{"id":106,"date":"2023-06-05T13:31:34","date_gmt":"2023-06-05T05:31:34","guid":{"rendered":"http:\/\/pro369.com\/linux\/?p=106"},"modified":"2019-05-21T09:17:29","modified_gmt":"2019-05-21T09:17:29","slug":"unix-%e7%b3%bb%e7%b5%b1%e7%ae%a1%e7%90%86%e5%93%a1%e7%9a%84-n-%e7%a8%ae%e6%ad%a6%e5%99%a8","status":"publish","type":"post","link":"https:\/\/por.tw\/linux\/unix-%e7%b3%bb%e7%b5%b1%e7%ae%a1%e7%90%86%e5%93%a1%e7%9a%84-n-%e7%a8%ae%e6%ad%a6%e5%99%a8\/","title":{"rendered":"Unix \u7cfb\u7d71\u7ba1\u7406\u54e1\u7684 N \u7a2e\u6b66\u5668"},"content":{"rendered":"

Unix \u7cfb\u7d71\u7ba1\u7406\u54e1\u7684 N \u7a2e\u6b66\u5668<\/p>\n

Plan the work, work the plan \u5148\u5f9e\u6548\u80fd\u6aa2\u67e5\u5c0f\u5de5\u5177\u8457\u624b
\u6aa2\u8996\u7cfb\u7d71\u8ca0\u8f09\u6458\u8981 – w, top, free(linux) \u51c6\u5be6\u6642\u66f4\u65b0\u7684\u7cfb\u7d71\u8ca0\u8f09\u6458\u8981 – top, vmstat, iostat \u7a0b\u5f0f\u6aa2\u8996 – top, ps, lsof \u7a0b\u5f0f\u8ffd\u8e64 – strace (truss), ltrace \u7db2\u8def\u9023\u7dda\u60c5\u6cc1 – netstat, lsof \u6a94\u6848\u958b\u555f\u60c5\u6cc1 – lsof, fuser Linux\u4e0b\u842c\u91d1\u6cb9 – ls, cat (with \/proc)
\u6aa2\u8996\u6b77\u53f2 – sar \u4ee5\u4e0b\u662f\u4e00\u4e9b\u5c0f tip 1. Linux \u4e0b\u591a\u6578\u4eba\u6703\u4f7f\u7528 netstat -ant |wc -l \u6216 netstat netstat -ant|grep EST |wc -l
\u9019\u6a23\u7684\u6307\u4ee4\u4f86\u6aa2\u8996\u73fe\u7528\u7684\u9023\u7dda\u7684\u6458\u8981\u60c5\u6cc1\u3002
<\/strong>
<\/p>\n

