{"id":386,"date":"2021-07-28T16:20:44","date_gmt":"2021-07-28T08:20:44","guid":{"rendered":"http:\/\/egonlin.com\/?p=386"},"modified":"2024-05-05T15:20:59","modified_gmt":"2024-05-05T07:20:59","slug":"%e5%8f%98%e9%87%8f","status":"publish","type":"post","link":"https:\/\/egonlin.com\/?p=386","title":{"rendered":"\u53d8\u91cf"},"content":{"rendered":"

\u53d8\u91cf<\/h1>\n

\u4e00 \u53d8\u91cf\u4ecb\u7ecd<\/h2>\n

\u4ec0\u4e48\u662f\u53d8\u91cf\uff1f<\/p>\n

\u200b \u91cf\u6307\u7684\u662f\u8bb0\u5f55\u4e8b\u7269\u7684\u72b6\u6001<\/p>\n

\u200b \u53d8\u6307\u7684\u662f\u4e8b\u7269\u7684\u72b6\u6001\u662f\u53ef\u4ee5\u53d1\u751f\u53d8\u5316\u7684<\/p>\n

\u200b \u53d8\u91cf\u672c\u8d28\u5c31\u662f\u4e00\u79cd\u6570\u636e\u5b58\u53d6\u7684\u673a\u5236\uff0c\u53d8\u91cf\u7684\u6570\u636e\u90fd\u662f\u5b58\u653e\u4e8e\u5185\u5b58\u4e2d\u7684<\/p>\n

\u4e3a\u4f55\u8981\u6709\u53d8\u91cf\uff1f<\/p>\n

\u200b \u7a0b\u5e8f\u8fd0\u884c\u7684\u672c\u8d28\u5c31\u662f\u4e00\u7cfb\u5217\u72b6\u6001\u7684\u53d8\u5316\uff0c<\/p>\n

\u7a0b\u5e8f=\u6570\u636e+\u529f\u80fd\uff0c\r\n\u7a0b\u5e8f\u6267\u884c\u7684\u672c\u8d28\u5c31\u662f\u4e00\u7cfb\u5217\u72b6\u6001\u7684\u53d8\u5316\uff0c\u53d8\u662f\u7a0b\u5e8f\u6267\u884c\u7684\u76f4\u63a5\u4f53\u73b0\uff0c\u6240\u4ee5\u6211\u4eec\u9700\u8981\u6709\u4e00\u79cd\u673a\u5236\u80fd\u591f\u53cd\u6620\u6216\u8005\u8bf4\u662f\u4fdd\u5b58\u4e0b\u6765\u7a0b\u5e8f\u6267\u884c\u65f6\u72b6\u6001\u4ee5\u53ca\u72b6\u6001\u7684\u53d8\u5316\u3002\r\n# \u6bd4\u5982\uff1a\r\n    \u82f1\u96c4\u7684\u7b49\u7ea7\u4e3a1\uff0c\u6253\u602a\u5347\u7ea7(\u53d8)\u4e3a10\r\n    \u50f5\u5c38\u7684\u5b58\u6d3b\u72b6\u6001True\uff0c\u88ab\u690d\u7269\u6253\u6b7b\u4e86\uff0c\u4e8e\u662f\u53d8\u4e3aFalse\r\n    \u4eba\u7684\u540d\u5b57\u4e3aegon\uff0c\u4e5f\u53ef\u4ee5\u4fee\u6539\u4e3aEgon <\/code><\/pre>\n
\u4e8c \u53d8\u91cf\u7684\u4f7f\u7528<\/h2>\n
2.1 \u5148\u5b9a\u4e49\u3001\u540e\u5f15\u7528<\/h3>\n
\u5148\u5b9a\u4e49<\/p>\n
# 1\u3001\u8bed\u6cd5\uff1a\u53d8\u91cf\u540d=\u503c\r\n# 2\u3001\u6ce8\u610f\uff1a\u7b49\u53f7\u5de6\u53f3\u4e24\u8fb9\u4e0d\u80fd\u6709\u7a7a\u683c\uff01\uff01\uff01\r\n# 3\u3001\u4f8b\u5982\uff1a\r\n[root@localhost shell]# name=\"egon\"<\/code><\/pre>\n
\u540e\u5f15\u7528<\/p>\n
