1  SUBSTITUTE
   Replaces occurrences of one text string with another.

   Format

     SUBSTITUTE   search-string

                  replace-string

2  Qualifiers

/ALL

   Specifies that all occurrences of the search string are to be
   replaced with the replace string. Specifying the /ALL qualifier
   causes LSE to perform all the indicated substitutions without
   prompting you for further instructions.

/CASE_MATCHING

      /CASE_MATCHING
      /NOCASE_MATCHING (D)

   Specifies whether LSE uses the case of words in the search
   string to determine the case for the replacement string. The
   four conditions are: uppercase, lowercase, capitalized, or
   undetermined. For example, if a word in the search string is
   all uppercase, all the letters of the corresponding word in the
   replacement string become uppercase. If a word in the search
   string does not match the criteria for uppercase, lowercase,
   or capitalization, or there are no alphabetic characters in
   the search string word, its case is undetermined and LSE does
   not modify the case of the corresponding word in the replacement
   string.

   If the replacement string contains more than one word, LSE
   respectively matches the case of words in the replacement string
   with the case of the corresponding words in the search string.
   If the search string contains fewer words than the replacement
   string, LSE matches the case of the additional words of the
   replacement string with the case of the last word in the search
   string.

   Specifying the /NOCASE_MATCHING qualifier causes LSE not to modify
   the case of the replacement string to match that of the search
   string.

/CONFIRM

      /CONFIRM (D)

   Instructs LSE to prompt you for a confirmation at each occurrence
   before performing a substitution. If you specify the /CONFIRM
   qualifier, LSE highlights each occurrence of the search string
   located by the search and prompts you for an action.

   o  YES instructs LSE to replace this occurrence.

   o  NO instructs LSE not to replace this occurrence but to proceed
      with the command.

   o  QUIT ends the command without replacing this occurrence and
      stops the SUBSTITUTE operation.

   o  ALL replaces this occurrence and all remaining occurrences
      without further prompting.

/DIALOG

      /DIALOG
      /NODIALOG (D)

   Instructs LSE to use a dialog box to prompt you for parameters
   and qualifier values. If you specify this qualifier, the command
   parameters are optional. If you supply command parameters and
   qualifiers with the /DIALOG qualifier, LSE uses those parameters
   and qualifiers to set the initial state of the dialog box.

   The Substitute dialog box has the same fields as the Search dialog
   box, plus a button for case-matching replacement and a text field
   for the replacement string.

/PATTERN

      /PATTERN
      /NOPATTERN (D)

   Enables or disables special interpretation of wildcard patterns
   in a search string. Use the SET SEARCH command to specify the
   style of wildcard patterns (VMS, ULTRIX or TPU).

   For details of the pattern styles use the command HELP FEATURES 
   PATTERNS.

   When you specify the /NOPATTERN qualifier (or when it is the
   default), special interpretation of wildcard patterns in the
   search string is disabled.

/SINGLE

   Specifies that only one occurrence of the search string is to
   be replaced with the replacement string. Specifying the /SINGLE
   qualifier causes LSE to perform a single substitution without
   prompting you for an action.

2  Parameters

search-string
   Specifies the string for which to search.

   If the TPU pattern style is being used the search-string is a
   TPU expression which must evaluate to a TPU pattern (for 
   example: "'abc' | 'def'").

replace-string
   Specifies the string to substitute.

   If the TPU pattern style is being used the replace-string is a
   TPU expression which must evaluate to a TPU string (for 
   example: "'ghi'").