netstat \u6383\u7784\u5f88\u8cbb\u6642\u9593\uff0c\u5feb\u901f\u3001\u6e96\u78ba\u3001\u5728\u7cfb\u7d71\u53cd\u61c9\u6162\u7684\u6642\u5019\u5c24\u5176\u6709\u5229\u7684\u65b9\u6cd5 # cat \/proc\/net\/sockstat
2. \u6aa2\u8996\u73fe\u7528\u7684\u7cfb\u7d71\u8ca0\u8f09\u6700\u7c21\u55ae\u7684\u6307\u4ee4\u662f w\uff0c\u9019\u500b\u6307\u4ee4\u5728\u9ad8\u8ca0\u8f09\uff0c\u7cfb\u7d71\u53cd\u61c9\u6162\u7684\u60c5\u6cc1\u4e0b\u6700\u53ef\u9760
3. strace -p \u5f88\u5f37\u5927\uff0c\u6c92\u6709\u65e5\u8a8c\u7684\u60c5\u6cc1\u4e0b\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u77ad\u89e3\u7a0b\u5f0f\u7a76\u7adf\u5728\u505a\u4ec0\u9ebc 4. lsof \u4e5f\u5f88\u5f37\u5927\uff0clsof -n -i TCP:80 \u548c netstat -natp |grep :80 \u7684\u6548\u679c\u57fa\u672c\u76f8\u540c\uff0c\u4f46\u63ed\u793a\u51fa\u984d\u5916\u7684\u6771\u897f
5. top \u4e0d\u6703\u6392\u5e8f\uff0c\u5c31\u4e0d\u7b97\u6703\u7528\uff0c\u5e38\u7528\u7684\u6392\u5e8f\u662f\u6309\u8a18\u61b6\u9ad4\u7528\u91cf\u6392\u5e8f\u548cCPU\u4f7f\u7528\u6642\u9593\u6392\u5e8f\uff0c\u5206\u5225\u662f\u6309 M \u548c P\u3002\u6309 s \u53ef\u4ee5\u6539\u8b8a\u66f4\u65b0\u9593\u9694\u3002
\u6309 h \u53ef\u4ee5\u770b\u8aaa\u660e\u3002 \u8f49\u81ea\u6821\u5167\u738b\u528d\u7684\u65e5\u8a8c Unix \u7cfb\u7d71\u7ba1\u7406\u54e1\u7684 n \u7a2e\u6b66\u5668 (1)\u9019\u4e9b\u5de5\u5177\u7684\u4f7f\u7528\u9806\u5e8f\u61c9\u8a72\u662f\u9019\u6a23\u7684<\/p>\n

1. \u9996\u5148\uff0c\u770b\u4e00\u4e0b\u7cfb\u7d71\u6458\u8981\uff0c\u7d50\u5408\u7cfb\u7d71\u7684\u7528\u9014\uff0c\u4f5c\u51fa\u8abf\u67e5\u65b9\u5411\u7684\u521d\u6b65\u5224\u65b7\u3002
\u7cfb\u7d71\u7528\u9014\u53ef\u4ee5\u7528 ps \u770b\u4e00\u4e0b\u5b8c\u6574\u7684\u7a0b\u5f0f\u6e05\u55ae\uff1b<\/p>\n