[root@localhost shell]# ip=\"192.168.11.10\"\r\n[root@localhost shell]# echo $ip\r\n192.168.11.10\r\n\r\n\u6ce8\u610f\uff1a\u5982\u679c\u662f\u6253\u5370\u767e\u5206\u6bd4\uff0c\u5efa\u8bae\u4f7f\u7528${\u53d8\u91cf\u540d}%\r\n[root@localhost shell]# percent=33\r\n[root@localhost shell]# echo ${percent}%\r\n33%<\/code><\/pre>\n
2.2 \u5220\u9664\u53d8\u91cf<\/h3>\n
[root@localhost shell]# x=111\r\n[root@localhost shell]# unset x\r\n[root@localhost shell]# echo $x\r\n\r\n[root@localhost shell]# <\/code><\/pre>\n
\u4e09 \u53d8\u91cf\u7684\u4e09\u5927\u7ec4\u6210\u90e8\u5206<\/h2>\n
\u57fa\u4e8e\u4e0a\u4e00\u5c0f\u8282\u6211\u4eec\u5f97\u77e5\uff0c\u5b9a\u4e49\u4e00\u4e2a\u53d8\u91cf\u7531\u4e09\u5927\u90e8\u5206\u7ec4\u6210<\/p>\n
    \n
  • 1\u3001\u53d8\u91cf\u540d\uff1a\u7528\u6765\u8bbf\u95ee\u5230\u53d8\u91cf\u503c\u7684<\/li>\n
  • 2\u3001\u8d4b\u503c\u7b26\u53f7\uff1a\u5c06\u53d8\u91cf\u503c\u7684\u5185\u5b58\u5730\u5740\u7ed1\u5b9a\u7ed9\u53d8\u91cf\u540d<\/li>\n
  • 3\u3001\u53d8\u91cf\u503c\uff1a\u5373\u6211\u4eec\u5b58\u7684\u6570\u636e<\/li>\n<\/ul>\n
    3.1 \u53d8\u91cf\u540d\u7684\u547d\u540d\u89c4\u8303<\/h3>\n
    \u5b9a\u4e49\u53d8\u91cf\u628a\u6570\u636e\u5b58\u5230\u5185\u5b58\u4e2d\u4e0d\u662f\u76ee\u7684\uff0c\u76ee\u7684\u662f\u4ee5\u540e\u8981\u53d6\u51fa\u6765\u7528\uff0c\u800c\u53d8\u91cf\u540d\u5c31\u662f\u7528\u6765\u53d6\u53d8\u91cf\u503c\u7684\uff0c\u800c\u53d8\u91cf\u7684\u540d\u5b57\u76f4\u63a5\u8868\u660e\u4e86\u6240\u5b58\u503c\u7684\u610f\u4e49\uff0c\u53ef\u89c1\u53d8\u91cf\u540d\u7684\u547d\u540d\u975e\u5e38\u91cd\u8981<\/p>\n
    # \u53d8\u91cf\u540d\u7684\u547d\u4ee4\u5e94\u8be5\u89c1\u540d\u77e5\u610f\uff0c\u540c\u65f6\u9075\u5faa\u5982\u4e0b\u89c4\u5219\r\n\u4ee5\u5b57\u6bcd\u6216\u4e0b\u5212\u7ebf\u5f00\u5934\uff0c\u5269\u4e0b\u7684\u90e8\u5206\u53ef\u4ee5\u662f\uff1a\u5b57\u6bcd\u3001\u6570\u5b57\u3001\u4e0b\u5212\u7ebf\uff0c\u6700\u597d\u9075\u5faa\u4e0b\u8ff0\u89c4\u8303\uff1a\r\n    1.\u4ee5\u5b57\u6bcd\u5f00\u5934\r\n    2.\u4f7f\u7528\u4e2d\u5212\u7ebf\u6216\u8005\u4e0b\u5212\u7ebf\u505a\u5355\u8bcd\u7684\u8fde\u63a5\r\n    3.\u540c\u7c7b\u578b\u7684\u7528\u6570\u5b57\u533a\u5206\r\n    4.