\u6211\u4eec\u5c31\u4f1a\u770b\u5230\u73af\u5883\u53d8\u91cf ($PATH) \u7684\u5177\u4f53\u5185\u5bb9\uff1a\u8fd9\u662f\u5f53\u8f93\u5165\u547d\u4ee4\u65f6\u7cfb\u7edf\u6240\u641c\u7d22\u53ef\u6267\u884c\u7a0b\u5e8f\u7684\u76ee\u5f55\uff0c\u6bcf\u4e00\u9879\u4e4b\u95f4\u4f7f\u7528\u5192\u53f7 (:) \u9694\u5f00\u3002\u79f0\u5b83\u4e3a\u73af\u5883\u53d8\u91cf\uff0c\u662f\u56e0\u4e3a\u5b83\u672c\u662f\u5c31\u662f shell \u73af\u5883\u7684\u4e00\u90e8\u5206 \u2014\u2014 \u8fd9\u662f\u5f53 shell \u6bcf\u6b21\u542f\u52a8\u65f6 shell \u53ca\u5176\u5b50\u8fdb\u7a0b\u53ef\u4ee5\u83b7\u53d6\u7684\u4e00\u7cfb\u5217\u4fe1\u606f\u3002
\n\u5f53\u6211\u4eec\u8f93\u5165\u4e00\u4e2a\u547d\u4ee4\u5e76\u6309\u4e0b\u56de\u8f66\u65f6\uff0cshell \u4f1a\u641c\u7d22 $PATH \u53d8\u91cf\u4e2d\u5217\u51fa\u7684\u76ee\u5f55\u5e76\u6267\u884c\u7b2c\u4e00\u4e2a\u77e5\u9053\u7684\u5b9e\u4f8b\u3002\u8bf7\u770b\u5982\u4e0b\u4f8b\u5b50\uff1a
\n

<\/p>\n

\u73af\u5883\u53d8\u91cf<\/strong><\/div>\n
\u5047\u5982\u5b58\u5728\u4e24\u4e2a\u540c\u540d\u7684\u53ef\u6267\u884c\u7a0b\u5e8f\uff0c\u4e00\u4e2a\u5728 \/usr\/local\/bin\uff0c\u53e6\u4e00\u4e2a\u5728 \/usr\/bin\uff0c\u5219\u4f1a\u6267\u884c\u73af\u5883\u53d8\u91cf\u4e2d\u6700\u5148\u5217\u51fa\u7684\u90a3\u4e2a\uff0c\u5e76\u5ffd\u7565\u53e6\u5916\u4e00\u4e2a\u3002
\n\u5982\u679c\u6211\u4eec\u81ea\u5df1\u7f16\u5199\u7684\u811a\u672c\u6ca1\u6709\u653e\u5728 $PATH \u53d8\u91cf\u5217\u51fa\u76ee\u5f55\u4e2d\u7684\u4efb\u4f55\u4e00\u4e2a\uff0c\u5219\u9700\u8981\u8f93\u5165.\/filename \u6765\u6267\u884c\u5b83\u3002\u800c\u5982\u679c\u5b58\u50a8\u5728 $PATH \u53d8\u91cf\u4e2d\u7684\u4efb\u610f\u4e00\u4e2a\u76ee\u5f55\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u50cf\u8fd0\u884c\u5176\u4ed6\u547d\u4ee4\u4e00\u6837\u6765\u8fd0\u884c\u4e4b\u524d\u7f16\u5199\u7684\u811a\u672c\u4e86\u3002<\/p>\n
# pwd\r\n# .\/myscript.sh\r\n# cp myscript.sh ..\/bin\r\n# cd ..\/bin\r\n# pwd\r\n# myscript.sh\r\n<\/pre>\n
<\/p>\n
\u6267\u884c\u811a\u672c<\/strong><\/div>\n
if \u6761\u4ef6\u8bed\u53e5<\/strong><\/span><\/div>\n
\u65e0\u8bba\u4f55\u65f6\uff0c\u5f53\u4f60\u9700\u8981\u5728\u811a\u672c\u4e2d\u6839\u636e\u67d0\u4e2a\u547d\u4ee4\u7684\u8fd0\u884c\u7ed3\u679c\u6765\u91c7\u53d6\u76f8\u5e94\u52a8\u4f5c\u65f6\uff0c\u4f60\u5e94\u8be5\u4f7f\u7528 if\u7ed3\u6784\u6765\u5b9a\u4e49\u6761\u4ef6\u3002\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
