{"id":52227,"date":"2024-12-03T16:47:39","date_gmt":"2024-12-03T08:47:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52227\/"},"modified":"2024-12-03T16:47:39","modified_gmt":"2024-12-03T08:47:39","slug":"linux-shell%e4%b8%adsh%e5%92%8cbash%e7%9a%84%e5%8c%ba%e5%88%ab%e6%98%af%e4%bb%80%e4%b9%88","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52227\/","title":{"rendered":"Linux SHELL\u4e2dsh\u548cbash\u7684\u533a\u522b\u662f\u4ec0\u4e48"},"content":{"rendered":"

<\/b> <\/p>\n

Linux SHELL\u4e2dsh\u548cbash\u7684\u533a\u522b\u662f\u4ec0\u4e48<\/h1>\n

\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300aLinux SHELL\u4e2dsh\u548cbash\u7684\u533a\u522b\u662f\u4ec0\u4e48\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n

\u4ec0\u4e48\u662fSHELL\uff1f<\/strong>
\u3000\u3000shell\u7684\u4e2d\u6587\u610f\u601d\u5c31\u662f\u8d1d\u58f3\uff0c\u5176\u5b9e\u6bd4\u8f83\u7c7b\u4f3c\u4e8e\u6211\u4eec\u5185\u6838\u7684\u58f3\u3002\u7b80\u800c\u8a00\u4e4b\u5c31\u662f\u53ea\u8981\u80fd\u591f\u64cd\u4f5c\u5e94\u7528\u7a0b\u5e8f\u7684\u63a5\u53e3\u90fd\u80fd\u591f\u79f0\u4e3aSHELL\u3002\u72ed\u4e49\u7684shell\u6307\u7684\u662f\u547d\u4ee4\u884c\u65b9\u9762\u7684\u8f6f\u4ef6\uff0c\u5e7f\u4e49\u7684SHELL\u5219\u5305\u62ec\u56fe\u5f62\u754c\u9762\u3002<\/p>\n

SHELL\u7684\u7248\u672c<\/strong>
\u3000\u3000\u5728\u9e1f\u54e5\u7684\u79c1\u623f\u83dc\u7684\u4e00\u4e66\u4e2d\uff0c\u4ecb\u7ecd\u4e86UNIX\u7684\u7248\u672c\u4ee5\u53ca\u4f17\u591a\u7684SHELL\u7248\u672c\u3002
\u3000\u3000\u65e9\u5728UNIX\u5e74\u4ee3\uff0c\u53d1\u5c55\u8005\u4f17\u591a\uff0c\u6240\u4ee5\u7531\u4e8eshell\u4f9d\u636e\u53d1\u5c55\u8005\u7684\u4e0d\u540c\u5c31\u6709\u8bb8\u591a\u7248\u672c\uff0c\u6bd4\u5982sh,C SHell,K SHell,\u8fd8\u6709TCSH\u7b49\uff0c\u6bcf\u4e00\u79cdShell\u90fd\u5404\u6709\u7279\u70b9\u3002\u5f53\u7136\u4e5f\u6709\u6211\u4eec\u7684bash,bash\u8fd9\u4e2ashell\u662fBourne Shell\u7684\u589e\u5f3a\u7248\u672c\uff0c\u4e5f\u662f\u57fa\u4e8eGNU\u7684\u67b6\u6784\u4e0b\u53d1\u5c55\u51fa\u6765\u7684\u3002<\/p>\n

sh\u548cbash\u7684\u533a\u522b<\/strong>
\u3000\u3000\u56e0\u4e3abash\u662fsh\u7684\u589e\u5f3a\u7248\u672c\uff0c\u5728\u6211\u4eec\u5e73\u5e38\u5b9e\u5730\u64cd\u4f5c\u7684\u65f6\u5019\u5982\u679csh\u8fd9\u4e2a\u547d\u4ee4\u4e0d\u7075\u4e86\u6211\u4eec\u5e94\u5f53\u4f7f\u7528bash\u3002
\u3000\u3000\u4e3e\u4e2a\u4f8b\u5b50\u6765\u8bf4\u5982\u679c\u6211\u4eec\u4f7f\u7528\u6570\u5b57\u7684\u52a0\u51cf
\u3000\u3000\u6709\u51e0\u79cd\u4e0d\u540c\u7684\u7248\u672c\uff0c<\/p>\n

