shell\u811a\u672c\u4e2d\u7684\u9009\u9879\uff0c\u53ef\u4ee5\u8ba9\u7528\u6237\u4e30\u5bcc\u5f88\u591a\u64cd\u4f5c\uff1a<\/p>\n
\u5176\u4e2d\uff0c\u5e38\u7528\u7684\u5173\u952e\u8bcd\u6709\uff1agetopts OPTARG OPTIND<\/p>\n
getopts\uff1a\u53ef\u4ee5\u83b7\u5f97\u811a\u672c\u540e\u9762\u7684\u9009\u9879\u3002\u5f15\u53f7\u4e2d\u662f\u5b9a\u4e49\u7684\u9009\u9879\uff0c\u53ef\u4ee5\u6709\u591a\u4e2a\u3002<\/p>\n
“:d”: \u7b2c\u4e00\u4e2a\u5192\u53f7\u8868\u793a\u5982\u679c\u6709\u9519\u8bef\u7684\u65f6\u5019\u4e0d\u63d0\u793a<\/p>\n
“:d:”: \u7b2c\u4e8c\u4e2a\u5192\u53f7\u8868\u793a-d\u9009\u9879\u540e\u9762\u5fc5\u987b\u8981\u6709\u53c2\u6570\uff0c\u7528$OPTARG\u53ef\u4ee5\u8c03\u51fa\u8fd9\u4e2a\u53c2\u6570<\/p>\n
“:b:d:”: \u591a\u4e2a\u9009\u9879\u4e5f\u53ef\u4ee5\uff0c\u7528case\u6765\u8c03\u51fa\u8fd9\u4e2a\u53c2\u6570\u5c31\u53ef\u4ee5\u4e86<\/p>\n
while getopts \":b:d:\" OPT; do\r\n case $OPT in\r\n b)\r\n echo \"The option is b.\"\r\n echo \"The argument is ${OPTARG}.\"\r\n ;;\r\n d)\r\n echo \"The option is d.\"\r\n echo \"The argument is ${OPTARG}.\"\r\n ;;\r\n \\?)\r\n echo \"Wrong option\"\r\n esac\r\ndone\r\necho $OPTIND \r\n\r\n[root@Master ~]# .\/ab.sh -b \"option b\" -d \"option d\"\r\nThe option is b.\r\nThe argument is option b.\r\nThe option is d.\r\nThe argument is option d.\r\n5\r\n<\/code><\/pre>\n$OPTIND\u662f\u6240\u6709\u53c2\u6570\u7684\u603b\u548c\uff0c\u5728\u63a5\u4e0b\u6765\u7684\u811a\u672c\u4e2d\u4f1a\u7528\u5230\u3002<\/p>\n
\u8fd9\u65f6\u5019\uff0c\u4e30\u5bcc\u4e00\u4e0b\u4ee5\u524d\u7684shabang\u811a\u672c\uff1a\u6dfb\u52a0Discription\u4fe1\u606f\u8fdb\u811a\u672c<\/p>\n
#!\/bin\/bash\r\n#\r\n# Date: 2018-01-09\r\n# Script Name: shabang.sh\r\n# Author: Liemer_Lius\r\nif [ $# -lt 1 ]; then\r\necho \"One option should be defined.\"\r\nexit 3\r\nfi\r\nwhile getopts \":d:\" SWITCH; do\r\ncase $SWITCH in\r\nd)\r\nDESC=$OPTARG;;\r\n\\?)\r\necho \"Usage: ...\"\r\nesac\r\ndone\r\nshift $[$OPTIND-1]\r\nif ! grep \"[^[:space:]]\" $1 &>\/dev\/null; then\r\ncat > $1 << EOF\r\n#!\/bin\/bash\r\n\r\n# Discription: $DESC\r\n# Author: Lius\r\n# Name: `basename $1`\r\n# Version: 0.0.1\r\n# Datetime: `date \"+%F %T\"`\r\n\r\nEOF\r\nfi\r\n\r\nvim + $1\r\nuntil bash -n $1; do\r\nread -p \"Syntax error, q|quit for editing: \" OPT\r\ncase $OPT in\r\nq|quit)\r\necho \"Quit!\"\r\nexit 5\r\n;;\r\n*)\r\n\r\nvim + $1\r\n;;\r\nesac\r\ndone\r\n\r\nchmod +x $1<\/code><\/pre>\n <\/p>\n
\u8f6c\u8f7d\u8bf7\u6ce8\u660e\uff1aliutianfeng.com<\/a> » shell\u811a\u672c\u4e2d\u7684\u9009\u9879\u4f7f\u7528<\/a><\/p>","protected":false},"excerpt":{"rendered":"shell\u811a\u672c\u4e2d\u7684\u9009\u9879\uff0c\u53ef\u4ee5\u8ba9\u7528\u6237\u4e30\u5bcc\u5f88\u591a\u64cd\u4f5c\uff1a \u5176\u4e2d\uff0c\u5e38\u7528\u7684\u5173\u952e\u8bcd\u6709\uff1agetopts OPTARG OPTI […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[31],"tags":[],"_links":{"self":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/380"}],"collection":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=380"}],"version-history":[{"count":4,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/380\/revisions"}],"predecessor-version":[{"id":384,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=\/wp\/v2\/posts\/380\/revisions\/384"}],"wp:attachment":[{"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=380"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=380"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.liutianfeng.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=380"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}