if CONDITION; then\r\n COMMANDS;\r\nelse\r\n OTHER-COMMANDS\r\nfi\r\n<\/pre>\n
\u5176\u4e2d\uff0cCONDITION \u53ef\u4ee5\u662f\u5982\u4e0b\u60c5\u5f62\u7684\u4efb\u610f\u4e00\u9879 (\u4ec5\u5217\u51fa\u5e38\u7528\u7684)\uff0c\u5e76\u4e14\u8fbe\u5230\u4ee5\u4e0b\u6761\u4ef6\u65f6\u8fd4\u56de
\ntrue\uff1a<\/p>\n
\n
[ -a file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\u3002<\/li>\n
[ -d file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u4e14\u662f\u4e00\u4e2a\u76ee\u5f55\u3002<\/li>\n
[ -f file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u4e14\u662f\u4e00\u4e2a\u666e\u901a\u6587\u4ef6\u3002<\/li>\n
[ -u file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u8bbe\u7f6e\u4e86 SUID \u6743\u9650\u4f4d\u3002<\/li>\n
[ -g file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u8bbe\u7f6e\u4e86 SGID \u6743\u9650\u4f4d\u3002<\/li>\n
[ -k file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u8bbe\u7f6e\u4e86\u201c\u9ecf\u8fde (Sticky)\u201d\u4f4d\u3002<\/li>\n
[ -r file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u4e14\u6587\u4ef6\u53ef\u8bfb\u3002<\/li>\n
[ -s file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u4e14\u6587\u4ef6\u4e0d\u4e3a\u7a7a\u3002<\/li>\n
[ -w file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u4e14\u6587\u4ef6\u53ef\u5199\u5165\u3002<\/li>\n
[ -x file ]<\/code> \u2192 \u6307\u5b9a\u6587\u4ef6\u5b58\u5728\uff0c\u5e76\u4e14\u53ef\u6267\u884c\u3002<\/li>\n
[ string1 = string2 ]<\/code> \u2192 \u5b57\u7b26\u4e32\u76f8\u540c\u3002<\/li>\n
[ string1 != string2 ]<\/code> \u2192 \u5b57\u7b26\u4e32\u4e0d\u76f8\u540c\u3002<\/li>\n<\/ul>\n[ int1 op int2 ] \u4e3a\u524d\u8ff0\u5217\u8868\u4e2d\u7684\u4e00\u90e8\u5206 (\u4f8b\u5982\uff1a -eq \u2013> int1 \u4e0e int2 \u76f8\u540c\u65f6\u8fd4\u56detrue) \uff0c\u5176\u4e2d\u6bd4\u8f83\u9879\u4e5f\u53ef\u4ee5\u662f\u4e00\u4e2a\u5217\u8868\u5b50\u9879\uff0c \u5176\u4e2d op \u4e3a\u4ee5\u4e0b\u6bd4\u8f83\u64cd\u4f5c\u7b26\u3002<\/p>\n \n-eq<\/code> \u2013> int1 \u7b49\u4e8e int2 \u65f6\u8fd4\u56de true\u3002<\/li>\n -ne<\/code> \u2013> int1 \u4e0d\u7b49\u4e8e int2 \u65f6\u8fd4\u56de true\u3002<\/li>\n -lt<\/code> \u2013> int1 \u5c0f\u4e8e int2 \u65f6\u8fd4\u56de true\u3002<\/li>\n -le<\/code> \u2013> int1 \u5c0f\u4e8e\u6216\u7b49\u4e8e int2 \u65f6\u8fd4\u56de true\u3002<\/li>\n -gt<\/code> \u2013> int1 \u5927\u4e8e int2 \u65f6\u8fd4\u56de true\u3002<\/li>\n -ge<\/code> \u2013> int1 \u5927\u4e8e\u6216\u7b49\u4e8e int2 \u65f6\u8fd4\u56de true\u3002<\/li>\n<\/ul>\nfor \u5faa\u73af\u8bed\u53e5<\/strong><\/span><\/div>\n\u5faa\u73af\u8bed\u53e5\u53ef\u4ee5\u5728\u67d0\u4e2a\u6761\u4ef6\u4e0b\u91cd\u590d\u6267\u884c\u67d0\u4e2a\u547d\u4ee4\u3002\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n for item in SEQUENCE; do\r\n COMMANDS;\r\ndone\r\n<\/pre>\n\u5176\u4e2d\uff0citem \u4e3a\u6bcf\u6b21\u6267\u884c COMMANDS \u65f6\uff0c\u5728 SEQUENCE \u4e2d\u5339\u914d\u5230\u7684\u503c\u3002<\/p>\n While \u5faa\u73af\u8bed\u53e5<\/strong><\/span><\/div>\n\u8be5\u5faa\u73af\u7ed3\u6784\u4f1a\u4e00\u76f4\u6267\u884c\u91cd\u590d\u7684\u547d\u4ee4\uff0c\u76f4\u5230\u63a7\u5236\u547d\u4ee4\uff08EVALUATION_COMMAND\uff09\u6267\u884c\u7684\u9000\u51fa\u72b6\u6001\u503c\u7b49\u4e8e 0 \u65f6 (\u5373\u6267\u884c\u6210\u529f) \u505c\u6b62\u3002\u57fa\u672c\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n while EVALUATION_COMMAND; do\r\n EXECUTE_COMMANDS;\r\ndone\r\n<\/pre>\n\u5176\u4e2d\uff0cEVALUATION_COMMAND \u53ef\u4ee5\u662f\u4efb\u4f55\u80fd\u591f\u8fd4\u56de\u6210\u529f (0) \u6216\u5931\u8d25 (0 \u4ee5\u5916\u7684\u503c) \u7684\u9000\u51fa\u72b6\u6001\u503c\u7684\u547d\u4ee4\uff0cEXECUTE_COMMANDS \u5219\u53ef\u4ee5\u662f\u4efb\u4f55\u7684\u7a0b\u5e8f\u3001\u811a\u672c\u6216\u8005 shell \u7ed3\u6784\u4f53\uff0c\u5305\u62ec\u5176\u4ed6\u7684\u5d4c\u5957\u5faa\u73af\u3002<\/p>\n \u7efc\u5408\u4f7f\u7528<\/strong><\/span><\/div>\n\u6211\u4eec\u4f1a\u901a\u8fc7\u4ee5\u4e0b\u4f8b\u5b50\u6765\u6f14\u793a if \u6761\u4ef6\u8bed\u53e5\u548c for \u5faa\u73af\u8bed\u53e5\u3002 \n\u5728\u57fa\u4e8e systemd \u7684\u53d1\u884c\u7248\u4e2d\u63a2\u6d4b\u67d0\u4e2a\u670d\u52a1\u662f\u5426\u5728\u8fd0\u884c<\/strong> \n\u5148\u5efa\u7acb\u4e00\u4e2a\u6587\u4ef6\uff0c\u5217\u51fa\u6211\u4eec\u60f3\u8981\u60f3\u8981\u67e5\u770b\u7684\u670d\u52a1\u540d\u3002<\/p>\n # cat myservices.txt\r\nsshd\r\nmariadb\r\nhttpd\r\ncrond\r\nfirewalld\r\n<\/pre>\n<\/p>\n \u4f7f\u7528\u811a\u672c\u76d1\u63a7Linux\u670d\u52a1\u5668<\/strong><\/div>\n\u6211\u4eec\u7f16\u5199\u7684\u811a\u672c\u770b\u8d77\u6765\u5e94\u8be5\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n #!