#! \/bin\/bash\nno1=4\nno2=5\nlet no1++\nlet result=no1+no2\necho $result\nresult=$[no1+no2]\necho $result\nresult=$[$no1+5]\necho $result\nresult=$((no1+50))\necho $result\n\n\n\u5982\u679c\u4f7f\u7528sh\u5219\u8f93\u51fa\ntest3.sh: 4: test3.sh: let: not found\ntest3.sh: 5: test3.sh: let: not found\n$[no1+no2]\n$[4+5]\n54<\/pre>\n
\u53ef\u4ee5\u770b\u89c1sh\u4e0d\u4ec5\u4e0d\u652f\u6301\u591a\u79cd\u547d\u4ee4\uff0c\u800c\u4e14\u5f88\u591a\u7ec6\u5c0f\u7684\u5dee\u522b\u3002 
\u6240\u4ee5\u5176\u5b9e\u6211\u4eec\u5e94\u8be5\u66f4\u591a\u7684\u4f7f\u7528bash,\u4e5f\u5c31\u662f.\/xx.sh,\u524d\u63d0\u662f\u4fee\u6539\u6743\u9650\uff0cchmod a+x xx.sh\u3002<\/p>\n
\u6587\u4e2d\u5173\u4e8eLinux,shell,Bash\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aLinux SHELL\u4e2dsh\u548cbash\u7684\u533a\u522b\u662f\u4ec0\u4e48\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
Linux SHELL\u4e2dsh\u548cbash\u7684\u533a\u522b\u662f\u4ec0\u4e48 \u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728\u6587\u7ae0\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300aLinux SHELL\u4e2dsh\u548cbash\u7684\u533a\u522b\u662f\u4ec0\u4e48\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~ \u4ec0\u4e48\u662fSHELL\uff1f\u3000\u3000shell\u7684\u4e2d\u6587\u610f\u601d\u5c31\u662f\u8d1d\u58f3\uff0c\u5176\u5b9e\u6bd4\u8f83\u7c7b\u4f3c\u4e8e\u6211\u4eec\u5185\u6838\u7684\u58f3\u3002\u7b80\u800c\u8a00\u4e4b\u5c31\u662f\u53ea\u8981\u80fd\u591f\u64cd\u4f5c\u5e94\u7528\u7a0b\u5e8f\u7684\u63a5\u53e3\u90fd\u80fd\u591f\u79f0\u4e3aSHELL\u3002\u72ed\u4e49\u7684shell\u6307\u7684\u662f\u547d\u4ee4\u884c\u65b9\u9762\u7684\u8f6f\u4ef6\uff0c\u5e7f\u4e49\u7684SHELL\u5219\u5305\u62ec\u56fe\u5f62\u754c\u9762\u3002 SHELL\u7684\u7248\u672c\u3000\u3000\u5728\u9e1f\u54e5\u7684\u79c1\u623f\u83dc\u7684\u4e00\u4e66\u4e2d\uff0c\u4ecb\u7ecd\u4e86UNIX\u7684\u7248\u672c\u4ee5\u53ca\u4f17\u591a\u7684SHELL\u7248\u672c\u3002 \u3000\u3000\u65e9\u5728UNIX\u5e74\u4ee3\uff0c\u53d1\u5c55\u8005\u4f17\u591a\uff0c\u6240\u4ee5\u7531\u4e8eshell\u4f9d\u636e\u53d1\u5c55\u8005\u7684\u4e0d\u540c\u5c31\u6709\u8bb8\u591a\u7248\u672c\uff0c\u6bd4\u5982sh,C SHell,K SHell,\u8fd8\u6709TCSH\u7b49\uff0c\u6bcf\u4e00\u79cdShell\u90fd\u5404\u6709\u7279\u70b9\u3002\u5f53\u7136\u4e5f\u6709\u6211\u4eec\u7684bash,bash\u8fd9\u4e2ashell\u662fBourne Shell\u7684\u589e\u5f3a\u7248\u672c\uff0c\u4e5f\u662f\u57fa\u4e8eGNU\u7684\u67b6\u6784\u4e0b\u53d1\u5c55\u51fa\u6765\u7684\u3002 sh\u548cbash\u7684\u533a\u522b\u3000\u3000\u56e0\u4e3abash\u662fsh\u7684\u589e\u5f3a\u7248\u672c\uff0c\u5728\u6211\u4eec\u5e73\u5e38\u5b9e\u5730\u64cd\u4f5c\u7684\u65f6\u5019\u5982\u679csh\u8fd9\u4e2a\u547d\u4ee4\u4e0d\u7075\u4e86\u6211\u4eec\u5e94\u5f53\u4f7f\u7528bash\u3002 \u3000\u3000\u4e3e\u4e2a\u4f8b\u5b50\u6765\u8bf4\u5982\u679c\u6211\u4eec\u4f7f\u7528\u6570\u5b57\u7684\u52a0\u51cf \u3000\u3000\u6709\u51e0\u79cd\u4e0d\u540c\u7684\u7248\u672c\uff0c #! \/bin\/bash no1=4 no2=5 let no1++ let result=no1+no2 echo $result result=$[no1+no2] echo $result result=$[$no1+5] echo $result result=$((no1+50)) echo $result \u5982\u679c\u4f7f\u7528sh\u5219\u8f93\u51fa test3.sh: 4: test3.sh: let: not found test3.sh: 5: test3.sh: let: not found $[no1+no2] $[4+5] 54 \u53ef\u4ee5\u770b\u89c1sh\u4e0d\u4ec5\u4e0d\u652f\u6301\u591a\u79cd\u547d\u4ee4\uff0c\u800c\u4e14\u5f88\u591a\u7ec6\u5c0f\u7684\u5dee\u522b\u3002 \u6240\u4ee5\u5176\u5b9e\u6211\u4eec\u5e94\u8be5\u66f4\u591a\u7684\u4f7f\u7528bash,\u4e5f\u5c31\u662f.\/xx.sh,\u524d\u63d0\u662f\u4fee\u6539\u6743\u9650\uff0cchmod a+x xx.sh\u3002 \u6587\u4e2d\u5173\u4e8eLinux,shell,Bash\u7684\u77e5\u8bc6\u4ecb\u7ecd\uff0c\u5e0c\u671b\u5bf9\u4f60\u7684\u5b66\u4e60\u6709\u6240\u5e2e\u52a9\uff01\u82e5\u662f\u53d7\u76ca\u532a\u6d45\uff0c\u90a3\u5c31\u52a8\u52a8\u9f20\u6807\u6536\u85cf\u8fd9\u7bc7\u300aLinux SHELL\u4e2dsh\u548cbash\u7684\u533a\u522b\u662f\u4ec0\u4e48\u300b\u6587\u7ae0\u5427\uff0c\u4e5f\u53ef\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\u4e86\u89e3\u76f8\u5173\u6280\u672f\u6587\u7ae0\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8],"tags":[],"class_list":["post-52227","post","type-post","status-publish","format-standard","hentry","category-os"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52227","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=52227"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52227\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=52227"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=52227"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=52227"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}