{"id":174,"date":"2013-09-18T14:48:28","date_gmt":"2013-09-18T06:48:28","guid":{"rendered":"http:\/\/ufqi.com\/blog\/?p=174"},"modified":"2016-09-04T07:09:58","modified_gmt":"2016-09-03T23:09:58","slug":"linux-shell-commands","status":"publish","type":"post","link":"https:\/\/ufqi.com\/blog\/linux-shell-commands\/","title":{"rendered":"\u5e38\u7528Linux\u547d\u4ee4\u7ec4\u5408"},"content":{"rendered":"<table border=\"0\" width=\"770\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td width=\"40\">\u5e8f\u53f7<\/td>\n<td width=\"278\"><strong>\u4efb\u52a1<\/strong><\/td>\n<td width=\"456\"><strong>\u547d\u4ee4\u7ec4\u5408<\/strong><\/td>\n<\/tr>\n<tr>\n<td height=\"56\">1<\/td>\n<td>\u5220\u96640\u5b57\u8282\u6587\u4ef6<\/td>\n<td>find . -type f -size 0 -exec rm -rf {} \\; find . type f -size 0 -delete<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">2<\/td>\n<td>\u67e5\u770b\u8fdb\u7a0b\uff0c\u6309\u5185\u5b58\u4ece\u5927\u5230\u5c0f\u6392\u5217<\/td>\n<td>ps -e -o \u201c%C : %p : %z : %a\u201d|sort -k5 -nr<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">3<\/td>\n<td>\u6309cpu\u5229\u7528\u7387\u4ece\u5927\u5230\u5c0f\u6392\u5217<\/td>\n<td>ps -e -o \u201c%C : %p : %z : %a\u201d|sort -nr<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">4<\/td>\n<td>\u6253\u5370\u8bf4cache\u91cc\u7684URL<\/td>\n<td>grep -r -a jpg \/data\/cache\/* | strings | grep \u201chttp:\u201d | awk -F\u2019http:\u2019 \u2018{print \u201chttp:\u201d$2;}\u2019<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">5<\/td>\n<td>\u67e5\u770bhttp\u7684\u5e76\u53d1\u8bf7\u6c42\u6570\u53ca\u5176TCP\u8fde\u63a5\u72b6\u6001<\/td>\n<td>netstat -n | awk \u2018\/^tcp\/ {++S[$NF]} END {for(a in S) print a, S[a]}\u2019<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">6<\/td>\n<td>sed\u5728\u8fd9\u4e2a\u6587\u91ccRoot\u7684\u4e00\u884c\uff0c\u5339\u914dRoot\u4e00\u884c\uff0c\u5c06no\u66ff\u6362\u6210yes\u3002<\/td>\n<td>sed -i \u2018\/Root\/s\/no\/yes\/\u2019 \/etc\/ssh\/sshd_config<\/td>\n<\/tr>\n<tr>\n<td height=\"86.67\">7<\/td>\n<td>\u5982\u4f55\u6740\u6389mysql\u8fdb\u7a0b<\/td>\n<td>ps aux |grep mysql |grep -v grep\u00a0\u00a0|awk \u2018{print $2}\u2019 |xargs kill -9 killall -TERM mysqld kill -9 `cat \/usr\/local\/apache2\/logs\/httpd.pid`<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">8<\/td>\n<td>\u663e\u793a\u8fd0\u884c3\u7ea7\u522b\u5f00\u542f\u7684\u670d\u52a1(\u4ece\u4e2d\u4e86\u89e3\u5230cut\u7684\u7528\u9014\uff0c\u622a\u53d6\u6570\u636e)<\/td>\n<td>ls \/etc\/rc3.d\/S* |cut -c 15-<\/td>\n<\/tr>\n<tr>\n<td height=\"132\">9<\/td>\n<td>\u5982\u4f55\u5728\u7f16\u5199SHELL\u663e\u793a\u591a\u4e2a\u4fe1\u606f\uff0c\u7528EOF<\/td>\n<td>cat &lt;&lt; EOF +\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2013+ |\u00a0\u00a0\u00a0=== Welcome to Tunoff services ===\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0| +\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2014\u2013+ EOF<\/td>\n<\/tr>\n<tr>\n<td height=\"114.67\">10<\/td>\n<td>for\u7684\u7528\u6cd5(\u5982\u7ed9mysql\u5efa\u8f6f\u94fe\u63a5)<\/td>\n<td>cd \/usr\/local\/mysql\/bin for i in * do ln \/usr\/local\/mysql\/bin\/$i \/usr\/bin\/$i done<\/td>\n<\/tr>\n<tr>\n<td height=\"88\">11<\/td>\n<td>\u53d6IP\u5730\u5740<\/td>\n<td>ifconfig eth0 |grep \u201cinet addr:\u201d |awk \u2018{print $2}\u2019|cut -c 6- ifconfig | grep \u2018inet addr:\u2019| grep -v \u2019127.0.0.1\u2032 |cut -d: -f2 | awk \u2018{ print $1}\u2019<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">12<\/td>\n<td>\u5185\u5b58\u7684\u5927\u5c0f<\/td>\n<td>free -m |grep \u201cMem\u201d | awk \u2018{print $2}\u2019<\/td>\n<\/tr>\n<tr>\n<td height=\"68\">13<\/td>\n<td>\u67e5\u770b80\u7aef\u53e3\u7684\u8fde\u63a5\uff0c\u5e76\u6392\u5e8f<\/td>\n<td>netstat -an -t | grep \u201c:80\u2033 | grep ESTABLISHED | awk \u2018{printf \u201c%s %s\\n\u201d,$5,$6}\u2019 | sort<\/td>\n<\/tr>\n<tr>\n<td height=\"72\">14<\/td>\n<td>\u67e5\u770bApache\u7684\u5e76\u53d1\u8bf7\u6c42\u6570\u53ca\u5176TCP\u8fde\u63a5\u72b6\u6001<\/td>\n<td>netstat -n | awk \u2018\/^tcp\/ {++S[$NF]} END {for(a in S) print a, S[a]}\u2019<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">15<\/td>\n<td>\u7edf\u8ba1\u4e00\u4e0b\u670d\u52a1\u5668\u4e0b\u9762\u6240\u6709\u7684jpg\u7684\u6587\u4ef6\u7684\u5927\u5c0f<\/td>\n<td>find \/ -name *.jpg -exec wc -c {} \\;|awk \u2018{print $1}\u2019|awk \u2018{a+=$1}END{print a}\u2019<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">16<\/td>\n<td>CPU\u7684\u6570\u91cf<\/td>\n<td>cat \/proc\/cpuinfo |grep -c processor<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">17<\/td>\n<td>CPU\u8d1f\u8f7d<\/td>\n<td>cat \/proc\/loadavg<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">18<\/td>\n<td>CPU\u8d1f\u8f7d<\/td>\n<td>mpstat 1 1<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">19<\/td>\n<td>\u5185\u5b58\u7a7a\u95f4<\/td>\n<td>free<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">20<\/td>\n<td>\u78c1\u76d8\u7a7a\u95f4<\/td>\n<td>df -h<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">21<\/td>\n<td>\u5982\u53d1\u73b0\u67d0\u4e2a\u5206\u533a\u7a7a\u95f4\u63a5\u8fd1\u7528\u5c3d\uff0c\u53ef\u4ee5\u8fdb\u5165\u8be5\u5206\u533a\u7684\u6302\u8f7d\u70b9\uff0c\u7528\u4ee5\u4e0b\u547d\u4ee4\u627e\u51fa\u5360\u7528\u7a7a\u95f4\u6700\u591a\u7684\u6587\u4ef6\u6216\u76ee\u5f55<\/td>\n<td>du -cks * | sort -rn | head -n 10<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">22<\/td>\n<td>\u78c1\u76d8I\/O\u8d1f\u8f7d<\/td>\n<td>iostat -x 1 2<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">23<\/td>\n<td>\u7f51\u7edc\u8d1f\u8f7d<\/td>\n<td>sar -n DEV<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">24<\/td>\n<td>\u7f51\u7edc\u9519\u8bef<\/td>\n<td>netstat -i cat \/proc\/net\/dev<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">25<\/td>\n<td>\u7f51\u7edc\u8fde\u63a5\u6570\u76ee<\/td>\n<td>netstat -an | grep -E \u201c^(tcp)\u201d | cut -c 68- | sort | uniq -c | sort -n<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">26<\/td>\n<td>\u8fdb\u7a0b\u603b\u6570<\/td>\n<td>ps aux | wc -l<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">27<\/td>\n<td>\u67e5\u770b\u8fdb\u7a0b\u6811<\/td>\n<td>ps aufx<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">28<\/td>\n<td>\u53ef\u8fd0\u884c\u8fdb\u7a0b\u6570\u76ee<\/td>\n<td>vmwtat 1 5<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">29<\/td>\n<td>\u68c0\u67e5DNS Server\u5de5\u4f5c\u662f\u5426\u6b63\u5e38\uff0c\u8fd9\u91cc\u4ee561.139.2.69\u4e3a\u4f8b<\/td>\n<td>dig www.baidu.com @61.139.2.69<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">30<\/td>\n<td>\u68c0\u67e5\u5f53\u524d\u767b\u5f55\u7684\u7528\u6237\u4e2a\u6570<\/td>\n<td>who | wc -l<\/td>\n<\/tr>\n<tr>\n<td height=\"112\">31<\/td>\n<td>\u65e5\u5fd7\u67e5\u770b\u3001\u641c\u7d22<\/td>\n<td>cat \/var\/log\/rflogview\/*errors grep -i error \/var\/log\/messages grep -i fail \/var\/log\/messages tail -f -n 2000 \/var\/log\/messages<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">32<\/td>\n<td>\u5185\u6838\u65e5\u5fd7<\/td>\n<td>dmesg<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">33<\/td>\n<td>\u65f6\u95f4<\/td>\n<td>date<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">34<\/td>\n<td>\u5df2\u7ecf\u6253\u5f00\u7684\u53e5\u67c4\u6570<\/td>\n<td>lsof | wc -l<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">35<\/td>\n<td>\u7f51\u7edc\u6293\u5305\uff0c\u76f4\u63a5\u8f93\u51fa\u6458\u8981\u4fe1\u606f\u5230\u6587\u4ef6\u3002<\/td>\n<td>tcpdump -c 10000 -i eth0 -n dst port 80 &gt; \/root\/pkts<\/td>\n<\/tr>\n<tr>\n<td height=\"96\">36<\/td>\n<td>\u7136\u540e\u68c0\u67e5IP\u7684\u91cd\u590d\u6570 \u5e76\u4ece\u5c0f\u5230\u5927\u6392\u5e8f \u6ce8\u610f \u201c-t\\\u00a0\u00a0+0\u2033 \u4e2d\u95f4\u662f\u4e24\u4e2a\u7a7a\u683c\uff0cless\u547d\u4ee4\u7684\u7528\u6cd5\u3002<\/td>\n<td>less pkts | awk {\u2018printf $3\u2033\\n\u201d\u2018} | cut -d. -f 1-4 | sort | uniq -c | awk {\u2018printf $1\u2033 \u201c$2\u2033\\n\u201d\u2018} | sort -n -t\\\u00a0\u00a0+0<\/td>\n<\/tr>\n<tr>\n<td height=\"56\">37<\/td>\n<td>kudzu\u67e5\u770b\u7f51\u5361\u578b\u53f7<\/td>\n<td>kudzu \u2013probe \u2013class=network<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>\u5e8f\u53f7 \u4efb\u52a1 \u547d\u4ee4\u7ec4\u5408 1 \u5220\u96640\u5b57\u8282\u6587\u4ef6 find . -type f -siz &hellip; <a href=\"https:\/\/ufqi.com\/blog\/linux-shell-commands\/\">\u7ee7\u7eed\u9605\u8bfb <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7,2],"tags":[],"_links":{"self":[{"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/posts\/174"}],"collection":[{"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/comments?post=174"}],"version-history":[{"count":2,"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":1335,"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/posts\/174\/revisions\/1335"}],"wp:attachment":[{"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/media?parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/categories?post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ufqi.com\/blog\/wp-json\/wp\/v2\/tags?post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}