2. \u78ba\u5b9a\u65b9\u5411\u5f8c\uff0c\u4f7f\u7528\u5de5\u5177\u6aa2\u8996\u5177\u9ad4\u7684\u554f\u984c\uff1b<\/p>\n

3. \u4f7f\u7528\u5de5\u5177\u5c0b\u627e\u5f15\u8d77\u8a72\u5177\u9ad4\u554f\u984c\u7684\u539f\u56e0\uff1b \u7d93\u9a57\u591a\u4e86\u4ee5\u5f8c\uff0c\u7b2c\u4e8c\u6b65\u6709\u6642\u5019\u53ef\u4ee5\u7701\u53bb\uff0c\u4f46\u6ce8\u610f\u53ef\u80fd\u6703\u8aa4\u5165\u6b67\u9014\u3002
\u66f4\u65b0\uff1a\u6709\u4e9b\u662f linux specific \u7684\uff0c\u8a3b\u660e\u4e00\u4e0b Unix \u7cfb\u7d71\u7ba1\u7406\u54e1\u7684 n \u7a2e\u6b66\u5668
(2)\u7db2\u8def\u95dc\u806f\u7684\u5de5\u5177 \u7db2\u8def\u9023\u7dda\u60c5\u6cc1 – netstat, lsof \u8def\u7531\u8868 – route, ip(linux), netstat \u6aa2\u8996\u548c\u914d\u7f6e\u7db2\u8def\u4ecb\u9762 – ifconfig, ip(linux) \u7db2\u8def\u5361\u88dd\u7f6e\u914d\u7f6e – ethtool & mii-tool (linux) \u7db2\u8def\u93c8\u8def\u8cea\u91cf\u6aa2\u67e5 – ping, mtr, traceroute \u7db2\u8def\u5305\u6aa2\u67e5 – tcpdump, wireshark \u6d41\u91cf\u76e3\u63a7 – iftop, iptraf, jnettop \u842c\u7528TCP\u9023\u7dda\u6e2c\u8a66\u5de5\u5177 – telnet, netcat (nc), openssl s_client \u6d41\u91cf\u7ba1\u7406\u548c\u63a7\u5236 – tc (linux) \u9632\u706b\u7246\u8a2d\u5b9a – iptables(linux) DNS\u67e5\u8a62\u5de5\u5177 – host, nslookup, dig Linux \u4e0b\u7684\u842c\u91d1\u6cb9 – cat, echo (with \/proc) \u6aa2\u8996\u6b77\u53f2 – sar \u4e0b\u9762\u662f\u4e00\u4e9b\u5c0f tip 1. netstat \u7684 -p \u53c3\u6578\u5f88\u6709\u7528\uff0c\u5b83\u53ef\u4ee5\u986f\u793a socket \u5c0d\u61c9\u7684\u7a0b\u5f0f\u7684 pid \u548c \u7a0b\u5f0f\u540d\uff0c\u6211\u5e38\u5e38\u4f7f\u7528 netstat -ntlp \u548c netstat -nulp \u4f86\u6aa2\u67e5\u5b88\u8b77\u7a0b\u5f0f<\/p>\n

