{"id":1563,"date":"2024-10-19T11:30:54","date_gmt":"2024-10-19T03:30:54","guid":{"rendered":"http:\/\/blue.yn.cn\/?p=1563"},"modified":"2024-11-10T19:01:17","modified_gmt":"2024-11-10T11:01:17","slug":"expect%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"http:\/\/blue.yn.cn\/?p=1563","title":{"rendered":"expect\u8be6\u89e3"},"content":{"rendered":"<p><code>expect<\/code>\u662f\u57fa\u4e8e<code>Tcl (tool command language)<\/code>\u8bed\u8a00\u5f00\u53d1\u7684\uff0c\u4e3b\u8981\u5e94\u7528\u4e8e\u81ea\u52a8\u5316\u4ea4\u4e92\u5f0f\u64cd\u4f5c\u7684\u573a\u666f\uff0c\u501f\u52a9<code>expect<\/code>\u5904\u7406\u4ea4\u4e92\u7684\u547d\u4ee4\uff0c\u53ef\u4ee5\u5c06\u4ea4\u4e92\u8fc7\u7a0b\u5982\uff1a<code>ssh<\/code>\u767b\u5f55\uff0c<code>ftp<\/code>\u767b\u5f55\u7b49\u5199\u5728\u4e00\u4e2a\u811a\u672c\u4e0a\uff0c\u4f7f\u4e4b\u81ea\u52a8\u5316\u5b8c\u6210\u3002\u5c24\u5176\u9002\u7528\u4e8e\u9700\u8981\u5bf9\u591a\u53f0\u670d\u52a1\u5668\u6267\u884c\u76f8\u540c\u64cd\u4f5c\u7684\u73af\u5883\u4e2d\uff0c\u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u7cfb\u7edf\u7ba1\u7406\u4eba\u5458\u7684\u5de5\u4f5c\u6548\u7387<\/p>\n<h3>\u5e38\u7528\u6307\u4ee4<\/h3>\n<ul>\n<li><code>spawn<\/code>\uff1a\u4ea4\u4e92\u7a0b\u5e8f\u5f00\u59cb\u540e\u9762\u8ddf\u547d\u4ee4\u6216\u8005\u6307\u5b9a\u7a0b\u5e8f\uff08\u5728\u58f3\u5185\u542f\u52a8\u8fd9\u4e2a\u8fdb\u7a0b\uff09<\/li>\n<li><code>expect<\/code>\uff1a\u83b7\u53d6\u5339\u914d\u4fe1\u606f\u5339\u914d\u6210\u529f\u5219\u6267\u884c<code>expect<\/code>\u540e\u9762\u7684\u7a0b\u5e8f\u52a8\u4f5c\uff08\u68c0\u6d4b\u7531\u58f3\u5185\u8fdb\u7a0b\u53d1\u51fa\u7684\u7279\u5b9a\u4ea4\u4e92\u6307\u4ee4\u53cd\u9988\u5b57\u7b26\u4e32\u540e\u5411\u4e0b\u6267\u884c\uff09<\/li>\n<li><code>send<\/code>\uff1a\u7528\u4e8e\u5411\u8fdb\u7a0b\u53d1\u9001\u5b57\u7b26\u4e32\uff08\u4ece\u58f3\u5916\u5411\u58f3\u5185\u8fdb\u7a0b\u53d1\u9001\u4e00\u6761\u5b57\u7b26\u4e32\uff0c\u6362\u884c\u7b26\u4e3a\u786e\u8ba4\u7ed3\u675f\uff09<\/li>\n<li><code>interact<\/code>\uff1a\u8fd0\u884c\u7528\u6237\u4ea4\u4e92<\/li>\n<li><code>exp_continue<\/code>\uff1a\u5728<code>expect<\/code>\u4e2d\u591a\u6b21\u5339\u914d\u5c31\u9700\u8981\u7528\u5230<\/li>\n<li><code>send_user<\/code>\uff1a\u7528\u6765\u6253\u5370\u8f93\u51fa\uff0c\u76f8\u5f53\u4e8e<code>