Example ARJ commands: 
 
  Add files minus directory structure:        ARJ a -e archive *.* 
  Add two files to archive:                   ARJ a archive name1 name2 
  Add files to archive with verification:     ARJ a -jt archive *.* 
  Add files with maximum compression:         ARJ a -jm archive *.* 
  Add thousands of files to an archive:       ARJ a -hm1 -r archive *.* 
  Add a chapter to an archive:                ARJ ac archive c:\dir\*.* -r 
  Comment archive header only:                ARJ c archive -zcmt.fil 
  Convert standard archive to chapter:        ARJ cc archive 
  Convert chapter archive to standard:        ARJ y archive -jb0 
  Delete the last chapter from an archive:    ARJ dc archive *.* 
  Strip archive comment only:                 ARJ c archive -zNUL 
  Extract files from archive:                 ARJ e archive 
  Extract maintaining directory structure:    ARJ x archive 
  Extract new and newer files without query:  ARJ e archive -u -y 
  Extract subdirectory from archive:          ARJ e archive subdir\*.* -p1 
  Extract files to directory:                 ARJ x archive destdir\ *.* 
  Extract files to directory:                 ARJ x archive *.* -htdestdir 
  Extract files to directory with space:      ARJ x archive "Program Files\\" 
--More--? 
--More--?
  Extract a Win95 archive to plain DOS:       ARJ x archive -hf2
  List files in archive:                      ARJ l archive
  Move files to archive:                      ARJ m archive *.doc
  Move files from archive:                    ARJ e -d archive *.doc
  Test integrity of files in archive:         ARJ t archive
  Test multiple ARJ archives:                 ARJ t *.ARJ -hr
  Add files to a multiple volume archive:     ARJ a -va a:archive *.*
  Create up to  999  archive volumes:           ARJ a -va a:archive. 001 
  Extract from a multiple volume archive:     ARJ x -v a:archive
  Create a multiple volume self-extractor:    ARJ a -va -je a:archive *.*
  Convert archive to self-extractor:          ARJ y -je1 archive

  Backup drive C to drive A:
                       ARJ a A:\backup C:\ -a1 -b2 -r -vvas -wC:\ -js -jt -hk
  Restore backup on drive A to drive C:       ARJ x A:\backup C:\ -vv -y

More detailed ARJ information:

Usage:  ARJ <command> [{/|-}<switch>[-|+|<option>]...] <archive_name>[.ARJ]
            [<base_directory_name>\] [<!list_name>|<path_name>|<wild_name>...]

        or
        ARJ @response_filename [ -& | -+ ]

<Commands>
 ac: Add Chapter to chapter archive      m: Move files to archive
 cc: Convert archive to Chapter archive  n: reName files in archive
 dc: Delete last Chapter from archive    o: Order files in archive
  a: Add files to archive                p: Print files to standard output
  b: execute Batch or dos command        q: recover damaged ARJ file
  c: Comment archive files               r: Remove paths from filenames
  d: Delete files from archive           s: Sample files to screen with pause
  e: Extract files from archive          t: Test integrity of archive
  f: Freshen files in archive            u: Update files to archive
  g: Garble files in archive             v: Verbosely list contents of archive
  i: check Integrity of ARJ.EXE          w: Where are text strings in archive
  j: Join archives to archive            x: eXtract files with full pathname
  k: remove obsolete bacKup files        y: copY archive with new options
  l: List contents of archive


<Main defaults>
  Save path information in archive
  Save long filenames
  Don't save drive and root in path information
--More--?
  Display comment ANSI sequences with built-in display handler
  Prompt before overwriting output files
  Use method  1  compression
  Use binary mode
  Use ! as list file symbol
  The "ac" command is an abbreviation for "u -u2 -jb"
  The "cc" command is an abbreviation for "y -jb"
  The "dc" command is an abbreviation for "d -jb"


<User prompt responses>
  Yes     - yes
  No      - no
  Quit    - abort out of ARJ
  Always  - always assume yes for current type of query
  Skip    - always assume no for current type of query
  Global  - always assume yes for all queries except diskette volume prompts
  Command - prompt for and execute one DOS command