2. \u6aa2\u67e5\u8def\u7531\u8868\uff0cnetstat -nr \u548c route -n \u662f\u5dee\u4e0d\u591a\u7684\uff0c\u4e0d\u904e\u5217\u6709\u4e9b\u5dee\u5225\u3002\u6709\u4e9b\u7cfb\u7d71\u4e0a route \u6307\u4ee4\u4e0d\u80fd\u7528\u4f86\u6aa2\u8996\u8def\u7531\u8868\uff0c\u5fc5\u9808\u7528 netstat -r\u3002Linux \u4e0a\uff0croute -ne \u7b49\u65bc netstat -nr<\/p>\n

3. ip \u662f\u500b\u5f37\u5927\u7684\u6307\u4ee4\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u6aa2\u67e5\u548c\u914d\u7f6e\u4ecb\u9762 IP \u4f4d\u5740\u3001\u6aa2\u67e5\u548c\u914d\u7f6e\u8def\u7531 ip addr … ip route … Linux\u7684\u9032\u968e\u8def\u7531\u529f\u80fd\u5fc5\u9808\u7528 ip \u6307\u4ee4\u4f86\u5be6\u73fe (ip rule + ip route)<\/p>\n

4. telnet \u9664\u4e86\u9023\u7dda telnet \u670d\u52d9\u5916\uff0c\u9084\u53ef\u4ee5\u5efa\u7acb\u4e00\u500b tcp \u9023\u7dda\u4e26\u548c\u4f3a\u670d\u5668\u4e92\u52d5\uff0c\u9019\u500b\u529f\u80fd\u548c netcat \u76f8\u540c\u3002openssl s_client -connect server:port \u7528\u65bc\u5efa\u7acb SSL \u9023\u7dda\uff08\u8036\uff0c\u4f60\u53ef\u4ee5\u548c https \u670d\u52d9\u4e92\u52d5\uff09<\/p>\n

5. tc \u4e00\u822c\u7528\u4f86\u5c0d\u6d41\u91cf\u9032\u884c\u512a\u5148\u7d1a\u5283\u5206\u6216\u505a\u6d41\u91cf\u9650\u5236\u3002\u5728\u6e2c\u8a66\u4e2d\u53ef\u4ee5\u7528 tc qdisc change dev eth0 root netem …… \u4f86\u6a21\u64ec\u7db2\u8def\u5ef6\u6642\u548c\u4e1f\u5305\u7b49\u60c5\u6cc1\u3002
\u5728 10ms \u5ef6\u6642\u548c 0ms \u5ef6\u6642\u7684\u60c5\u6cc1\u4e0b\uff0c\u7cfb\u7d71\u8ca0\u8f09\u80fd\u529b\u6709\u8cea\u7684\u5340\u5225\u3002<\/p>\n