shell<\/code>\u4e2d\u7684<code>echo<\/code><\/li>\n<li><code>exit<\/code>\uff1a\u9000\u51fa<code>expect<\/code>\u811a\u672c<\/li>\n<li><code>eof<\/code>\uff1a<code>expect<\/code>\u6267\u884c\u7ed3\u675f\uff0c\u9000\u51fa<\/li>\n<li><code>set<\/code>\uff1a\u5b9a\u4e49\u53d8\u91cf<\/li>\n<li><code>puts<\/code>\uff1a\u8f93\u51fa\u53d8\u91cf<\/li>\n<\/ul>\n<h3>\u547d\u4ee4\u5b9e\u4f8b<\/h3>\n<h4>\u7b80\u5355\u4f8b\u5b50<\/h4>\n<p>\u5148\u770b\u4e00\u4e2a\u7b80\u5355\u4f8b\u5b50\uff0c\u5c31\u662f\u81ea\u52a8\u767b\u5f55\u5230\u7f51\u7edc\u8bbe\u5907<code>msr3600<\/code><\/p>\n<pre><code class=\"language-bash\">cat \/root\/expect\/ssh.tcl\n#!\/usr\/bin\/expect\n\nspawn ssh xxx@192.168.1.2\nexpect &quot;password&quot;\n\nsend &quot;xxx&quot;\n\nexpect &quot;&gt;&quot;\n\nsend &quot;quit\\n&quot;\nexpect eof\n\n# \u6267\u884c\nexpect ssh.tcl\n\u53ef\u4ee5\u81ea\u52a8\u767b\u5f55\u7136\u540e\u518d\u9000\u51fa<\/code><\/pre>\n<h4>send\u547d\u4ee4<\/h4>\n<p><code>send<\/code>\u547d\u4ee4\u63a5\u6536\u4e00\u4e2a\u5b57\u7b26\u4e32\u53c2\u6570\uff0c\u5e76\u5c06\u8be5\u53c2\u6570\u53d1\u9001\u5230\u8fdb\u7a0b\uff08\u524d\u63d0\u662f\u5148\u4f7f\u7528<code>spawn<\/code>\u5f00\u542f\u8fdb\u7a0b\uff09<br \/>\n\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u67092\u5904\u4f7f\u7528\u4e86<code>send<\/code><br \/>\n\u5176\u5b9e\u5c31\u662f<code>spawn<\/code>\u6253\u5f00\u4e86\u4e00\u6b21<code>ssh<\/code>\u8fde\u63a5\u4ee5\u540e\uff0c\u4f1a\u8981\u6c42\u6211\u4eec\u8f93\u5165\u767b\u5f55\u5bc6\u7801\uff0c<br \/>\n\u7b2c\u4e00\u4e2a<code>send<\/code>\u5c31\u662f\u5c06\u5bc6\u7801\u53d1\u9001\u5230<code>spawn<\/code>\u7684\u8fdb\u7a0b\u4e2d\u3002<br \/>\n\u7b2c\u4e8c\u4e2a<code>send<\/code>\u5c31\u662f\u9000\u51fa<code>ssh<\/code>\u7684\u610f\u601d\u3002<\/p>\n<h4>expect<\/h4>\n<p><code>expect<\/code>\u547d\u4ee4\u548c<code>send<\/code>\u547d\u4ee4\u6b63\u597d\u76f8\u53cd\uff0c<code>expect<\/code>\u901a\u5e38\u662f\u7528\u6765\u7b49\u5f85\u4e00\u4e2a\u8fdb\u7a0b\u7684\u53cd\u9988\u3002<br \/>\n<code>expect<\/code>\u53ef\u4ee5\u63a5\u6536\u4e00\u4e2a\u5b57\u7b26\u4e32\u53c2\u6570\uff0c\u4e5f\u53ef\u4ee5\u63a5\u6536\u6b63\u5219\u8868\u8fbe\u5f0f\u53c2\u6570\u3002<br \/>\n\u6bd4\u5982<code>root<\/code>\u767b\u5f55\u4e4b\u540e\uff0c\u754c\u9762\u4f1a\u8f93\u51fa\u4e00\u4e2a<code>#<\/code>\uff0c\u90a3\u4e48<code>expect<\/code>\u6b64\u65f6\u5339\u914d\u7684\u662f\u8fd9\u4e2a<code>#<\/code>\u3002<br \/>\n<code>ssh<\/code>\u767b\u5f55\u540e\uff0c\u4e00\u822c<code>shell<\/code>\u4f1a\u8fd4\u56de\u4e00\u4e2a<code>password:<\/code>\u7684\u8f93\u51fa\uff0c\u90a3\u4e48\u6b64\u65f6\u53ef\u4ee5\u5339\u914d<code>password<\/code>\u7684\u5b57\u7b26\u3002<\/p>\n<p>\u800c\u5982\u679c\u6211\u4eec\u6ca1\u6709\u901a\u8fc7<code>spawn<\/code>\u5f00\u542f\u4e00\u4e2a<code>ssh<\/code>\u6216\u8005\u7c7b\u4f3c\u7684\u8fdb\u7a0b\uff0c\u800c\u662f\u76f4\u63a5\u5728<code>expect<\/code>\u7a0b\u5e8f\u91cc\u9762<code>expect<\/code>\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u65f6\u5019\uff0c\u4f1a\u600e\u4e48\u6837\uff1f<\/p>\n<pre><code class=\"language-bash\">#!\/bin\/bash\/expect\n\nexpect &quot;hello&quot; { send &quot;hello world\\n&quot; }<\/code><\/pre>\n<p>\u8fd9\u65f6\u5019\uff0c\u5f53\u6211\u4eec\u6267\u884c\u811a\u672c\u7684\u65f6\u5019\uff0c\u4f1a\u53d1\u73b0\uff0c\u9664\u975e\u5728\u952e\u76d8\u4e0a\u6572\u5165<code>hello<\/code>\u7136\u540e\u786e\u8ba4\uff0c\u624d\u4f1a\u8f93\u51fa<code>hello world<\/code><\/p>\n<p><code>expect<\/code>\u7528\u6cd5\u662f\u5339\u914d\u5230\u6307\u5b9a\u7684\u5b57\u7b26\u65f6\uff0c\u6267\u884c\u6307\u5b9a\u7684\u52a8\u4f5c\u3002\u5339\u914d\u67092\u79cd\u5339\u914d\u65b9\u5f0f\uff1a<\/p>\n<h5>\u5355\u4e00\u5206\u652f\u5339\u914d<\/h5>\n<p>\u7c7b\u4f3c\u4e0e\u4e0a\u9762\u7684\u4f8b\u5b50\uff1a<br \/>\n<code>expect &quot;hello&quot; { send &quot;hello world\\n&quot; }<\/code><br \/>\n\u5355\u4e00\u5339\u914d\u5c31\u662f\u53ea\u6709\u4e00\u79cd\u5339\u914d\u60c5\u51b5\u3002<br \/>\n\u6709\u70b9\u7c7b\u4f3c\u4e8e\u666e\u901a\u7f16\u7a0b\u8bed\u8a00\u7684<code>if<\/code>\u8bed\u53e5\uff0c\u53ea\u6709\u4e00\u4e2a\u6761\u4ef6\u7684\u60c5\u51b5\u3002<\/p>\n<h5>\u591a\u5206\u652f\u5339\u914d\u6a21\u5f0f<\/h5>\n<pre><code class=\"language-bash\">#!\/usr\/bin\/expect\nset timeout 5\n\nexpect {\n    &quot;hello&quot; {send &quot;hello world\\n&quot;} \n    &quot;hi&quot; {send &quot;hi world&quot;} \n    &quot;bye&quot; {send &quot;bye