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# breakpoint

(gdb) b filename:line (gdb) b namespace::classname::function (gdb) watch val

# function call stack

(gdb) bt

# step into

(gdb) s

# step over

(gdb) n

# step out

(gdb) finish

# continue running

(gdb) c

# run

(gdb) r

# display

(gdb) display valname

#print

(gdb) p valname

# attach to a process

(gdb) attach pid # detach (gdb) detach

# quit

(gdb) q

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