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cheats.txt  view on Meta::CPAN

(gdb) h[elp] all          # View all help sections
(gdb) f[rame]             # Show current line (line number and file)
(gdb) c[ontinue]          # Continue to a breakpoint
(gdb) d[elete]            # Delete all breakpoints

# View all functions in ddd (gdp,debugger)
info functions

# View entry point of executable program (OMS)
readelf -h omsGUI | grep "Entry point address"
# was: 0x80524a0
ddd <pid>
att <pid>
b * 0x80524a0
c

# Problem: Debugger (ddd,gdb) is ignoring my breakpoint and
#          moving unto another function
# Answer:  Add this line inside the function you want to breakpoint
# Note:    Causes a segmentation fault SIGSEGV
*(char*)0 = 0;

# Set outer variable in bash shell (hack)
a=123; (gdb --batch-silent -ex "attach $$" -ex 'set bind_variable("a", "456", 0)'); echo $a

cheats.txt  view on Meta::CPAN

xwininfo

# Get info about current xterm window
xdpyinfo

# Get size info of a named xterm window
xwininfo -name omsGUI_0_3

# Get info about an xterm window
xprop -id <window_id>
xprop -id 0x2400022

# Get position of the cursor
perl -e '$/ = "R";' -e 'print "\033[6n";my $x=<STDIN>;my($n, $m)=$x=~m/(\d+)\;(\d+)/;print "Current position: $m, $n\n";'

# Print how many columns and rows an xterm window uses for its screen size
tput cols
tput lines
reset

# Change fond/colors of an xterm window

cheats.txt  view on Meta::CPAN

		this.svg_def = {
			svg_help: 	  () => { return this.define_svg_help() },
			svg_settings: () => { return this.define_svg_settings() },
			svg_about:    () => { return this.define_svg_about() },
		};
		this.svg_about_id = 1;
	}

// CSS SvgHelper
	define_svg_help() {
		return  $('<svg class="svg_help" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">').append(
					$('<path d="M11 18h2v-2h-2v2zm1-16C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm0 18c-4.41 0-8-3.59-8-8s3.59-8 8-8 8 3.59 8 8-3.59 8-8 8zm0-14c-2.21 0-4 1.79-4 4h2c0-1.1.9-2 2-2s2 .9 2 2c0 2-3 1.75-3 5h2c0-2.25 3-2.5 3-5 0-2.21-1...
				).get(0);
	}

// CSS SvgHelper
	define_svg_settings() {
		return $('<svg class="svg_settings" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 20 20">').append(
					$('<path d="M15.95 10.78c.03-.25.05-.51.05-.78s-.02-.53-.06-.78l1.69-1.32c.15-.12.19-.34.1-.51l-1.6-2.77c-.1-.18-.31-.24-.49-.18l-1.99.8c-.42-.32-.86-.58-1.35-.78L12 2.34c-.03-.2-.2-.34-.4-.34H8.4c-.2 0-.36.14-.39.34l-.3 2.12c-.49.2-.94.47-1.35....
				).get(0);
	}