linux,shell编程。讲解详细，包括awk,sed,tr等工具的使用。对于初学者而言，非常有帮助。-linux, shell programming. Explain in detail, including awk, sed, tr and other tools. For starters, very helpful.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000993s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.061426s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001176s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001095s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000837s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003178s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000797s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003489s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014637s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001133s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 120413 [ RunTime:0.012349s ]