<Switches>
  -: disables switch char                p: match using full Pathnames
  +: inhibits ARJ_SW usage              p1: match Pathname with subdirs
--More--?
     +var: set environment variable      q: Query on each file
  @: set  1  token per response file line  r: Recurse subdirectories
  !: set list char (!)                   s: set archive time-Stamp to newest
  &: set batch critical error handler   s1: save original time-Stamp
  #: select files by number             s2: set archive time-Stamp
  $: add/extract volume label           s3: save both original time-Stamps
     $A: add/extract label to drive A    t: set file Type (default  0 )
  a: allow any file Attribute               t0: set binary file type
 a1: any files and directories              t1: set C text file type
  b: Backup changed files                   t1f: force C text file type
 b1: Backup changed, reset archive bits     t1g: set C text with graphics
 b2: only reset archive bits             u: Update files (new + newer)
 b3: reset archive bit during restore   u1: Update files (new + OLDER)
 b4: do not restore bits, reset arc     u2: Update files (new + different)
 b5: do not restore any file attributes u3: Update files (new + CRC mismatch)
  c: skip time-stamp Check               v: enable multiple Volumes
  d: Delete added files                     v360:  build  362000  byte volumes
     asks permission before deleting        v50K:  build  50000  byte volumes
  e: Exclude paths from names               va:    auto-detect space available
 e1: Exclude base dir from names            vi:    inhibit diskette change test
  f: Freshen existing files                 vr50K: reserve  50000  bytes of
 f1: Freshen with OLDER files                      space on first volume
 f2: Freshen with DIFFERENT files           vs:    provide DOS command prompt
--More--?
 f3: Freshen with CRC mismatched files      vsCMD: execute CMD before each vol
  g: Garble with password                   vv:    beep between volumes
     gstew: garble with password stew       vw:    keep Whole files in volumes
     g?: prompt for password                vz:    provide command with no echo
  i: show no progress Indicator             v360,v720,v1200,v1440: abbrevs
 i1: show bar graph Indicator               Volume options may be in any order
 i2: show percentage and bar graph          except s and z which must be last
 i3: total progress percentage           w: assign Work directory
 i4: total progress bar graph               wTMP: use TMP as work directory
 i5: total percentage and bar graph      x: eXclude selected files
  k: Keep a .BAK of ARJ archive             x*.EXE: exclude *.EXE files
  l: create List_name file                  x!NAMES: exclude files in NAMES
     lNAMES.LST: create NAMES.LST           multiple exclusions are allowed
  m: with Method  0 ,  1 ,  2 ,  3 ,  4            y: assume Yes on all queries except
     m0: store (no compression)             diskette volume prompts
     m1: good compression (default)         Use this switch for batch mode
     m2: less memory and compression     z: supply archive comment file
     m3: FAST! less compression             zARC.CMT: use ARC.CMT for comments
     m4: FASTEST! least compression         zNUL: use to strip comments
  n: only New files (not exist)
  o: On or after YYMMDDHHMMSS
     o:       on today
     o901225: on/after  12 / 25 / 90 
--More--?
 ob: Before YYMMDDHHMMSS
     ob:       before today
     ob901225: before  12 / 25 / 90 
 od: no older than N Days
     od5: five or less days old


<Shifted switches>
 h#: append date string to name        hg: specify garble module filename
h# 1 : append time string to name            hgGARBLE.COM: set GARBLE.COM as
h# 2 : append DHHMMSS to name                name of garble module
 ha: ignore readonly Attribute         hi: detailed display in Index files
 hb: select by file attribute/type     hk: build data protection file
     a - archive bit set               hl: return error for Listfile error
     b - archive bit clear             hm: increase file list capacity
     r - readonly                     hm!: redirect -hm temp file
     s - system                            hm! : move temp file to XMS mem
     h - hidden                            hm!e:\ : move temp file to e:\
     d - directory                     hn: specify non-existent filespec
     n - normal file, not d,h,r,s,c,l      hn####: set #### as filespec
     c - chapter label                 ho: Only extract files with matches
     l - volume label                 ho1: Only extract files without matches
     f - abbrev for n,d,r,s,h          hq: ignore open access error on adds
--More--?
     hb: select all types             hq1: ignore open not found error on adds
     hbsh: select hidden, system only hq2: ignore access and not found on adds
     hbd: select dirs only             hr: try to ignore archive errors
 hc: execute DOS Command at ARJ start  hs: disable file Sharing
     hcCLS: execute CLS                ht: set Target directory
 he: skip test of security Envelope        htD:\DESTDIR
he1: set error on security Envelope    hu: allow Update of volume archives
 hf: set short filenames only          hv: check for ARJ version
hf1: set longnames in file comment     hw: scroll save search filename display
     or extract with W95LNAME.nnn     hw1: display only filenames with matches
hf2: use long filenames in DOS         hx: set default archive extensions
hf3: set longnames in file comment         hx.arj.sdn
     using shortname wildcards


