Displays up to 254 previously entered commands on the screen for subsequent execution.

Format

RECALL [command-specifier]

Parameter

command-specifier

Specifies the number or the first several characters of the command you want to recall. You cannot use any of the qualifiers in conjunction with a command-specifier.

The specified characters should be unique. If they are not unique, the RECALL command displays the most recently entered command line that matches those characters. For example, suppose you enter a SHOW STATUS command and later enter a SHOW TIME command. If you then type RECALL S, the SHOW TIME command is recalled. You must type RECALL SHOW S to recall the SHOW STATUS command. The number of the command can be from 1 to 254 (where 1 is the last command entered).

The RECALL command itself is never assigned a number. If no command specifier is entered, the RECALL command recalls the most recently entered command. You can use the /ALL qualifier to have the system display all the commands in the recall buffer, along with their command numbers, to verify the number of the command you want to recall.

Description

When you enter commands to the system, they are stored in a recall buffer for later use with the RECALL command. Input to the INQUIRE command in command procedures is also placed in the recall buffer. The RECALL command itself is never stored in the recall buffer. You can use continuation characters with the commands to be recalled, but only 255 characters can be read at a time.

The recall buffer can hold up to 254 commands. The size of the recall buffer is 4Kb, which will store approximately 80 commands at 48 characters each.

If the length of stored commands makes it necessary, one or more of the oldest commands will be removed from the recall buffer to make room for the most recent command.

When you use the RECALL command, the system displays the command but does not process it. If you want it processed as it appears, press Return. You can use the command line editing facility to make minor changes in the command line and then press Return to process the revised version of the command.

Qualifiers

/ALL [command-specifier]

Displays all the commands (and their numbers) available for recall. Do not use the /ALL qualifier with the other RECALL qualifiers.

To display multiple occurrences of a specific command in the recall buffer, specify the command after the /ALL qualifier.

Note The RECALL command is never stored in the recall buffer.

/ERASE

Erases the contents of the recall buffer.

/INPUT=filespec

Causes each line of the input file to be added to the recall buffer. If a file type is not specified with the file name, .LIS is the default. The file specification cannot include the asterisk (*) and the percent sign (%) wildcard characters.

If the /ERASE qualifier is also specified, the contents of the recall buffer are erased before the contents of the specified file are read into the recall buffer.

The /INPUT qualifier is incompatible with the /ALL and /PAGE qualifiers.

/OUTPUT=filespec

Specifies the name of the output file where the contents of the recall buffer are written. If you do not specify a file type, the default is .LIS. The file specification cannot include the asterisk (*) and the percent sign (%) wildcard characters.

If the /ERASE qualifier is also specified, the contents of the recall buffer are erased after the contents of the recall buffer are written to the specified file.

The /OUTPUT qualifier is incompatible with the /ALL and /PAGE qualifiers.

/PAGE

/NOPAGE (default)

Displays all the commands (and their numbers) available for recall one screen at a time. The /NOPAGE qualifier produces the same output as the /ALL qualifier. You can cancel the output display by pressing Ctrl/Z.

The /PAGE qualifier is incompatible with the /INPUT and /OUTPUT qualifiers.

/SEARCH string

Searches the recall buffer and displays all the commands (and their numbers) that contain the specified search string.

Examples

$ RECALL T
      

The RECALL command in this example recalls the last command entered that begins with the letter T.

$ SHOW DEFAULT
  DISK3:[SMITH]
$ DIRECTORY SEPT*
  %DIRECT-W-NOFILES, no files found
$ SET DEFAULT [SMITH.LETTERS]
$ RECALL/ALL
  1 SET DEFAULT [SMITH.LETTERS]
  2 DIRECTORY SEPT*
  3 SHOW DEFAULT
$ RECALL 2
$ DIRECTORY SEPT* 
  %DIRECT-W-NOFILES, no files found
$ RECALL 2
$ SET DEFAULT [SMITH.LETTERS]
  <edit command line>
$ SET DEFAULT [SMITH.MEMOS] 
$ RECALL 2
$ DIRECTORY SEPT* 
 
      

This example starts with a SHOW DEFAULT and a DIRECTORY command. After not finding the file you want, enter the SET DEFAULT command to move to the LETTERS subdirectory. Next use the RECALL/ALL command to see the list of commands you have entered. Enter the RECALL 2 command to repeat the DIRECTORY command in the LETTERS subdirectory. Because you still have not found the file you want, enter the RECALL 2 command again to recall the SET DEFAULT command. (With the entry of the latest DIRECTORY command, SET DEFAULT becomes command 2 in the RECALL list.) Edit the command line so that the system sets the default to the MEMOS subdirectory. Finally, recall the DIRECTORY command to try once more to find the file.

$ TYPE COMMANDS.LIS
DIRECTORY
RUN AUTHORIZE
SET PROCESS/PRIVILEGES=ALL
$ RECALL/INPUT=COMMANDS.LIS
$ RECALL/ALL
  1 SET PROCESS/PRIVILEGES=ALL
  2 RUN AUTHORIZE
  3 DIRECTORY
  4 TYPE COMMANDS.LIS
 
      

This example shows the contents of the COMMANDS.LIS file with the TYPE command, then uses the RECALL/INPUT=COMMANDS.LIS command to place the commands into the recall buffer. Issuing the RECALL/ALL command subsequently shows the numbered display of commands in the recall buffer.

$ RECALL/OUTPUT=NEW_COMMANDS.LIS
$ TYPE NEW_COMMANDS.LIS
TYPE COMMANDS.LIS
DIRECTORY
RUN AUTHORIZE
SET PROCESS/PRIVILEGES=ALL
 
      

This example places the contents of the recall buffer (see the previous example) into the NEW_COMMANDS.LIS file. Note that they are not numbered and in the reverse sequence of the RECALL/ALL command output.

$ RECALL/ALL SHOW
  1 show system
  4 show user peleg
  5 show intrusion
  6 show error
  7 show time
 
      

This example displays all occurrences of the SHOW command in the recall buffer.

$ RECALL/SEARCH devi
  1 dir sys$sysdevice:[000000]
  4 show device dk
 
      

This example displays all commands in the recall buffer that contain the string "devi".