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 * /S Displays files in specified directory and all subdirectories.
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 * /S Displays files in specified directory and all subdirectories.
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 * /B Uses bare format (no heading information or summary)
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 * /B Uses bare format (no heading information or summary)
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 * /L Uses lowercases
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 * /L Uses lowercases
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 */
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 */
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#define cmd_dir_attr_ro   1
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#define cmd_dir_attr_hid  2
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#define cmd_dir_attr_sys  4
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#define cmd_dir_attr_vol  8
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#define cmd_dir_attr_dir 16
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#define cmd_dir_attr_arc 32
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static int cmd_dir(struct cmd_funcparam *p) {
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static int cmd_dir(struct cmd_funcparam *p) {
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  const char *filespecptr = "*.*";
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  const char *filespecptr = "*.*";
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  struct DTA *dta = (void *)0x80; /* set DTA to its default location at 80h in PSP */
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  struct DTA *dta = (void *)0x80; /* set DTA to its default location at 80h in PSP */
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  if (findfirst(dta, filespecptr, cmd_dir_attr_ro | cmd_dir_attr_hid | cmd_dir_attr_sys | cmd_dir_attr_dir | cmd_dir_attr_arc) != 0) return(-1);
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  if (findfirst(dta, filespecptr, DOS_ATTR_RO | DOS_ATTR_HID | DOS_ATTR_SYS | DOS_ATTR_DIR | DOS_ATTR_ARC) != 0) return(-1);
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  outputnl(dta->fname);
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  outputnl(dta->fname);
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  while (findnext(dta) == 0) outputnl(dta->fname);
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  while (findnext(dta) == 0) outputnl(dta->fname);
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