 j#: store only CRC and not the file    jq: set string parameter
j# 1 : store only date, size, attributes      jqstring: set parameter to string
 ja: set P command to display ANSI      jr: Recover broken archive files
ja1: inhibit the display of comments   jr1: Recover badly broken archive files
 jb: set chapter backup processing      js: Store archives by suffix
jb0: clear chapter archive status           default is arj, arc, lzh, pak, rar,
jb*: select all chapter backup files        zip, zoo, j, and uc2.
 jc: exit after Count of files              js.zoo: store only .zoo files
--More--?
     jc5: exit after  5  files            jt: Test temporary archive by CRC
     jc nam1 nam2: exit after  2  files  jt1: Test CRC and file contents
 jd: ensure free Disk space            jt2: Test only added file contents
     e -jd50K: skip file if< 50000  free  ju: translate UNIX style paths
     l -jd1000: set error if< 1000  free  jv: set Verbose display
 je: create self-extracting archive    jv1: set special verbose list mode
je1: create SFXJR archive               jw: set extract output filename
 jf: store/use Full specified path          jwNEW.FIL: output to NEW.FIL
jf1: store/use path minus drive         jx: start at eXtended position
 jg: [OBSOLETE]                             jx10000: start at position  10000 
jg1: [OBSOLETE]                         jy: suppress queries assuming Yes
 jh: set Huffman buffer size              a - skip append query
     jh65535: set to  65535  bytes (max)    c - skip create directory query
     jh2048: set to  2048  bytes (min)      d - skip delete files query
 ji: create Index file                    k - skip disk space available query
     jiINDEX.FIL: create INDEX.FIL        n - skip new filename prompt
 jk: Keep temp archive on error           o - skip overwrite file query
 jl: display only filespecs               r - erase all type-ahead before query
 jm: set Maximum compression mode         s - skip scanned enough text query
jm1: set faster Maximum compression       v - skip proceed to next volume query
 jn: restart volumes at fileName          y - accept single character Y/N/A/Q
     jnBIN\X.COM: restart at BIN\X.COM    jycny: skip create, new name queries
     jn: get restart information from            in single character input mode
--More--?
     previously written index file      jz: supply file for file comment
 jo: query when updating archive file       jzFIL.CMT: use FIL.CMT for comments
 jo: extract to unique Output names         jzNUL: use to strip file comments
 jp: Pause after each screenful
     jp50: pause, set page size to  50 


Environment variable setting:
  set arj_sw=-jyry -jv -i1
  set arj_sw=c:\arj.cfg


ARJ DOS errorlevels:

   0  ->   success
   1  ->   warning (specified file to add to archive not found,
                  specified file to list, extract, etc., not found,
                  or answering negatively to "OK to proceed to next volume..."
                  prompt)
   2  ->   fatal error
   3  ->   CRC error (header or file CRC error or bad password)
   4  ->   ARJ-SECURITY error or attempt to update an ARJ-SECURED archive
   5  ->   disk full or write error
--More--?
   6  ->   cannot open archive or file
   7  ->   simple user error (bad parameters)
   8  ->   not enough memory
   9  ->   not an ARJ archive
  10  ->   XMS memory error (read or write)
  11  ->   user control break
  12  ->   too many chapters (over  250 )

  The batch statement IF ERRORLEVEL  0  ...          means
  if the errorlevel is EQUAL TO or GREATER THAN  0 .

If the first two characters of an ARJ comment are "))" in a self-extractor,
then the self-extractor will accept the appended line as its command line.

)) -o
will force the self-extractor to overwrite existing files.


This ARJ help information is not intended as a replacement for the ARJ user
documentation.  See the files ARJ.DOC, INTRO.DOC, ERRORS.DOC, ... for detailed
information about using ARJ.


--More--?