6. \u8b39\u614e\u4f7f\u7528 iptables\u3002\u9664\u975e\u4f60\u6b63\u5728\u914d\u7f6e\u4e00\u500b\u9632\u706b\u7246\uff0c\u5426\u5247\u80fd\u4e0d\u7528\u5c31\u4e0d\u7528\u3002\u5728\u4e00\u500b\u5927\u7684\u4f3a\u670d\u5668\u7fa4\u88e1\uff0c\u4e00\u500b\u6c92\u505a\u516c\u958b\u8a18\u9304\u7684 iptables \u898f\u5247\u5f88\u53ef\u80fd\u9020\u6210\u5927\u7684\u640d\u5931\uff0c\u5916\u5e36\u4eba\u529b\u6d6a\u8cbb
7. mtr \u6bd4 traceroute \u597d
8. \u6aa2\u67e5\u7db2\u8def\u554f\u984c\u6642\uff0cping -f \u53ef\u80fd\u6bd4 ping \u597d\uff1aping \u4e0d\u4e1f\u5305\uff0c\u800c ping -f \u624d\u986f\u793a\u51fa\u554f\u984c
9. \u591a\u6578\u7db2\u8def\u95dc\u806f\u6307\u4ee4\u90fd\u5e36\u6709 -n \u53c3\u6578\uff08lsof \u4e5f\u6709\uff09\uff0c\u7981\u7528\u53cd\u5411\u529f\u80fd\u8b8a\u6578\u540d\u67e5\u8a62\u3002\u53cd\u5411\u529f\u80fd\u8b8a\u6578\u540d\u67e5\u8a62\u5f88\u591a\u6642\u5019\u6703\u5f15\u8d77\u554f\u984c\uff0c\u8af8\u5982"tcpdump \u70ba\u4ec0\u9ebc\u6293\u4e0d\u5230\u5305"\uff0c"ping \u600e\u9ebc\u6b7b\u4e86"\uff0c\u800c\u4e14\u5f88\u6162\u3002\u7528 -n \u61c9\u8a72\u662f\u4e0b\u610f\u8b58\u7684\uff0c\u4e0d\u9700\u8981\u5225\u4eba\u63d0\u9192\u4f60\uff0c\u4e0d\u904e mtr \u4f8b\u5916\uff0c\u5b83\u7684\u53cd\u5411\u529f\u80fd\u8b8a\u6578\u540d\u67e5\u8a62\u662f\u7570\u6b65\u7684
10. tcpdump \u5fc5\u9808\u719f\u6089\uff0c\u5982\u679c\u9084\u6c92\u628a tcpdump \u7684 man page \u901a\u8b80\u4e00\u904d\uff0c\u8d95\u7dca\u7684
11. \u7db2\u7dda\u554f\u984c\u662f\u4f60\u7d93\u5e38\u60f3\u4e0d\u5230\u4f46\u5fc5\u9808\u60f3\u7684\u3002ethtool \u548c mii-tool \u53ef\u4ee5\u8aaa\u660e\u4f60\u77ad\u89e3\u73fe\u7528\u7684\u7db2\u7dda\u7684\u9023\u7dda\u72c0\u614b\u3002ethtool \u9084\u7528\u65bc\u914d\u7f6e\u4e00\u4e9b\u7db2\u8def\u5361\u9a45\u52d5\u7684\u53c3\u6578\uff0c\u4f8b\u5982 TSO \uff08Tcp segmentation offload\uff09\uff0c\u93c8\u8def\u901f\u5ea6\u3002\u5f37\u5236\u8a2d\u5b9a\u7db2\u8def\u5361\u93c8\u8def\u901f\u7387\u80fd\u89e3\u6c7a\u554f\u984c\uff0c\u4f46\u66f4\u591a\u7684\u662f\u5f15\u8d77\u554f\u984c\uff0c\u5982\u96e3\u4ee5\u89e3\u91cb\u7684\u4e1f\u5305\u3002
12. sar -n XXX \u53ef\u4ee5\u7528\u4f86\u77ad\u89e3\u6b77\u53f2
13. DNS \u67e5\u8a62\u554f\u984c\u53ef\u80fd\u6703\u5f15\u8d77\u4e00\u4e9b\u770b\u8d77\u4f86\u662f\u7db2\u8def\u554f\u984c\u7684\u554f\u984c\uff0c\u4f8b\u5982\u700f\u89bd\u5668\u6162\uff0cmysql \u8cc7\u6599\u5eab\u6162(\u5982\u679c\u6c92\u95dc\u53cd\u5411\u67e5\u8a62) \u7db2\u8def\u6545\u969c\u8a3a\u65b7\u4e00\u822c\u662f\u9019\u6a23\u7684\u9806\u5e8f
1. \u7db2\u8def\u662f\u5426\u4e2d\u65b7 (ping)
2. \u662f\u5426\u4e1f\u5305 (ping, ping -f, mtr)
3.1 \u8def\u7531\u662f\u5426\u6b63\u78ba (route -n, ip route \u7b49) 3.2 \u7db2\u7dda\u72c0\u614b (ethtool)
3.3 tcpdump \u6216\u662f ifconfig \u770b\u770b\u6536\u767c\u5305\u7684\u60c5\u6cc1\uff0c\u6bd4\u5982\u7570\u5e38\u6d41\u91cf\uff08\u5927\u91cf icmp\uff0carp\uff0cudp\uff09
3.4 arp \u8868 3.5 iptables \u898f\u5247 3.6 dns \u5728\u4e00\u4e9b\u8edf\u9ad4\u914d\u7f6e\u4e0a\uff08\u5982 lvs\uff09\uff0c\u8981\u4ed4\u7d30\u6aa2\u67e5\u8def\u7531\u548c arp\u3002
 