\/bin\/bash\r\n# This script iterates over a list of services and\r\n# is used to determine whether they are running or not.\r\nfor service in $(cat myservices.txt); do\r\n systemctl status $service | grep --quiet \"running\"\r\n if [ $? -eq 0 ]; then\r\n echo $service \"is [ACTIVE]\"\r\n else\r\n echo $service \"is [INACTIVE or NOT INSTALLED]\"\r\n fi\r\ndone\r\n<\/pre>\n<\/p>\n Linux\u670d\u52a1\u5668\u76d1\u63a7\u811a\u672c<\/strong><\/div>\n\u6211\u4eec\u6765\u89e3\u91ca\u4e00\u4e0b\u8fd9\u4e2a\u811a\u672c\u7684\u5de5\u4f5c\u6d41\u7a0b<\/strong> \n1). for \u5faa\u73af\u6bcf\u6b21\u8bfb\u53d6 myservices.txt \u6587\u4ef6\u4e2d\u7684\u4e00\u9879\u8bb0\u5f55\uff0c\u6bcf\u4e00\u9879\u7eaa\u5f55\u8868\u793a\u4e00\u4e2a\u670d\u52a1\u7684\u901a\u7528\u53d8\u91cf\u540d\u3002\u5404\u9879\u8bb0\u5f55\u7ec4\u6210\u5982\u4e0b\uff1a<\/p>\n # cat myservices.txt\r\n<\/pre>\n2). \u4ee5\u4e0a\u547d\u4ee4\u7531\u5706\u62ec\u53f7\u62ec\u7740\uff0c\u5e76\u5728\u524d\u9762\u6dfb\u52a0\u7f8e\u5143\u7b26\uff0c\u8868\u793a\u5b83\u9700\u8981\u4ece myservices.txt \u7684\u8bb0\u5f55\u5217\u8868\u4e2d\u53d6\u503c\u5e76\u4f5c\u4e3a\u53d8\u91cf\u4f20\u9012\u7ed9 for \u5faa\u73af\u3002 \n3). \u5bf9\u4e8e\u8bb0\u5f55\u5217\u8868\u4e2d\u7684\u6bcf\u4e00\u9879\u7eaa\u5f55 (\u5373\u6bcf\u4e00\u9879\u7eaa\u5f55\u7684\u670d\u52a1\u53d8\u91cf)\uff0c\u90fd\u4f1a\u6267\u884c\u4ee5\u4e0b\u52a8\u4f5c\uff1a<\/p>\n # systemctl status $service | grep --quiet \"running\"\r\n<\/pre>\n\u6b64\u65f6\uff0c\u9700\u8981\u5728\u6bcf\u4e2a\u901a\u7528\u53d8\u91cf\u540d (\u5373\u6bcf\u4e00\u9879\u7eaa\u5f55\u7684\u670d\u52a1\u53d8\u91cf) \u7684\u524d\u9762\u6dfb\u52a0\u7f8e\u5143\u7b26\uff0c\u4ee5\u8868\u660e\u5b83\u662f\u4f5c\u4e3a\u53d8\u91cf\u6765\u4f20\u9012\u7684\u3002\u5176\u8f93\u51fa\u5219\u901a\u8fc7\u7ba1\u9053\u7b26\u4f20\u7ed9 grep\u3002\u5176\u4e2d\uff0c-quiet \u9009\u9879\u7528\u4e8e\u963b\u6b62 grep \u547d\u4ee4\u5c06\u53d1\u73b0\u7684 \u201crunning\u201d \u7684\u884c\u56de\u663e\u5230\u5c4f\u5e55\u3002\u5f53 grep\u6355\u83b7\u5230 \u201crunning\u201d \u65f6\uff0c\u5219\u4f1a\u8fd4\u56de\u4e00\u4e2a\u9000\u51fa\u72b6\u6001\u7801 \u201c0\u201d (\u5728 if \u7ed3\u6784\u4f53\u8868\u793a\u4e3a $?)