\u5bf9\u4e8e\u6587\u4ef6\u540d\u7684\u547d\u540d\u6700\u597d\u5728\u672b\u5c3e\u52a0\u4e0a\u62d3\u5c55\u540d\r\n\r\n\u4f8b\u5982: sql_bak.tar.gz,log_bak.tar.bz2  \r\n    5\u3001\u4e0d\u8981\u5e26\u6709\u7a7a\u683c\u3001\uff1f\u3001*\u7b49\u7279\u6b8a\u5b57\u7b26\r\n    6\u3001\u4e0d\u80fd\u4f7f\u7528bash\u4e2d\u7684\u5173\u952e\u5b57\uff0c\u4f8b\u5982if\uff0cfor\uff0cwhile\uff0cdo\u7b49\r\n    7\u3001\u4e0d\u8981\u548c\u7cfb\u7edf\u73af\u5883\u53d8\u91cf\u51b2\u7a81<\/code><\/pre>\n
    3.2 \u53d8\u91cf\u503c\u7684\u4e09\u79cd\u6765\u6e90<\/h3>\n
    \uff081\uff09\u76f4\u63a5\u8d4b\u503c<\/strong><\/p>\n
    # 1. \u663e\u5f0f\u8d4b\u503c\uff1a\u53d8\u91cf\u540d=\u53d8\u91cf\u503c\r\n\u793a\u4f8b\uff1a\r\nip1=192.168.11.200\r\nschool=\"Shanghai Egon\"\r\ntoday1=`date +%F`\r\ntoday2=$(date +%F)\r\n\r\n# 2\u3001\u5e94\u7528\u793a\u4f8b\r\n[root@localhost ~]# url=\"www.baidu.com\"\r\n[root@localhost ~]# echo $url\r\nwww.baidu.com\r\n[root@localhost ~]# url=\"www.sina.com.cn\"\r\n[root@localhost ~]# echo $url\r\nwww.sina.com.cn<\/code><\/pre>\n
    \uff082\uff09\u4ece\u4f4d\u7f6e\u53c2\u6570\u83b7\u53d6\u53d8\u91cf\u503c<\/strong><\/p>\n
    \u4ece\u8c03\u7528\u811a\u672c\u65f6\u4f20\u5165\u7684\u4f4d\u7f6e\u53c2\u6570\u83b7\u53d6\u53d8\u91cf\u503c\uff1a.\/b.sh a1 a2 a3\r\n\u9700\u8981\u7528\u5230$n\u83b7\u53d6\u7b2cn\u4e2a\u4f4d\u7f6e\u53c2\u6570\u503c\uff0c\u8d85\u8fc710\u9700\u8981\u7528${n}\uff0c\u5982\u4e0b\r\n$0 $1 $2 $3 $4 $5 $6 $7 $8 $9 ${10}\r\n\r\n# \u793a\u4f8b\r\n[root@egon ~]# cat b.sh \r\n#!\/usr\/bin\/env bash\r\necho ${0}\r\necho $1\r\necho $2\r\necho $3\r\necho $4\r\necho $5\r\necho $6\r\necho $7\r\necho $8\r\necho $9\r\necho ${10}\r\necho ${11}\r\necho ${12}\r\n\r\n# \u8fd0\u884c\r\n[root@egon ~]# chmod +x b.sh \r\n[root@egon ~]# .\/b.sh a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 a11 a12 a13 a14 a15\r\n.\/b.sh\r\na1\r\na2\r\na3\r\na4\r\na5\r\na6\r\na7\r\na8\r\na9\r\na10\r\na11\r\na12\r\n\r\n# \u4f01\u4e1a\u4f7f\u7528\uff1a\u53ef\u4ee5\u5b9e\u73b0\u811a\u672c\u7684\u4e0d\u540c\u529f\u80fd\uff08\u670d\u52a1\u7a0b\u5e8f\u7ba1\u7406\u811a\u672c-\u542f\u52a8\u529f\u80fd \u5173\u95ed\u529f\u80fd \u91cd\u542f\u529f\u80fd\uff09\r\nserver.sh  start|stop|restart<\/code><\/pre>\n
    \uff083\uff09\u4e0e\u7528\u6237\u4ea4\u4e92\u83b7\u53d6\u503c<\/strong><\/p>\n