Unix \u7cfb\u7d71\u7ba1\u7406\u54e1\u7684 n \u7a2e\u6b66\u5668 (3)\u518d\u4f86\u770b\u770b\u6a94\u6848\u3001\u6a94\u6848\u7cfb\u7d71\u95dc\u806f\u7684\u6307\u4ee4 \u6a94\u6848\u7cfb\u7d71\u7684\u639b\u8f09 – mount, umount \u6a94\u6848\u7cfb\u7d71\u6aa2\u67e5 – fsck \u6aa2\u67e5\u6a94\u6848\u72c0\u614b – stat, ls \u6aa2\u67e5\u958b\u555f\u7684\u6a94\u6848 – fuser, lsof \u7a7a\u9593\u6aa2\u67e5 – df, du \u5c0b\u627e\u6a94\u6848 – find, locate, grep \u6a94\u6848\u6b0a\u9650 – chown, chmod, (linux) lsattr, chattr, getacl, setacl \u7279\u6b8a\u6a94\u6848 – mknod, mkfifo, mkdir, rmdir \u5e38\u7528\u7684\u58d3\u7e2e\u3001\u6b78\u6a94\u5de5\u5177 – tar, cpio, gzip, bzip2, 7zip, unzip, unrar Linux \u4e0b\u842c\u91d1\u6cb9 – cat, ls (with \/proc) \u4e0b\u9762\u662f\u4e00\u4e9b\u5c0f tip 1. mount \u7684 noatime \u9078\u9805\u9700\u8981\u7279\u5225\u7559\u610f\u3002\u5728\u958b\u555f\u6a94\u6848\u6642\uff0c\u7cfb\u7d71\u9810\u8a2d\u6703\u66f4\u65b0\u6a94\u6848\u7684 access time \u6642\u6233\uff0c\u5982\u679c\u5c0d\u6a94\u6848\u7684\u8a2a\u554f\u6a21\u5f0f\u662f\u5feb\u901f\u958b\u555f\u3001\u95dc\u9589\u5927\u91cf\u4e0d\u540c\u7684\u6a94\u6848\uff0c\u4f8b\u5982\u67d0\u4e9b\u641c\u5c0b\u61c9\u7528\u3001news \u4f3a\u670d\u5668\u7b49\uff0c\u5373\u4fbf\u61c9\u7528\u662f\u552f\u8b80\u7684\uff0c\u5c0d access time \u7684\u66f4\u65b0\u6703\u5f15\u8d77\u53ef\u89c0\u7684\u78c1\u789f\u5beb\u5165\u64cd\u4f5c\u3002noatime \u95dc\u9589\u5c0d access time \u7684\u66f4\u65b0\uff1b
2. mount -o remount \u5728\u4e0d\u5378\u8f09\u6a94\u6848\u7cfb\u7d71\u7684\u60c5\u6cc1\u4e0b\u91cd\u65b0\u8a2d\u5b9a\u639b\u8f09\u9078\u9805\uff0c\u6bd4\u5982 mount -o remount,noatime \/some_mnt_point\u3002\u5728 nfs \u4f3a\u670d\u5668\u5b95\u6a5f\uff0c\u7a0b\u5f0f\u50f5\u6b7b\u7684\u60c5\u6cc1\u4e0b\uff0c\u53ef\u4ee5\u7528 remount \u4f86\u4fee\u6539 nfs \u639b\u8f09\u9078\u9805 \uff08mount -o remount,intr\uff09\uff0c\u4f7f\u5f97\u7a0b\u5f0f\u53ef\u4ee5\u88ab\u6bba\u6b7b
3. \u5c0d\u639b\u8f09\u4e0a\u7684\u6a94\u6848\u7cfb\u7d71\u9032\u884c\u5beb\u6a21\u5f0f\u7684 fsck \u6703\u9020\u6210\u6a94\u6848\u7cfb\u7d71\u640d\u58de
4. du \u4e00\u500b\u76ee\u9304\uff0c\u4f46\u4e0d\u5e0c\u671b\u5167\u542b\u5176\u5b50\u76ee\u9304\u4e0a\u7684\u639b\u8f09\u7684\u6a94\u6848\u7cfb\u7d71\u6642\uff0c\u53ef\u4ee5\u7528 -x \u4f86\u907f\u514d\u8de8\u6a94\u6848\u7cfb\u7d71\u3002find \u662f -xdev\uff1bgnu tar \u662f –one-file-system
5. \u6709\u6642\u5019\uff0c\u5728\u6a94\u6848\u88ab\u958b\u555f\u7684\u60c5\u6cc1\u4e0b\u522a\u9664\u6a94\u6848\uff0c\u6703\u9020\u6210"\u96b1\u85cf"\u7684\u7a7a\u9593\u4f54\u7528\uff0cdf \u53ef\u4ee5\u770b\u898b\u7a7a\u9593\u6c92\u4e86\uff0c\u53ef\u662f du \u6aa2\u67e5\u7684\u7d50\u679c\u662f\u7a7a\u9593\u9084\u6709\u5f88\u591a\u5bcc\u9918\uff0c\u9019\u500b\u6642\u5019\uff0c\u53ef\u4ee5\u7528 lsof \/path \u4f86\u6aa2\u67e5\uff0c\u4f8b\u5982 # lsof \/tmp COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME apache2 7184 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 15216 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 15313 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 16041 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 22031 root 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 22778 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 