\uff0c\u7531\u6b64\u786e\u8ba4\u67d0\u4e2a\u670d\u52a1\u6b63\u5728\u8fd0\u884c\u4e2d\u3002 \n\u5982\u679c\u9000\u51fa\u72b6\u6001\u7801\u662f\u975e\u96f6\u503c (\u5373 systemctl status $service \u547d\u4ee4\u4e2d\u7684\u56de\u663e\u4e2d\u6ca1\u6709\u51fa\u73b0\u201crunning\u201d)\uff0c\u5219\u8868\u660e\u67d0\u4e2a\u670d\u52a1\u672a\u8fd0\u884c\u3002 \n<\/p>\n \u670d\u52a1\u76d1\u63a7\u811a\u672c<\/strong><\/div>\n\u6211\u4eec\u53ef\u4ee5\u589e\u52a0\u4e00\u6b65\uff0c\u5728\u5f00\u59cb\u5faa\u73af\u4e4b\u524d\uff0c\u5148\u786e\u8ba4 myservices.txt \u662f\u5426\u5b58\u5728\u3002<\/p>\n #!\/bin\/bash\r\n# This script iterates over a list of services and\r\n# is used to determine whether they are running or not.\r\nif [ -f myservices.txt ]; then\r\n for service in $(cat myservices.txt); do\r\n systemctl status $service | grep --quiet \"running\"\r\n if [ $? -eq 0 ]; then\r\n echo $service \"is [ACTIVE]\"\r\n else\r\n echo $service \"is [INACTIVE or NOT INSTALLED]\"\r\n fi\r\n done\r\nelse\r\n echo \"myservices.txt is missing\"\r\nfi\r\n<\/pre>\nPing \u4e00\u7cfb\u5217\u7f51\u7edc\u6216\u8005 Internet \u4e3b\u673a\u540d\u4ee5\u83b7\u53d6\u5e94\u7b54\u6570\u636e<\/strong> \n\u4f60\u53ef\u80fd\u60f3\u628a\u81ea\u5df1\u7ef4\u62a4\u7684\u4e3b\u673a\u5199\u5165\u4e00\u4e2a\u6587\u672c\u6587\u4ef6\uff0c\u5e76\u4f7f\u7528\u811a\u672c\u63a2\u6d4b\u5b83\u4eec\u662f\u5426\u80fd\u591f ping \u5f97\u901a (\u811a\u672c\u4e2d\u7684 myhosts \u53ef\u4ee5\u968f\u610f\u66ff\u6362\u4e3a\u4f60\u60f3\u8981\u7684\u540d\u79f0)\u3002 \nshell \u7684\u5185\u7f6e read \u547d\u4ee4\u5c06\u544a\u8bc9 while \u5faa\u73af\u4e00\u884c\u884c\u7684\u8bfb\u53d6 myhosts\uff0c\u5e76\u5c06\u8bfb\u53d6\u7684\u6bcf\u884c\u5185\u5bb9\u4f20\u7ed9 host \u53d8\u91cf\uff0c\u968f\u540e host \u53d8\u91cf\u4f20\u9012\u7ed9 ping \u547d\u4ee4\u3002<\/p>\n #!