    \u4f55\u4e3a\u4ea4\u4e92\uff0c\u5373\u8f93\u5165\u3001\u8f93\u51fa\r\n\r\n# \u4e00\uff1aread\u63a5\u6536\u7528\u6237\u7684\u8f93\u5165\uff0c\u5373\u4ece\u952e\u76d8\u8bfb\u5165\u53d8\u91cf\u503c\r\nread \u53d8\u91cf\u540d\r\nread -p \"\u63d0\u793a\u4fe1\u606f: \"  \u53d8\u91cf\u540d\r\nread -t 5 -p \"\u63d0\u793a\u4fe1\u606f: \"  \u53d8\u91cf\u540d  # -t\u6307\u5b9a\u79d2\u6570\r\nread -n 2 \u53d8\u91cf\u540d  # -n\u8bfb\u53d6\u7684\u5b57\u7b26\u4e2a\u6570\r\n\r\n=======\u300b\u5e94\u7528\u793a\u4f8b\uff1avim first.sh\r\nback_dir1=\/var\/backup\r\nread -p \"\u8bf7\u8f93\u5165\u4f60\u7684\u5907\u4efd\u76ee\u5f55: \" back_dir2\r\necho $back_dir1\r\necho $back_dir2\r\n\r\n\u4f01\u4e1a\u4f7f\u7528\uff1a\u53ef\u4ee5\u6839\u636e\u9700\u6c42\u8c03\u6574\u53d8\u91cf\u503c\uff0c\u53ef\u4ee5\u4fbf\u4e8e\u65b0\u5458\u5de5\u5feb\u901f\u638c\u63e1\u4f01\u4e1a\u811a\u672c\u4f7f\u7528\r\n\r\n# \u4e8c\uff1a\u8f93\u51fa\r\n# 2.1 echo\u547d\u4ee4\uff0c\u8be6\u89e3\u60c5\u51b5\uff1ahttps:\/\/www.cnblogs.com\/linhaifeng\/articles\/13976349.html\r\n\r\n[root@egon ~~]# name=\"egon\"\r\n[root@egon ~~]# age=18\r\n[root@egon ~~]# echo -e \"my name is\\t$name\\nmy age is\\t$age\"\r\nmy name is  egon\r\nmy age is   19\r\n\r\n\u8fd8\u53ef\u4ee5\u8f93\u51fa\u5e26\u989c\u8272(\u4e86\u89e3\u5373\u53ef)\r\n# echo -e \"\\033[\u5b57\u80cc\u666f\u989c\u8272;\u6587\u5b57\u989c\u8272m\u5b57\u7b26\u4e32\\033[0m\"\r\n# \u4f8b\u5982\r\n# echo -e \"\\033[47;30m I love Egon\uff01 \\033[0m\"\uff0c\u5176\u4e2d47\u7684\u4f4d\u7f6e\u4ee3\u8868\u80cc\u666f\u8272, 30\u7684\u4f4d\u7f6e\u662f\u4ee3\u8868\u5b57\u4f53\u989c\u8272\r\necho -e \"\\033[31m \u7ea2\u8272\u5b57 \\033[0m\"\r\necho -e \"\\033[34m \u9ec4\u8272\u5b57 \\033[0m\"\r\necho -e \"\\033[41;33m \u7ea2\u5e95\u9ec4\u5b57 \\033[0m\"\r\necho -e \"\\033[41;37m \u7ea2\u5e95\u767d\u5b57 \\033[0m\"\r\n# \u9700\u8981\u4f7f\u7528\u53c2\u6570-e\uff0cman  echo \u53ef\u4ee5\u77e5\u9053-e\uff1aenable interpretation of backslash escapes\u3002 \r\n\r\n# 2.2 prinf\u547d\u4ee4(C\u8bed\u8a00\u98ce\u683c)\r\n%s\r\n%d\r\n%7.3f  \u6253\u5370\u6d6e\u70b9\u6570\uff0c\u603b\u5bbd\u5ea6\u4e3a7\uff0c\u5c0f\u6570\u4f4d\u4fdd\u75593\u4f4d,\u5e76\u4e14\u56db\u820d\u4e94\u5165\r\n[root@egon ~~]# name=\"egon\"\r\n[root@egon ~~]# age=18\r\n[root@egon ~~]# printf \"my name is %s my age is %s\\n\" $name $age\r\nmy name is egon my age is 18        \r\n\r\n[root@egon ~]# salary=3.3339\r\n[root@egon ~]# printf \"my name is %s my age is %7.3f\\n\" $name $salary\r\nmy name is egon my age is   3.334<\/code><\/pre>\n
