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1.1 ! root 1: USTAR COHERENT (USENIX Association) USTAR ! 2: NAME ! 3: ustar - process tape archives ! 4: SYNOPSIS ! 5: ustar -c[bfvw] device block filename... ! 6: ustar -r[bvw] device block [filename...] ! 7: ustar -t[fv] device ! 8: ustar -x[flmovw] device [filename...] ! 9: DESCRIPTION ! 10: Ustar reads and writes archive files which conform to the ! 11: Archive/Interchange File Format specified in IEEE Std. ! 12: 1003.1-1988. ! 13: Options ! 14: The following options are available: ! 15: -c Creates a new archive; writing begins at the ! 16: beginning of the archive, instead of after the ! 17: last file. ! 18: -r Writes names files to the end of the archive. ! 19: -t Lists the names of all of the files in the ! 20: archive. ! 21: -x Extracts named files from the archive. If a named ! 22: file matches a directory whose contents had been ! 23: written onto the archive, that directory is ! 24: recursively extracted. If a named file in the ! 25: archive does not exist on the system, the file is ! 26: create with the same mode as the one in the ! 27: archive, except that the set-user-id and get- ! 28: group-id modes are not set unless the user has ! 29: appropriate privileges. ! 30: If the files exist, their modes are not changed except as ! 31: described above. The owner, group and modification time are ! 32: restored if possible. If no filename argument is given, the ! 33: entire contents of the archive is extracted. Note that if ! 34: several files with the same name are in the archive, the ! 35: last one will overwrite all earlier ones. ! 36: -b Causes ustar to use the next argument on the command ! 37: line as the blocking factor for tape records. The ! 38: default is 1; the maximum is 20. This option ! 39: Page 1 (printed 5/24/90) ! 40: USTAR COHERENT (USENIX Association) USTAR ! 41: should only be used with raw magnetic tape ! 42: archives. Normally, the block size is determined ! 43: automatically when reading tapes. ! 44: -f Causes ustar to use the next argument on the command ! 45: line as the name of the archive instead of the ! 46: default, which is usually a tape drive. If - is ! 47: specified as a filename ustar writes to the standard ! 48: output or reads from the standard input, whichever ! 49: is appropriate for the options given. Thus, ustar ! 50: can be used as the head or tail of a pipeline. ! 51: -l Tells ustar to report if it cannot resolve all of ! 52: the links to the files being archived. If -l is ! 53: not specified, no error messages are written to ! 54: the standard output. This modifier is only valid ! 55: with the -c, -r and -u options. ! 56: -m Tells ustar not to restore the modification times. ! 57: The modification time of the file will be the time ! 58: of extraction. This modifier is invalid with th ! 59: -t option. ! 60: -o Causes extracted files to take on the user and ! 61: group identifier of the user running the program ! 62: rather than those on the archive. This modifier ! 63: is only valid with the -x option. ! 64: -v Causes ustar to operate verbosely. Usually, ustar ! 65: does its work silently, but the v modifier causes ! 66: it to print the name of each file it processes, ! 67: preceded by the option letter. With the -t ! 68: option, v gives more information about the archive ! 69: entries than just the name. ! 70: -w Causes ustar to print the action to be taken, ! 71: followed by the name of the file, and then wait ! 72: for the user's confirmation. If a word beginning ! 73: with y is given, the action is performed. Any ! 74: other input means "no". This modifier is invalid ! 75: with the -t option. ! 76: ! 77: To create archive on high density floppy, enter (disk has been ! 78: formated before): ! 79: ustar cvf /dev/fha0 files_names ! 80: To display a listing of the archive: ! 81: ustar tvf /dev/fha0 ! 82: For extract the files from this archive you can print: ! 83: ustar xvf /dev/fha0 ! 84: SEE ALSO ! 85: cpio, dd, find, pax ! 86: ! 87: NOTES ! 88: Name ustar was selected because new tar uses ustar format and ! 89: by distinguish between original COHERENT tar and new one. ! 90: ! 91: Because COHERENT has memory restriction ustar cannot create ! 92: archive on big directories tree (about 2 Mb and more). ! 93: ! 94: ustar cannot append on magnetic tape. ! 95: ! 96: ustar doesn't support option -u . ! 97: ! 98: COPYRIGHT ! 99: Copyright (c) 1989 Mark H. Colburn. ! 100: COHERENT pax/ustar/cpio are based on original code for pax ! 101: which is sponsored by The USENIX Association. ! 102: ! 103: Page 3 (printed 5/24/90)
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