Operating in Direct Mode

GTM>write $zgbldir 
/usr/lib/fis-gtm/V5.4-002B_x86/mumps.gld
GTM>set $zgbldir="test.gld"
GTM>set a=10
GTM>set b=a
GTM>recall
1 set b=a
2 set a=10
3 set $zgbldir="test.gld"
4 write $zgbldir
GTM>

This REC[ALL] command displays the previously entered commands.

You can also display a selected command by entering RECALL and the line number of the command you want to retrieve.

Example:

GTM>recall 2
GTM>set a=10

This RECALLs the line number two (2).

If the RE[CALL] command includes a text parameter, GT.M displays the most recent command matching the text after the RE[CALL] command.

Example:

GTM>recall write
GTM>write $zgbldir

This RECALLs "WRITE", the command most recently beginning with this text. Note that the RECALL command text is case sensitive. The RECALL command with a text argument treats WRITE and write differently, that is, it treats them case sensitively. If you first type the WRITE command in lower-case and then type WRITE in upper-case to recall it, the RECALL command does not find a match.

Line Editing

GT.M permits the use of the GT.M command line editor at the Direct Mode prompt and during M READs from a terminal. The GT.M line editor allows cursor positioning using the <CTRL> key, edit keypad and function keys.

The GT.M Direct Mode line editing keys are as follows:

Backspace: Deletes the character to the left of the cursor

Delete: Deletes the character under the cursor

Up-arrow: Moves to a less recent item in the RECALL list

Down-arrow: Moves to a more recent item in the RECALL list

Left-arrow: Moves the cursor one character to the left

Right-arrow: Moves the cursor one character to the right

<CTRL-A>: Moves the cursor to the beginning of the line

<CTRL-B>: Moves the cursor one character towards the beginning of the line

<CTRL-D>: On an empty line, terminates GT.M and returns control to the shell.

<CTRL-E>: Moves the cursor to the end of the line

<CTRL-F>: Moves the cursor one character towards the end of the line

<CTRL-K>: Deletes all characters from the cursor to the end of the line

<CTRL-U>: Deletes the entire line

	Note
When entering commands at the direct mode prompt, the insert mode can be toggled for that line by using the insert key. When GT.M starts, insert mode is enabled unless the value of the gtm_principal_editing environment variable includes the string NOINSERT. If insert mode is disabled or enabled for the $PRINCIPAL device by an USE statement before returning to direct mode, it will remain disabled or enabled at direct mode. The insert mode can be toggled within a direct mode line using the terminal's INSERT key.

Note

When entering commands at the direct mode prompt, the insert mode can be toggled for that line by using the insert key. When GT.M starts, insert mode is enabled unless the value of the gtm_principal_editing environment variable includes the string NOINSERT. If insert mode is disabled or enabled for the $PRINCIPAL device by an USE statement before returning to direct mode, it will remain disabled or enabled at direct mode. The insert mode can be toggled within a direct mode line using the terminal's INSERT key.

Important

	Important
GT.M deletes the character under the cursor when you press the key on the keyboard that sends the escape sequence which maps to the kdch1 capability in your current terminfo entry (by convention, the Delete key). If the current terminfo entry is missing the kdch1 capability, GT.M uses a default value derived from members of the DEC VT terminal family, as it does for selected other missing terminfo capabilities. If you wish the Backspace and Delete keys to behave the same, the simplest way is to configure your terminal emulator to send the same character sequences for the Delete key that it does for the Backspace key. You can alternatively modify your terminfo setting: for example, create an editable version of your terminfo entry in a temporary file with a command such as: `infocmp > /tmp/$$_$TERM` and edit the temporary file to replace the entry for the kbs capability with the one in the kdch1 capability. Save your changes, and compile the edited file into a usable terminfo entry, for example: export TERMINFO=$HOME/.terminfo # You may need to add this to your login profile profilemkdir -p $TERMINFO tic /tmp/$$_$TERM # or whatever your temporary file name was When modifying terminfo capabilities, always look for unintended changes in the behavior of other applications, for example, text editors, that also rely on those capabilities. In the worst case, you may need to toggle between alternate terminfo entries for GT.M and other applications while you evaluate different options. Also, for terminfo entries without the cud1 capability, GT.M uses a linefeed when moving to the next line in direct mode.

GT.M deletes the character under the cursor when you press the key on the keyboard that sends the escape sequence which maps to the kdch1 capability in your current terminfo entry (by convention, the Delete key). If the current terminfo entry is missing the kdch1 capability, GT.M uses a default value derived from members of the DEC VT terminal family, as it does for selected other missing terminfo capabilities. If you wish the Backspace and Delete keys to behave the same, the simplest way is to configure your terminal emulator to send the same character sequences for the Delete key that it does for the Backspace key. You can alternatively modify your terminfo setting: for example, create an editable version of your terminfo entry in a temporary file with a command such as: infocmp > /tmp/$$_$TERM and edit the temporary file to replace the entry for the kbs capability with the one in the kdch1 capability. Save your changes, and compile the edited file into a usable terminfo entry, for example:

export TERMINFO=$HOME/.terminfo # You may need to add this to your login profile
profilemkdir -p $TERMINFO
tic /tmp/$$_$TERM # or whatever your temporary file name was

When modifying terminfo capabilities, always look for unintended changes in the behavior of other applications, for example, text editors, that also rely on those capabilities. In the worst case, you may need to toggle between alternate terminfo entries for GT.M and other applications while you evaluate different options. Also, for terminfo entries without the cud1 capability, GT.M uses a linefeed when moving to the next line in direct mode.