    \u4e09 \u9884\u5b9a\u53d8\u91cf<\/h2>\n
    $*  \u6240\u6709\u7684\u53c2\u6570\r\n$@  \u6240\u6709\u7684\u53c2\u6570\r\n$#  \u53c2\u6570\u7684\u4e2a\u6570\r\n$$  \u5f53\u524d\u8fdb\u7a0b\u7684PID  # \u6b64\u5916\uff0c\u53ef\u4ee5\u4f7f\u7528\u53ea\u8bfb\u53d8\u91cf\u6765\u83b7\u53d6\u7236\u8fdb\u7a0b\u7684PID\uff1a$PPID\u3001\u83b7\u53d6\u6267\u884c\u811a\u672c\u7684\u7528\u6237ID\uff1a$UID\r\n$?  \u4e0a\u4e00\u4e2a\u547d\u4ee4\u7684\u8fd4\u56de\u503c 0\u8868\u793a\u6210\u529f \r\n\r\n\u793a\u4f8b1\uff1a\r\n[root@egon ~]# chmod +x b.sh \r\n[root@egon ~]# .\/b.sh a1 a2 a3 a4 a5\r\na1 a2 a3 a4 a5\r\na1 a2 a3 a4 a5\r\n5\r\n18988\r\n1\r\n[root@egon ~]# cat b.sh \r\n#!\/usr\/bin\/env bash\r\necho $*\r\necho $@\r\necho $#\r\necho $$\r\n\r\nping -c1 192.168.11.10 &>\/dev\/null\r\necho $?\r\n\r\n\u793a\u4f8b2\uff1a\r\n[root@egon ~]# vim ping.sh\r\n#!\/bin\/bash                         \r\nping -c2 $1 &>\/dev\/null      \r\nif [ $? = 0 ];then                  \r\n    echo \"host $1 is ok\"      \r\nelse                                            \r\n    echo \"host $1 is fail\"    \r\nfi\r\n\r\n[root@egon ~]# chmod +x ping.sh\r\n[root@egon ~]# .\/ping.sh 192.168.11.10<\/code><\/pre>\n
    \u4e86\u89e3:<\/p>\n
    \u5982\u679c\u6211\u4eec\u60f3\u4ece\u547d\u4ee4\u884c\u4e2d\u83b7\u53d6\u811a\u672c\u8c03\u7528\u8005\u4f20\u5165\u7684\u53c2\u6570\u503c\uff0c\u7528$n\u53ef\u4ee5\u53d6\u5230\uff0c\u4f46\u5982\u679c\u811a\u672c\u8c03\u7528\u8005\u5728\u547d\u4ee4\u884c\u4f20\u5165\u7684\u53c2\u6570\u4e2a\u6570\u4e0d\u56fa\u5b9a\uff0c\u90a3\u4e48\u6b64\u65f6\u5c31\u9700\u8981\u7528$*\u6216$@\u6765\u83b7\u53d6\u4e86\r\n\r\n$*\u4e0e$@\u83b7\u53d6\u7684\u662f\u6240\u6709\u4f4d\u7f6e\u53c2\u6570\uff0c$0\u9664\u5916<\/code><\/pre>\n
    \u5f53\u811a\u672c\u8c03\u7528\u8005\u7684\u4f20\u53c2\u5f62\u5f0f\u5982\u4e0b\u662f<\/p>\n
    [root@localhost ~]# .\/script.sh \u547d\u4ee41 \u547d\u4ee42 \u547d\u4ee43<\/code><\/pre>\n
    \u9488\u5bf9for\u5faa\u73af\u8bed\u53e5\uff1afor i in \u5143\u7d20\uff0cfor\u5faa\u73af\u4f1a\u6309\u7167\u7a7a\u683c\u4f5c\u4e3a\u5206\u9694\u7b26\u6765\u4e00\u4e2a\u4e2a\u53d6\u5143\u7d20\uff0c\u6240\u4ee5\u6b64\u65f6$*<\/code>\u4e0e$@<\/code>\u5e76\u65e0\u533a\u522b<\/p>\n
