コマンド $ mysql -uroot -e 'show status' | grep -E 'Max|Threads' Max_used_connections 12 Threads_cached 0 Threads_connected 1 Threads_created 13280 Threads_running 1 Max_used_connections The maximum number of connections that have been in …

#!/usr/env/perl use strict; use warnings; sub eval_func { eval { return 1; }; if ($@) { return 0; } } my $res = eval_func; printf "%s\n", $res; # $res is blank!!! ハマった。perldoc -f evalしてみると... In both forms, the value returned is …

Facebook Software Engineering Managers are clearly characterized by progressive technical experience and demonstrated progression in management responsibility. Responsibility Be both a highly technical, hands-on coder and effective people …

Test::MockTimeの使い方にハマって調べたことをメモっておく。 Test::MockTime package Test::MockTime; ... BEGIN { *CORE::GLOBAL::time = \&Test::MockTime::time; *CORE::GLOBAL::localtime = \&Test::MockTime::localtime; *CORE::GLOBAL::gmtime = \&T…