world&quot;}\n}<\/code><\/pre>\n<p>\u6211\u4eec\u53d1\u73b0\uff0c<code>expect<\/code>\u8bed\u8a00\u90fd\u662f\u7528<code>{}<\/code>\u6765\u505a\u4ee3\u7801\u5206\u5272\u548c\u4ee3\u7801\u5757\u5206\u5272\u7684\u3002<\/p>\n<h4>spawn<\/h4>\n<p>\u6700\u5f00\u59cb\u7684<code>ssh<\/code>\u6848\u4f8b\u91cc\u9762\uff0c\u6211\u4eec\u4f7f\u7528<code>spawn<\/code>\u5f00\u542f\u4e86\u4e00\u4e2a<code>ssh<\/code>\u8fdb\u7a0b\uff0c\u7136\u540e\u4f7f\u7528<code>send<\/code>\u8f93\u5165\u5bc6\u7801\u3002<br \/>\n\u6211\u4eec\u5728\u52a0\u591a\u5199\u547d\u4ee4\uff0c\u67e5\u770b\u767b\u5f55\u8bbe\u5907\u7684<code>version<\/code>\uff1a<\/p>\n<pre><code class=\"language-bash\">#!\/usr\/bin\/expect\n\nspawn ssh xxx@x.x.x.x\nexpect &quot;password&quot;\nsend &quot;xxx\\n&quot;\n\nexpect &quot;&gt;&quot;\nsend &quot;system-view\\n&quot;\n\nexpect &quot;]&quot;\nsend &quot;display version\\n&quot;\n\nsend &quot;exit\\n&quot;\nsend &quot;quit\\n&quot;\nexpect eof<\/code><\/pre>\n<p><code>spawn<\/code>\u5f00\u542f\u4e00\u4e2a<code>ssh<\/code>\u4ee5\u540e\uff0c\u4f1a\u8fdb\u5165\u5230\u7f51\u7edc\u8bbe\u5907\u7684<code>shell<\/code>\u767b\u5f55\u73af\u5883\u4e0b\uff0c<br \/>\n\u8fd9\u65f6\u5019\u5411\u8fdb\u7a0b\u53d1\u9001\u4e00\u4e2a<code>display version<\/code>\u8fd9\u6837\u7684\u5b57\u7b26\u4e32\uff0c\u7f51\u7edc\u8bbe\u5907\u5c31\u80fd\u591f\u8bc6\u522b\u8fd9\u662f\u4e00\u4e2a\u6709\u610f\u4e49\u7684\u6307\u4ee4\uff0c\u5e76\u8fd4\u56de\u6307\u4ee4\u7684\u7ed3\u679c\u3002<\/p>\n<h4>interact<\/h4>\n<p>\u4e0a\u8ff0\u7684\u4f8b\u5b50\u90fd\u662f\u81ea\u52a8\u5b8c\u6210\u4e86\u4e00\u4e9b\u52a8\u4f5c\u3002<br \/>\n\u6709\u65f6\u5019\u6211\u4eec\u5e0c\u671b\u505c\u7559\u5728\u754c\u9762\uff0c\u7b49\u5f85\u4eba\u5de5\u64cd\u4f5c\u7684\u60c5\u51b5\u3002<br \/>\n\u8fd9\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u7528<code>interact<\/code>\u6307\u4ee4\uff0c\u6765\u7b49\u5f85\u4eba\u5de5\u5e72\u9884<\/p>\n<pre><code class=\"language-bash\">#!\/usr\/bin\/expect\n\nspawn ssh xxx@x.x.x.x\nexpect &quot;password&quot;\nsend &quot;xxx\\n&quot;\n\nexpect &quot;&gt;&quot;\nsend &quot;system-view\\n&quot;\n\nexpect &quot;]&quot;\ninteract<\/code><\/pre>\n<p>\u8be5\u4f8b\u5b50\u6267\u884c\u5b8c<code>system-view<\/code>\u4ee5\u540e\uff0c\u4f1a\u505c\u7559\u5728<code>expect<\/code>\u6253\u5f00\u7684<code>ssh<\/code>\u754c\u9762\uff0c\u7b49\u5f85\u4eba\u5de5\u64cd\u4f5c\u3002<\/p>\n<h4>set<\/h4>\n<p>\u8be5\u6307\u4ee4\u662f\u7528\u6765\u8bbe\u7f6e\u53d8\u91cf\u503c\u3002\u6bd4\u5982\uff1a<\/p>\n<pre><code class=\"language-bash\">#!