
	      effective on some systems only; it  is  ignored  on
	      Unix.

       -t mmddyyyy
	      Do not operate on files modified prior to the spec-
	      ified date, where mm is the month (0-12), dd is the
	      day of the month (1-31), and yyyy is the year.  For
	      example:

		     zip -rt 12071991 infamy foo

	      will add all the files in foo and	 its  subdirecto-
	      ries that were last modified on or after 7 December
	      1991, to the zip archive infamy.zip.

       -tt mmddyyyy
	      Do not operate on files modified after  or  at  the
	      specified date, where mm is the month (0-12), dd is
	      the day of the month (1-31), and yyyy is the  year.
	      For example:

		     zip -rtt 11301995 infamy foo

	      will  add	 all the files in foo and its subdirecto-
	      ries that were last modified before the 30 November
	      1995, to the zip archive infamy.zip.

       -T     Test  the	 integrity  of	the  new zip file. If the
	      check fails, the old  zip	 file  is  unchanged  and
	      (with the -m option) no input files are removed.

       -u     Replace  (update)	 an  existing  entry  in  the zip
	      archive only if it has been modified more	 recently
	      than  the	 version already in the zip archive.  For
	      example:

		     zip -u stuff *

	      will add any new files in	 the  current  directory,
	      and update any files which have been modified since
	      the zip archive stuff.zip was last created/modified
	      (note  that zip will not try to pack stuff.zip into
	      itself when you do this).

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ZIP(1L)							  ZIP(1L)

	      Note that the -u option with no arguments acts like
	      the -f (freshen) option.

       -v     Verbose mode or print diagnostic version info.

	      Normally,	 when  applied	to  real operations, this
	      option enables the display of a progress	indicator
	      during  compression and requests verbose diagnostic
	      info about zipfile structure oddities.

	      When -v is the only command line argument, and std-
	      out  is  not  redirected	to  a  file, a diagnostic
	      screen is printed. In addition to the  help  screen
	      header  with  program  name,  version,  and release
	      date, some pointers to the Info-ZIP home	and  dis-
	      tribution	 sites are given. Then, it shows informa-
	      tion about the target  environment  (compiler  type
	      and  version,  OS version, compilation date and the
	      enabled optional features used to	 create	 the  zip
	      executable.

       -V     Save  VMS file attributes. This option is available
	      on VMS only; zip archives created with this  option
	      will generally not be usable on other systems.

       -w     Append the version number of the files to the name,
	      including multiple versions of files.   (VMS  only;
	      default:	use  only  the	most  recent version of a
	      specified file).

       -x files
	      Explicitly exclude the specified files, as in:

		     zip -r foo foo -x \*.o

	      which will include the contents of foo  in  foo.zip
	      while  excluding all the files that end in .o.  The
	      backslash avoids the shell  filename  substitution,
	      so  that	the  name matching is performed by zip at
	      all directory levels.

	      Also possible:

		     zip -r foo foo [e-mail]

	      which will include the contents of foo  in  foo.zip
	      while  excluding	all the files that match the pat-
	      terns in the file exclude.lst.

       -X     Do  not  save  extra  file   attributes	(Extended
	      Attributes  on  OS/2,  uid/gid  and  file	 times on
	      Unix).

       -y     Store symbolic links as such in  the  zip	 archive,

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ZIP(1L)							  ZIP(1L)

	      instead	of   compressing  and  storing	the  file
	      referred to by the link (UNIX only).

       -z     Prompt for a multi-line comment for the entire  zip
	      archive.	The comment is ended by a line containing
	      just a period, or an end of file condition  (^D  on