22781 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) mysqld 29107 mysql 5u REG 8,8 0 12 \/tmp\/ibuA28pF (deleted) mysqld 29107 mysql 6u REG 8,8 0 13 \/tmp\/ibpTXuPw (deleted) mysqld 29107 mysql 7u REG 8,8 0 14 \/tmp\/ibQLeReo (deleted) mysqld 29107 mysql 8u REG 8,8 0 15 \/tmp\/ibNTdyEf (deleted) mysqld 29107 mysql 12u REG 8,8 0 16 \/tmp\/ib6kde56 (deleted) apache2 32516 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 32517 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 32558 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted) apache2 32560 www-data 15u REG 8,8 0 17 \/tmp\/.xcache.0.0.169170445.lock (deleted)
6.\u7a7a\u9593\u6709\u5bcc\u9918\uff0c\u6b0a\u9650\u4e5f\u6b63\u78ba\u4f46\u7121\u6cd5\u5beb\u5165\uff0c\u53ef\u80fd\u662f\u6a94\u6848\u7cfb\u7d71\u7684 inode \u7528\u5b8c\u4e86\uff0c\u7528 df -i \u6aa2\u67e5\u3002\u548c inode \u6709\u95dc\u7684\u53c3\u6578\uff0cls \u662f -i\uff0cfind \u662f -inum
7. Linux \u4e0b\uff0c\u7576\u4f60\u6c92\u6709 lsof \u53ef\u4ee5\u7528\u7684\u6642\u5019\uff0c\u5b78\u6703\u7528 ls -l \/proc\/\/fd\/\u3002\u4e0a\u9762\u7684 lsof \u4f8b\u5b50\u53ef\u4ee5\u5beb\u6210 # ls -l \/proc\/*\/fd |grep \/tmp
8. find \u4e0d\u50c5\u50c5\u80fd\u6309\u6a94\u540d\u641c\u5c0b\uff0c\u5b83\u9084\u53ef\u4ee5\u6309\u985e\u578b-type\u3001\u6642\u6233 -atime\/-ctime\/-mtime\u3001\u6bd4\u8f03\u6642\u6233 -newer\u3001\u6b0a\u9650 -perm\u3001\u5927\u5c0f -size\u3001\u6240\u6709\u8005 -uid\/-user \u7b49\u689d\u4ef6\u4f86\u627e\u6a94\u6848
9. locate \u5f88\u597d\u7528\uff0c\u4f46\u5b83\u4f9d\u8cf4\u65bc updatedb \u751f\u6210\u7684\u8cc7\u6599\u5eab\uff0c\u6709\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u9700\u8981\u9650\u5236 updatedb \u7d22\u5f15\u7684\u6a94\u6848\u7cfb\u7d71\u7bc4\u570d\u3002\u9019\u6642\uff0c\u8981\u77ad\u89e3 locate \u7684\u5c40\u9650\u6027
10. \u8981\u7406\u89e3\uff0c\u6b0a\u9650\u4e0d\u6b62 wrx \u9019\u4e09\u500b\u5c6c\u6027 11. bzip2 \u58d3\u7e2e\u7387\u6bd4 gzip \u597d\uff0c\u4f46\u5c0d\u65bc\u4e0a G \u7684\u6a94\u6848\uff0c\u901f\u5ea6\u904e\u5206\u6162 \u4ee5\u4e0a\u662f\u60a8\u7684\u597d\u53cb\u901a\u904eQQ\u4fe1\u7bb1\u95b1\u8b80\u7a7a\u9593\u5206\u4eab\u7d66\u60a8\u7684\u3002<\/p>\n

<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Unix \u7cfb\u7d71\u7ba1\u7406\u54e1\u7684 N \u7a2e\u6b66\u5668 Plan the work, work the plan \u5148\u5f9e\u6548\u80fd\u6aa2\u67e5\u5c0f\u5de5 […]<\/p>\n","protected":false},"author":1,"featured_media":531,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[20],"class_list":["post-106","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","tag-linux"],"_links":{"self":[{"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/posts\/106"}],"collection":[{"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/comments?post=106"}],"version-history":[{"count":0,"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/posts\/106\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/media\/531"}],"wp:attachment":[{"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/media?parent=106"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/categories?post=106"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/por.tw\/linux\/wp-json\/wp\/v2\/tags?post=106"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}