سه شنبه,۱۱ آذر ماه ۱۳۹۹مطابق با ۱۵ ربيع الثاني ۱۴۴۲ هجرى قمرى
The Perl symbolic debugger is invoked with perl -d.
h Prints out a help message.
T Prints a stack trace.
s Single steps.
n Single steps around subroutine call.
RETURN key Repeats last s or n.
r Returns form the current subroutine.
c [ LINE ] Continues (until LINE, or another breakpoint, or exit).
p EXPR Prints EXPR.
w Lists window around current line.
– Lists previous window.
f FILE Switches to FILE and starts listing it.
l SUB Lists the named subroutine.
S List the names of all subroutines.
/PATTERN/ Searches forward for PATTERN.
?PATTERN? Searches backward for PATTERN.
l [ RANGE ] Lists a range of lines. RANGE may be a number, start-end, start+amount, or a subroutine name. If RANGE is omitted, lists next window.
b [ LINE [ CONDITION ] ] Sets breakpoint at LINE; default is the current line.
b SUB [ CONDITION ] Sets breakpoint at the subroutine.
d [ LINE ] Deletes breakpoint at the given line.
D Deletes all breakpoints.
L Lists lines that have breakpoints or actions.
a LINE COMMAND Sets an action for line.
A Deletes all line actions.
< COMMAND Sets an action to be executed before every debugger prompt.
> COMMAND Sets an action to be executed before every s, c or n command.
V [ PACKAGE [ VARS ] ] Lists all variables in a package. Default package is main.
X [ VARS ] Like V, but assumes current package.
! [ [-]NUMBER ] Re-executes a command. Default is the previous command.
H [ -NUMBER ] Displays the last -NUMBER commands of more than one letter.
t Toggles trace mode.
=[ ALIAS VALUE ] Sets alias, or lists current aliases.
q Quits. You may also use your EOF key character.
COMMAND Executes COMMAND as a Perl statement.
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