    [root@localhost ~]# cat script.sh \r\n#!\/bin\/bash\r\n\r\nfor i in $*\r\ndo\r\n    echo $i\r\ndone\r\n\r\necho \"==================\"\r\n\r\nfor i in $@\r\ndo\r\n    echo $i\r\ndone\r\n[root@localhost ~]# \r\n[root@localhost ~]# .\/script.sh \u547d\u4ee41 \u547d\u4ee42 \u547d\u4ee43\r\n\u547d\u4ee41\r\n\u547d\u4ee42\r\n\u547d\u4ee43\r\n==================\r\n\u547d\u4ee41\r\n\u547d\u4ee42\r\n\u547d\u4ee43<\/code><\/pre>\n
    \u5f53\u811a\u672c\u8c03\u7528\u8005\u7684\u4f20\u53c2\u5f62\u5f0f\u5982\u4e0b\u65f6<\/p>\n
    [root@localhost ~]# .\/script.sh \u547d\u4ee41 \u547d\u4ee42 \"\u547d\u4ee43 \u53c2\u6570\"<\/code><\/pre>\n
    \u9488\u5bf9for\u5faa\u73af\u8bed\u53e5\uff1afor i in \u5143\u7d20\uff0cfor\u5faa\u73af\u4f1a\u6309\u7167\u7a7a\u683c\u4f5c\u4e3a\u5206\u9694\u7b26\u6765\u4e00\u4e2a\u4e2a\u53d6\u5143\u7d20\uff0c\u6240\u4ee5\u6b64\u65f6$*<\/code>\u4e0e$@<\/code>\u5982\u679c\u4e0d\u52a0\u5f15\u53f7\uff0c\u7b2c\u4e09\u4e2a\u547d\u4ee4\uff1a”\u547d\u4ee43 \u53c2\u6570”\uff0c\u4e3a\u88ab\u4ee5\u7a7a\u683c\u4e3a\u5206\u9694\u7b26\u8bc6\u522b\u6210\u4e24\u90e8\u5206<\/p>\n
    [root@localhost ~]# cat script.sh \r\n#!\/bin\/bash\r\n\r\nfor i in $*\r\ndo\r\n    echo $i\r\ndone\r\n\r\necho \"==================\"\r\n\r\nfor i in $@\r\ndo\r\n    echo $i\r\ndone\r\n[root@localhost ~]# \r\n[root@localhost ~]# .\/script.sh \u547d\u4ee41 \u547d\u4ee42 \"\u547d\u4ee43 \u53c2\u6570\"\r\n\u547d\u4ee41\r\n\u547d\u4ee42\r\n\u547d\u4ee43\r\n\u53c2\u6570\r\n==================\r\n\u547d\u4ee41\r\n\u547d\u4ee42\r\n\u547d\u4ee43\r\n\u53c2\u6570<\/code><\/pre>\n
    \u6240\u4ee5\u9700\u8981\u4e3a$*<\/code>\u4e0e$@<\/code>\u52a0\u4e0a\u5f15\u53f7<\/p>\n
    [root@localhost ~]# cat script.sh \r\n#!\/bin\/bash\r\n\r\nfor i in \"$*\"\r\ndo\r\n    echo $i\r\ndone\r\n\r\necho \"==================\"\r\n\r\nfor i in \"$@\"\r\ndo\r\n    echo $i\r\ndone\r\n[root@localhost ~]# .\/script.sh \u547d\u4ee41 \u547d\u4ee42 \"\u547d\u4ee43 \u53c2\u6570\"\r\n\u547d\u4ee41 \u547d\u4ee42 \u547d\u4ee43 \u53c2\u6570\r\n==================\r\n\u547d\u4ee41\r\n\u547d\u4ee42\r\n\u547d\u4ee43 \u53c2\u6570\r\n[root@localhost ~]# <\/code><\/pre>\n