\/bin\/bash\r\n# This script is used to demonstrate the use of a while loop\r\nwhile read host; do\r\n ping -c 2 $host\r\ndone < myhosts\r\n<\/pre>\n<\/p>\n \u4f7f\u7528\u811a\u672c Ping \u670d\u52a1\u5668<\/strong><\/div>\n\u6269\u5c55\u9605\u8bfb:<\/p>\n \nLearn Shell Scripting: A Guide fromNewbies to System Administrator<\/li>\n 5<\/a>Shell Scripts to Learn Shell Programming<\/li>\n<\/ul>\n\u6587\u4ef6\u7cfb\u7edf\u6392\u9519<\/strong><\/span><\/div>\n\u5c3d\u7ba1 Linux \u662f\u4e00\u4e2a\u5f88\u7a33\u5b9a\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u4f46\u4ecd\u7136\u4f1a\u56e0\u4e3a\u67d0\u4e9b\u539f\u56e0\u51fa\u73b0\u5d29\u6e83\u65f6 (\u6bd4\u5982\u56e0\u4e3a\u65ad\u7535\u7b49)\uff0c\u6b63\u597d\u4f60\u6709\u4e00\u4e2a (\u6216\u8005\u66f4\u591a\u4e2a) \u6587\u4ef6\u7cfb\u7edf\u672a\u80fd\u6b63\u786e\u5378\u8f7d\uff0cLinux \u91cd\u542f\u7684\u65f6\u5019\u5c31\u4f1a\u81ea\u52a8\u68c0\u6d4b\u5176\u4e2d\u53ef\u80fd\u53d1\u751f\u7684\u9519\u8bef\u3002 \n\u6b64\u5916\uff0c\u6bcf\u6b21\u7cfb\u7edf\u6b63\u5e38\u542f\u52a8\u7684\u65f6\u5019\uff0c\u90fd\u4f1a\u5728\u6587\u4ef6\u7cfb\u7edf\u6302\u8f7d\u4e4b\u524d\u6821\u9a8c\u5b83\u4eec\u7684\u5b8c\u6574\u5ea6\u3002\u800c\u8fd9\u4e9b\u5168\u90e8\u90fd\u4f9d\u8d56\u4e8e fsck \u5de5\u5177 ( \u6587\u4ef6\u7cfb\u7edf\u6821\u9a8c \uff08 file system check \uff09 )\u3002 \n\u5982\u679c\u5bf9 fsck \u8fdb\u884c\u8bbe\u5b9a\uff0c\u5b83\u9664\u4e86\u6821\u9a8c\u6587\u4ef6\u7cfb\u7edf\u7684\u5b8c\u6574\u6027\u4e4b\u5916\uff0c\u8fd8\u53ef\u4ee5\u5c1d\u8bd5\u4fee\u590d\u9519\u8bef\u3002fsck \u80fd\u5426\u6210\u529f\u4fee\u590d\u9519\u8bef\uff0c\u53d6\u51b3\u4e8e\u6587\u4ef6\u7cfb\u7edf\u7684\u635f\u4f24\u7a0b\u5ea6\uff1b\u5982\u679c\u53ef\u4ee5\u4fee\u590d\uff0c\u88ab\u635f\u574f\u90e8\u5206\u7684\u6587\u4ef6\u4f1a\u6062\u590d\u5230\u4f4d\u4e8e\u6bcf\u4e2a\u6587\u4ef6\u7cfb\u7edf\u6839\u76ee\u5f55\u7684 lost+found\u3002 \n\u6700\u540e\u4f46\u540c\u6837\u91cd\u8981\u7684\u662f\uff0c\u6211\u4eec\u5fc5\u987b\u6ce8\u610f\uff0c\u5982\u679c\u62d4\u6389\u7cfb\u7edf\u6b63\u5728\u5199\u5165\u6570\u636e\u7684 USB \u8bbe\u5907\u540c\u6837\u4f1a\u53d1\u751f\u9519\u8bef\uff0c\u751a\u81f3\u53ef\u80fd\u53d1\u751f\u786c\u4ef6\u635f\u574f\u3002 \nfsck \u7684\u57fa\u672c\u7528\u5982\u4e0b\uff1a<\/p>\n# fsck [options] filesystem\r\n<\/pre>\n\u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\u9519\u8bef\u5e76\u5c1d\u8bd5\u81ea\u52a8\u4fee\u590d<\/strong> \n\u60f3\u8981\u4f7f\u7528 fsck \u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\uff0c\u6211\u4eec\u9700\u8981\u9996\u5148\u5378\u8f7d\u6587\u4ef6\u7cfb\u7edf\u3002<\/p>\n# mount | grep sdg1\r\n# umount \/mnt\r\n# fsck -y \/dev\/sdg1\r\n<\/pre>\n<\/p>\n\u68c0\u67e5\u6587\u4ef6\u7cfb\u7edf\u9519\u8bef<\/strong><\/div>\n\u9664\u4e86 -y \u9009\u9879\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528 -a \u9009\u9879\u6765\u81ea\u52a8\u4fee\u590d\u6587\u4ef6\u7cfb\u7edf\u9519\u8bef\uff0c\u800c\u4e0d\u5fc5\u505a\u51fa\u4ea4\u4e92\u5f0f\u5e94\u7b54\uff0c\u5e76\u5728\u6587\u4ef6\u7cfb\u7edf\u770b\u8d77\u6765 \u201c\u5e72\u51c0\u201d \u5378\u8f7d\u7684\u60c5\u51b5\u4e0b\u5f3a\u5236\u6821\u9a8c\u3002<\/p>\n# fsck -af \/dev\/sdg1\r\n<\/pre>\n\u5982\u679c\u53ea\u662f\u8981\u627e\u51fa\u4ec0\u4e48\u5730\u65b9\u53d1\u751f\u4e86\u9519\u8bef (\u4e0d\u7528\u5728\u68c0\u6d4b\u5230\u9519\u8bef\u7684\u65f6\u5019\u4fee\u590d)\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 -n \u9009\u9879\uff0c\u8fd9\u6837\u53ea\u4f1a\u5c06\u6587\u4ef6\u7cfb\u7edf\u9519\u8bef\u8f93\u51fa\u5230\u6807\u51c6\u8f93\u51fa\u8bbe\u5907\u4e0a\u3002<\/p>\n# fsck -n \/dev\/sdg1\r\n<\/pre>\n\u6839\u636e fsck \u8f93\u51fa\u7684\u9519\u8bef\u4fe1\u606f\uff0c\u6211\u4eec\u53ef\u4ee5\u77e5\u9053\u662f\u5426\u53ef\u4ee5\u81ea\u5df1\u4fee\u590d\u6216\u8005\u9700\u8981\u5c06\u95ee\u9898\u63d0\u4ea4\u7ed9\u5de5\u7a0b\u5e08\u56e2\u961f\u6765\u505a\u8be6\u7ec6\u7684\u786c\u4ef6\u6821\u9a8c\u3002<\/p>\n\u603b\u7ed3<\/strong><\/span><\/div>\n\u81f3\u6b64\uff0c\u7cfb\u5217\u6559\u7a0b\u7684\u7b2c\u5341\u8bb2\u5c31\u5168\u90e8\u7ed3\u675f\u4e86\uff0c\u5168\u7cfb\u5217\u6559\u7a0b\u6db5\u76d6\u4e86\u901a\u8fc7 LFCS \u6d4b\u8bd5\u6240\u9700\u7684\u57fa\u7840\u5185\u5bb9\u3002 \n\u4f46\u663e\u800c\u6613\u89c1\u7684\uff0c\u672c\u7cfb\u5217\u7684\u5341\u8bb2\u5e76\u4e0d\u8db3\u4ee5\u5728\u5355\u4e2a\u4e3b\u9898\u65b9\u9762\u505a\u5230\u5168\u9762\u63cf\u8ff0\uff0c\u6211\u4eec\u5e0c\u671b\u8fd9\u4e00\u7cfb\u5217\u6559\u7a0b\u53ef\u4ee5\u6210\u4e3a\u4f60\u5b66\u4e60\u7684\u57fa\u7840\u7d20\u6750\uff0c\u5e76\u4e00\u76f4\u4fdd\u6301\u5b66\u4e60\u7684\u70ed\u60c5\uff08LCTT \u8bd1\u6ce8\uff1a\u8fd8\u6709\u540e\u7ee7\u8865\u5145\u7684\u51e0\u7bc7\uff09\u3002 \n\u6211\u4eec\u6b22\u8fce\u4f60\u63d0\u51fa\u4efb\u4f55\u95ee\u9898\u6216\u8005\u5efa\u8bae\uff0c\u6240\u4ee5\u4f60\u53ef\u4ee5\u6beb\u4e0d\u72b9\u8c6b\u7684\u901a\u8fc7\u4ee5\u4e0b\u94fe\u63a5\u8054\u7cfb\u5230\u6211\u4eec\uff1a \u6210\u4e3a\u4e00\u4e2a Linux \u8ba4\u8bc1\u7cfb\u7edf\u5de5\u7a0b\u5e08 \u3002<\/p>\n \n\n\u539f\u6587\u6765\u81ea\uff1ahttp:\/\/www.tecmint.com\/linux-basic-shell-scripting-and-linux-filesystem-troubleshooting\/<\/a><\/p>\n \u672c\u6587\u5730\u5740\uff1ahttp:\/\/lrxjmw.cn\/shell_file_repair.html<\/a> \u7f16\u8f91\u5458\uff1a\u9b4f\u4f1f\uff0c\u5ba1\u6838\u5458\uff1a\u6768\u9e4f\u98de<\/span><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":" Linux \u57fa\u91d1\u4f1a\u53d1\u8d77\u4e86 LFCS \u8ba4\u8bc1 (Linux \u57fa\u91d1\u4f1a\u8ba4\u8bc1\u7cfb\u7edf\u7ba1\u7406\u5458\uff08Linux Foundation Certified Sysadmin\uff09)\uff0c\u8fd9\u662f\u4e00\u4e2a\u5168\u65b0\u7684\u8ba4\u8bc1\u4f53\u7cfb\uff0c\u65e8\u5728\u8ba9\u4e16\u754c\u5404\u5730\u7684\u4eba\u80fd\u591f\u53c2\u4e0e\u5230\u4e2d\u7b49\u6c34\u5e73\u7684 Linux \u7cfb\u7edf\u7684\u57fa\u672c\u7ba1\u7406\u64cd\u4f5c\u7684\u8ba4\u8bc1\u8003\u8bd5\u4e2d\u53bb\uff0c\u8fd9\u9879\u8ba4\u8bc1\u5305\u62ec\uff1a\u7ef4\u62a4\u6b63\u5728\u8fd0\u884c\u7684\u7cfb\u7edf\u548c\u670d\u52a1\u7684\u80fd\u529b\u3001\u5168\u9762\u76d1\u63a7\u548c\u5206\u6790\u7684\u80fd\u529b\u4ee5\u53ca\u4f55\u65f6\u5411\u4e0a\u6e38\u56e2\u961f\u8bf7\u6c42\u652f\u6301\u7684\u51b3\u7b56\u80fd\u529b\u3002<\/p>\n","protected":false},"author":63,"featured_media":22544,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21],"tags":[],"class_list":["post-20834","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/20834","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/users\/63"}],"replies":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/comments?post=20834"}],"version-history":[{"count":26,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/20834\/revisions"}],"predecessor-version":[{"id":37230,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/posts\/20834\/revisions\/37230"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media\/22544"}],"wp:attachment":[{"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/media?parent=20834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/categories?post=20834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lrxjmw.cn\/wp-json\/wp\/v2\/tags?post=20834"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}