Safeguard User's Guide (G06.24+, H06.03+)

Working With SAFECOM

Safeguard User’s Guide—422089-009

7-7

Displaying and Editing Previous Commands

SAFECOM provides four commands that allow you to display, change, and execute

commands that you previously entered during the current session. These commands

and their functions are:

The examples that follow highlight the main features of these commands. For complete

details, refer to the command descriptions in the Safeguard Reference Manual.

Displaying Previous Commands

Because SAFECOM retains the commands you enter during an interactive session,

you can use the HISTORY command to retrieve a specified number of the most recent

commands. If you enter the HISTORY command without specifying the number of

commands, the last 10 commands appear.

For example, the following command displays the last five commands entered during

your current session. The example assumes that the HISTORY command is the

seventh command you executed in this session.

=HISTORY 5

3=VOLUME $DATA.REPORT3

4=INFO / OUT MYFILES / DISKFILE *, DETAIL

5=HELP

6=HELP ASSUME

7=HISTORY 5

The HISTORY command adds line numbers to the commands even if your normal

SAFECOM prompt does not include them. However, the ?, !, and FC commands do not

display these line numbers unless your normal SAFECOM prompt includes a line

number.

The HISTORY command also allows you to delete all commands in the SAFECOM

history buffer and to reset line numbering to line 1:

=HISTORY RESET ALL

HISTORY Displays a designated number of the most recent commands entered during

the current session; also can clear the last command or all commands from

the history buffer.

? Displays a single previously entered command that you specify by line

number, relative line number, or text string.

! Functions like the ? command except that it also executes the displayed

command.

FC Functions like the ? command except that it also provides a command-line

template on which you can edit the displayed command