    \u4f46\u6b64\u65f6\u4e3a$*<\/code>\u5c31\u4f1a\u628a\u6240\u6709\u4f4d\u7f6e\u53c2\u6570\u8bc6\u522b\u6210\u4e00\u4e2a\u6574\u4f53\uff0c\u6240\u4ee5\u603b\u7ed3\u5982\u4e0b\uff1a<\/p>\n
    \u5f53\u811a\u672c\u8c03\u7528\u8005\u7684\u4f20\u53c2\u5f62\u5f0f\u5982\u4e0b\u65f6\r\n[root@localhost ~]# .\/script.sh \u547d\u4ee41 \u547d\u4ee42 \"\u547d\u4ee43 \u53c2\u6570\"\r\n\r\n\u9700\u8981\u4f7f\u7528\"$@\"\u6765\u5206\u522b\u83b7\u53d6\u4e00\u4e2a\u4e2a\u5b8c\u6574\u7684\u547d\u4ee4\r\nfor i in \"$@\"\r\ndo\r\n    echo $i\r\ndone\r\n\r\n\u5176\u4f59\u60c5\u51b5$*\u4e0e$@\u5b8c\u5168\u4e00\u81f4<\/code><\/pre>\n
    \u56db \u5e38\u91cf<\/h2>\n
    \u76f8\u5bf9\u4e8e\u53d8\u91cf\uff0c\u5e38\u91cf\u5c31\u662f\u4e0d\u53ef\u4ee5\u88ab\u6539\u53d8\u7684\u91cf\uff0c\u5373\u53ea\u80fd\u8bfb\u4e0d\u80fd\u6539\uff0c\u6240\u4ee5\u53c8\u79f0\u4e4b\u4e3a\u53ea\u8bfb\u53d8\u91cf<\/p>\n
    \u4f7f\u7528 readonly \u547d\u4ee4\u53ef\u4ee5\u5c06\u53d8\u91cf\u5b9a\u4e49\u4e3a\u53ea\u8bfb\u53d8\u91cf\uff0c\u53ea\u8bfb\u53d8\u91cf\u7684\u503c\u4e0d\u80fd\u88ab\u6539\u53d8\u3002\r\n\r\n[root@egon ~]# x=111\r\n[root@egon ~]# readonly x\r\n[root@egon ~]# x=666\r\n-bash: x: \u53ea\u8bfb\u53d8\u91cf<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
    \u53d8\u91cf \u4e00 \u53d8\u91cf\u4ecb\u7ecd \u4ec0\u4e48\u662f\u53d8\u91cf\uff1f \u200b \u91cf\u6307\u7684\u662f\u8bb0\u5f55\u4e8b\u7269\u7684\u72b6\u6001 \u200b \u53d8\u6307\u7684\u662f\u4e8b\u7269\u7684\u72b6\u6001\u662f\u53ef\u4ee5\u53d1\u751f\u53d8\u5316\u7684 \u200b \u53d8\u91cf […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[63],"tags":[21,19,58,75,22,20],"_links":{"self":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/386"}],"collection":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=386"}],"version-history":[{"count":1,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/386\/revisions"}],"predecessor-version":[{"id":10821,"href":"https:\/\/egonlin.com\/index.php?rest_route=\/wp\/v2\/posts\/386\/revisions\/10821"}],"wp:attachment":[{"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=386"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=386"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/egonlin.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=386"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}