Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

Linux Shell ϵÄÊä³öÖØ¶¨Ïò


Linux Shell »·¾³ÖÐÖ§³ÖÊäÈëÊä³öÖØ¶¨Ïò£¬Ó÷ûºÅ<ºÍ>À´±íʾ¡£0¡¢1ºÍ2·Ö±ð±íʾ±ê×¼ÊäÈë¡¢±ê×¼Êä³öºÍ±ê×¼´íÎóÐÅÏ¢Êä³ö£¬¿ÉÒÔÓÃÀ´Ö¸¶¨ÐèÒªÖØ¶¨ÏòµÄ±ê×¼ÊäÈë»òÊä³ö£¬±ÈÈç 2>a.txt ±íʾ½«´íÎóÐÅÏ¢Êä³öµ½Îļþa.txtÖС£
ͬʱ£¬»¹¿ÉÒÔÔÚÕâÈý¸ö±ê×¼ÊäÈëÊä³öÖ®¼äʵÏÖÖØ¶¨Ïò£¬±ÈÈ罫´íÎóÐÅÏ¢ÖØ¶¨Ïòµ½±ê×¼Êä³ö£¬¿ÉÒÔÓà 2>&1À´ÊµÏÖ¡£
LinuxÏ»¹ÓÐÒ»¸öÌØÊâµÄÎļþ/dev/null£¬Ëü¾ÍÏñÒ»¸öÎÞµ×¶´£¬ËùÓÐÖØ¶¨Ïòµ½ËüµÄÐÅÏ¢¶¼»áÏûʧµÃÎÞÓ°ÎÞ×Ù¡£ÕâÒ»µã·Ç³£ÓÐÓ㬵±ÎÒÃDz»ÐèÒª»ØÏÔ³ÌÐòµÄËùÓÐÐÅϢʱ£¬¾Í¿ÉÒÔ½«Êä³öÖØ¶¨Ïòµ½/dev/null¡£
Èç¹ûÏëÒªÕý³£Êä³öºÍ´íÎóÐÅÏ¢¶¼²»ÏÔʾ£¬ÔòÒª°Ñ±ê×¼Êä³öºÍ±ê×¼´íÎó¶¼Öض¨Ïòµ½/dev/null£¬ ÀýÈ磺
# ls 1>/dev/null 2>/dev/null
»¹ÓÐÒ»ÖÖ×ö·¨Êǽ«´íÎóÖØ¶¨Ïòµ½±ê×¼Êä³ö£¬È»ºóÔÙÖØ¶¨Ïòµ½ /dev/null£¬ÀýÈ磺
# ls >/dev/null 2>&1
×¢Ò⣺´Ë´¦µÄ˳Ðò²»Äܸü¸Ä£¬·ñÔò´ï²»µ½ÏëÒªµÄЧ¹û£¬´ËʱÏȽ«±ê×¼Êä³öÖØ¶¨Ïòµ½ /dev/null£¬È»ºó½«±ê×¼´íÎóÖØ¶¨Ïòµ½±ê×¼Êä³ö£¬ÓÉÓÚ±ê×¼Êä³öÒѾ­Öض¨Ïòµ½ÁË/dev/null£¬Òò´Ë±ê×¼´íÎóÒ²»áÖØ¶¨Ïòµ½/dev/null£¬ÓÚÊÇÒ»Çо²ÇÄÇÄ:-)


Ïà¹ØÎĵµ£º

linuxϵÄÔ¶³ÌͼÐÎ×ÀÃæ£¬VNCÅäÖÃ


ת×Ô£ºhttp://blog.itpub.net/post/33256/413374/
ÔõôÑùÔÚºìñÆóÒµLinux2.1ÉÏÅäÖÃVNC?
ÔõÑùÅäÖÃVNC·þÎñÆ÷ʹÆäÄÜÔÚºìñÆóÒµLinux3ϵͳÒýµ¼Ê±×Ô¶¯Æô¶¯?
Ôõ
ôÑùÔÚºìñÆóÒµLinux2.1ÉÏÅäÖÃVNC?
½â¾ö·½·¨:1. Ê×ÏÈ£¬ÎÒÃÇÐèÒª²é¿´ÊÇ·ñÒѾ­°²×°ÁËÐèÒªµÄVNC°ü¡£×÷Ϊ¸ùÓû§£¬ÔËÐÐÕâ¸öÃüÁ
rpm
-qa | grep vnc
Èç¹ûRPMÃ ......

Linux»·¾³½ø³Ì¼äͨÐÅ£¨Ò»£©


Linux»·¾³½ø³Ì¼äͨÐÅ£¨Ò»£©
¹ÜµÀ¼°ÓÐÃû¹ÜµÀ
 
 
 
¼¶±ð£º ³õ¼¶
Ö£ÑåÐË (mlinux@163.com)¹ú·À¿Æ´ó¼ÆËã»úѧԺ
2002 Äê 12 ÔÂ 11 ÈÕ
ÔÚ±¾ÏµÁÐÐòÖÐ×÷Õ߸ÅÊöÁË linux ½ø³Ì¼äͨÐŵļ¸ÖÖÖ÷ÒªÊֶΡ£ÆäÖйܵÀºÍÓÐÃû¹ÜµÀÊÇ×îÔçµÄ½ø³Ì¼äͨÐÅ»úÖÆÖ®Ò»£¬¹ÜµÀ¿ÉÓÃÓÚ¾ßÓÐÇ×Ôµ¹ØÏµ½ø³Ì¼äµÄͨÐÅ£¬ÓÐÃû¹ÜµÀ¿Ë·þÁ˹ܵ ......

linux shell ¿ØÖƽű¾Ö´ÐдÎÊý

ÏÂÃæÊǰ³Ð´µÄ²âÊԽű¾£¬ÎªÁËÄÜÔËÐжà´Î²âÊÔ³ÌÐòÐÔÄÜ£¬Ïë¿ØÖÆÔËÐиöÊý£¬Í¨¹ýlockfile ºÍ grepÅäºÏ½øÐÐÏÞÖÆ¡£
#!/bin/bash
. /etc/profile
project=simnin
export CLASSPATH=.:/usr/$project:$CLASSPATH
for jarfile in /usr/$project/lib/*.jar ; do
if ! echo $CLASSPATH | grep $jarfile > /dev/null
then
&nbs ......

Linux google chrome µ¼ÈëÖ¤Êé

Linux°æµÄgoogle-chrome£¬ÎªÁË"²»ÖØÔìÂÖ×Ó"£¬Ê¹ÓõÚÈý·½¹¤¾ß½øÐÐÖ¤ÊéµÄÑéÖ¤¡£
·½·¨ÈçÏ£º
ÏȾöÌõ¼þ£º°²×°ºÃµÚÈý·½µÄÖ¤Êé¹ÜÀí¹¤¾ß£º
yum install nss-tools
µÚÒ»¡¢´ÓhttpsÍøÕ¾£¬µ¼³öCAÖ¤Ê飬·½·¨²Î¿¼£º
http://blog.avirtualhome.com/2010/02/02/adding-ssl-certificates-to-google-chrome-linux-ubuntu/
¿¼Âǵ½Ò»Ð©Ó¢ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