Linux rmɾ³ýÎļþ¼ÐÃüÁî
ÔÚlinuxÖÐɾ³ýÒ»¸öĿ¼ºÜ¼òµ¥£¬ºÜ¶àÈË»¹ÊÇϰ¹ßÓÃrmdir£¬²»¹ýÒ»µ©Ä¿Â¼·Ç¿Õ£¬¾ÍÏÝÈëÉîÉîµÄ¿àÄÕÖ®ÖУ¬ÏÖÔÚʹÓÃrm -rfÃüÁî¼´¿É½â¾ö¡£
Ö±½Órm¾Í¿ÉÒÔÁË£¬²»¹ýÒª¼ÓÁ½¸ö²ÎÊý-rf ¼´£ºrm -rf Ŀ¼Ãû×Ö
-r ¾ÍÊÇÏòϵݹ飬²»¹ÜÓжàÉÙ¼¶Ä¿Â¼£¬Ò»²¢É¾³ý
-f ¾ÍÊÇÖ±½ÓÇ¿ÐÐɾ³ý£¬²»×÷ÈκÎÌáʾµÄÒâ˼
ɾ³ýÎļþ¼ÐʵÀý£º
rm -rf /var/log/httpd/access
Õ⽫»áɾ³ý/var/log/httpd/accessĿ¼ÒÔ¼°ÆäÏÂËùÓÐÎļþ¡¢Îļþ¼Ð
ÐèÒªÌáÐѵÄÊÇ£ºÊ¹ÓÃÕâ¸örm -rfµÄʱºòÒ»¶¨Òª¸ñÍâСÐÄ£¬ÒòΪÔÚÖÕ¶ËÀïÃæÉ¾³ýÎļþ²»¿É»Ö¸´.
µ±È»£¬rm»¹Óиü¶àµÄÆäËû²ÎÊýºÍÓ÷¨£¬man rm¾Í¿ÉÒԲ鿴ÁË
ɾ³ýÎļþʹÓÃʵÀý£º
rm -f /var/log/httpd/access.log
Õ⽫»áÇ¿ÖÆÉ¾³ý/var/log/httpd/access.logÕâ¸öÎļþ
Ïà¹ØÎĵµ£º
ÕâÕó×ÓÔÚlinuxϵÄÒ»¸öÏîÄ¿ÐèÒªÓõ½epollÀ´³ÐÊÜÍøÂçµÄ¸ß¸ºÔØ£¬µ«ÊÇÔÚʹÓõĹý³ÌÖоÍÓöµ½ÁËһЩÎÊÌâ¡£
ÔÚÕû¸ö¹ý³ÌÖУ¬ÎÒÊÇÓÃEPOLL µÄ±ßÔµ´¥·¢Ä£Ê½À´ÊµÏÖÎÒÏëÒªµÄ¹¦ÄÜ¡£
ÎÒÊÇÕâÑùʵÏֵģºÔÚEPOLLÀïÃæ°Ñ¼àÌýµÄÃèÊö·û¸ø¼ÓÁ˽øÈ¥£¬È»ºóµ÷ÓÃepoll_waitÀ´¶Ô¿Í»§¶ ......
ºÍBashµÄ»·¾³É趨ÓйصÄÎļþÓÐ
/etc/profile (Ö÷Òª)
$HOME/.bash_profile (Ö÷Òª)
$HOME/.bash_login
$HOME/.profile
$HOME/.bash_logout (Ö÷Òª)
$HOME/.bashrc (Ö÷Òª)
/etc/bashrc
˵Ã÷ÈçÏ£º
µÇÈë(login)ʱ
ÏÈÖ´ÐÐ /etc/profile
½Ó×Åbash»á¼ì²éʹÓÃÕßµÄ×Ô¼ÒĿ¼ÖУ¬ÊÇ·ñÓÐ .bash_profile »òÕß .bash_login»òÕß ......
ÖÜÐ÷ºê
http://zxuhong.blog.51cto.com/368977/74442
1.1 ¸ÅÊö
ÊÀ½ç±ê׼ʱ¼ä£¨Coordinated Universal Time£¬UTC£©£¬Ò²¾ÍÊÇ´ó¼ÒËùÊìÖªµÄ¸ñÁÖÍþÖαê׼ʱ ¼ä£¨Greenwich Mean Time£¬GMT£©¡£ÊÀ½ç¸÷µØÊ±¼äÒ²ÊÀ½ç±ê׼ʱ¼äΪ»ù×¼»®·ÖΪ²»Í¬µÄÊ±Çø£¬ÀýÈ磬ÖйúµÄ±±¾©Ê±¼äÓëUTCµÄʱ²îΪ+8£¬Ò²¾ÍÊÇUTC+8¡£ÃÀ¹úÊÇUTC-5¡£
& ......
linuxĿ¼¼Ü¹¹
/ ¸ùĿ¼
/bin ³£ÓõÄÃüÁî
binary file µÄÄ¿錄
/boot ´æ·ÅϵͳÆô¶¯Ê±±ØÐë¶ÁÈ¡µÄµµ°¸£¬°üÀ¨ºËÐÄ
(kernel) ÔÚÄÚ
/boot/grub/menu.lst GRUBÉèÖÃ
/boot/vm ......