HP gnu source-level debugger 5992-4701 manual Commands for controlled output

•VxWorks (Wind River Systems real-time OS): .vxgdbinit

•OS68K (Enea Data Systems real-time OS): .os68gdbinit

•ES-1800 (Ericsson Telecom AB M68000 emulator): .esgdbinit

You can also request the execution of a command file with the source command: source filename Execute the command file filename.

The lines in a command file are executed sequentially. They are not printed as they are executed. An error in any command terminates execution of the command file.

Commands that would ask for confirmation if used interactively proceed without asking when used in a command file. Many GDB commands that normally print messages to say what they are doing omit the messages when called from command files.4

18.4 Commands for controlled output

During the execution of a command file or a user-defined command, normal GDB output is suppressed; the only output that appears is what is explicitly printed by the commands in the definition. This section describes three commands useful for generating exactly the output you want.

echo text	Print text. Nonprinting characters can be
	included in text using C escape sequences, such
	as \n to print a newline. No newline is printed
	unless you specify one. In addition to the
	standard C escape sequences, a backslash
	followed by a space stands for a space. This is
	useful for displaying a string with spaces at the
	beginning or the end, since leading and trailing
	spaces are otherwise trimmed from all
	arguments. To print and foo = , use the
	command echo \ and foo = \ .
	A backslash at the end of text can be used, as in
	C, to continue the command onto subsequent
	lines. For example,
	echo This is some text\n\
	which is continued\n\
	onto several lines.\n
	produces the same output as
	echo This is some text\n
	echo which is continued\n
	echo onto several lines.\n
output expression	Print the value of expression and nothing but
	that value: no newlines, no `$nn = '. The value is

4. On DOS/Windows systems, the home directory is the one pointed to by the HOME environment variable.

290 Canned Sequences of Commands