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yum list php*   //¿ÉÒԲ鿴phpµÄÏà¹ØÄ£¿é
yum install php //°²×°phpÕâ¸öÄ£¿é
phpÄ£¿éµÄ×Ô¶¯°²×°(ÀûÓÃpecl.php.netºÍpear.php.netÔÚÏß°²×°)£º
ÀûÓÃpearºÍpecl¹¤¾ß£¬Ê×ÏÈÐèÒª°²×°php-pearÄ£¿é£¬È»ºó
pecl install pecl-http  //°²×°pecl-phpÄ£¿é
pecl list-all  //²é¿´ÏßÉ϶¼ÓÐÄÄЩģ¿é£¬ÒÔ±ãÓÚ°²×°
perlÄ£¿éµÄ×Ô¶¯°²×°(ÀûÓÃwww.cpan.org/ ÔÚÏß°²×°)£º
perl¡¡-MCPAN¡¡-e¡¡shell¡¡¡¡
cpan>h  £¨»ñµÃ°ïÖú£©¡¡  
cpan>m £¨ÁгöCPANÉÏËùÓÐÄ£¿éµÄÁÐ±í£©¡¡
cpan>install¡¡module_name¡¡£¨×Ô¶¯Íê³É´ÓÏÂÔØµ½°²×°µÄÈ«¹ý³Ì¡££©¡¡  
cpan>q¡¡£¨°²×°Í꣬ºóÍ˳ö£©
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(1)Net::FTP
(2) Net::Telnet
(3) LWP::Simple, get()
(4) Expect
(5) XML::Simple, XMLin()
(6) Data::Dumper, Dumper()
(7) IO::Socket
(8) Date::Manip, DateCalc(), UnixDate()
(9) Date::Manip, Date_Cmp()
(10) File::Find, find()
(11) ExtUtils::Installed, new(), modules(), version()
(12) DBI, connect(), prepare(), execute(), fetchrow_array()
(13) Getopt::Std
(14) Proc::ProcessTable
(15) Shell
(16) Time::HiRes, sleep(), time()
(17) HTML::LinkExtor, links(), parse_file()
(18) Net::Telnet, open(), print(), getline()
(19) Compress::Zlib, gzopen(), gzreadline(), gzclose()
(20) Net::POP3, login(), list(), get()
(21) Term::ANSIColor
(22) Date::Calc Calendar(), Today()
(23) Term::Cap, Tgetend(), Tgoto, Tputs()
(24) HTTPD::Log::Filter
(25) Net::LDAP
(26) Net::SMTP mail(), to(), data(), datasend(), auth()
(27) MIME::Base64, encode_base64(), decode_base64()
(28) Net::IMAP::Simple, login(), mailboxes(), select(), get()...
(29) Bio::DB::GenBank, Bio::SeqIO
(30) Spreadsheet::ParseExcel
(31) Text::CSV_XS, parse(), fields(), error_input()
(32) Benchmark
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RPM/DPKG Á½´óÕóÓª¼ò½é
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×°ÁËPHP-5.3.0, Æô¶¯µÄʱºò×ÜÊÇ»áÓÐ
"[06-Aug-2009 13:27:31] PHP Warning:  PHP Startup: It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are stil ......

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popen
fpassthru
shell_exec
exec
system
1.popen
resource popen
( string command, string mode )
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À´¹Ø±Õ ......

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Linuxϲ鿴֧³ÖµÄÐźÅÁбí:
~$ kill -l
1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL
5) SIGTRAP 6) SIGABRT 7) SIGBUS 8) SIGFPE
9) SIGKILL 10) SIGUSR1 11) SIGSEGV 12) SIGUSR2
13) SIGPIPE 14) SIGALRM 15) SIGTERM 17) SIGCHLD
18) SIGCONT 19) SIGSTOP 20) SIGTSTP 21) SIGTTIN
22) SIGTTOU 23) SIGUR ......

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SHELL=/bin/bash
PATH=/sbin:/bin:/usr/sbin:/usr/bin
MAILTO=root
HOME=/
# run-parts
01 * * * * root run-parts /etc/cron.hourly
02 4 * * * root run-parts /etc/cron.daily
22 4 * * 0 root run-parts /etc/cron.weekly
42 4 1 * * root run-parts /etc/cr ......
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