\/usr\/bin\/expect\n\nset uname xxx\nset pwd yyy\n\nspawn ssh ${uname}@x.x.x.x\nexpect &quot;password&quot;\nsend &quot;${pwd}\\n&quot;\n\nexpect &quot;&gt;&quot;\nsend &quot;quit\\n&quot;\nexpect eof<\/code><\/pre>\n<h3>\u4f20\u53c2<\/h3>\n<p>\u5f88\u591a\u573a\u666f\u4e0b\uff0c\u6211\u4eec\u5199\u4e00\u4e2a\u811a\u672c\u90fd\u662f\u8981\u4f20\u9012\u53c2\u6570\u7684\u3002<br \/>\n<code>expect<\/code>\u4e5f\u4e0d\u4f8b\u5916\u3002<br \/>\n<code>expect<\/code> \u67092\u4e2a\u5185\u7f6e\u53d8\u91cf\uff1a<code>argc<\/code>\u548c<code>argv<\/code>\u3002<br \/>\n<code>argc<\/code>\u8868\u793a\u53c2\u6570\u7684\u6570\u91cf\uff0c\u7c7b\u4f3c\u4e8e\u666e\u901a<code>shell<\/code>\u811a\u672c\u7684<code>#<\/code>\u3002<br \/>\n<code>argv<\/code>\u5219\u53ef\u4ee5\u7ed9\u81ea\u8eab\u4f20\u9012\u4e00\u4e2a\u53c2\u6570\uff0c\u4ee5\u4fbf\u811a\u672c\u53d6\u51fa\u6307\u5b9a\u4f4d\u7f6e\u7684\u53c2\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code class=\"language-bash\">#!\/usr\/bin\/expect\n\nset uname [lindex $argv 0]\nset pwd [lindex $argv 1]\nputs &quot;$argc&quot;\nputs &quot;$argv0&quot;\n\nspawn ssh ${uname}@x.x.x.x\nexpect &quot;password&quot;\nsend &quot;${pwd}\\n&quot;\n\nexpect &quot;&gt;&quot;\nsend &quot;quit\\n&quot;\nexpect eof<\/code><\/pre>\n<p>\u6211\u4eec\u53ef\u4ee5\u5728\u8fd0\u884c\u811a\u672c\u65f6\u4f20\u51652\u4e2a\u53c2\u6570<br \/>\n<code>expect ssh4.tcl xxx yyy<\/code><\/p>\n<p><code>expect<\/code>\u8fd8\u6709\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u5185\u7f6e\u53d8\u91cf\uff0c<code>arvg0<\/code>\u3002<br \/>\n<code>argv<\/code>\u662f\u5b58\u50a8\u4e86\u6240\u6709\u4f20\u9012\u8fdb\u6765\u7684\u53c2\u6570\u7684\u53d8\u91cf\u3002<br \/>\n\u800c<code>argv0<\/code>\u5219\u662f\u811a\u672c\u7684\u540d\u79f0\u3002\u8fd9\u4e2a\u548cshell\u811a\u672c\u7684<code>$0<\/code>\u4e00\u4e2a\u610f\u601d\u3002<\/p>\n<p>\u811a\u672c\u91cc\u9762\uff0c\u51fa\u73b0\u4e86\u4e00\u4e2aput\u6307\u4ee4\uff0c\u8fd9\u4e2a\u6307\u4ee4\u662f\u5411\u6807\u51c6\u8f93\u51fa\u8f93\u51fa\u5185\u5bb9\u3002<\/p>\n<p>\u4ece\u7ed3\u679c\u770b\uff0c\u6211\u4eec\u4f20\u9012\u4e862\u4e2a\u53c2\u6570\uff0c<code>puts<\/code>\u6307\u4ee4\u5c06<code>$argc<\/code>\u8f93\u51fa\u5230\u4e86\u5c4f\u5e55\uff0c\u503c\u662f2\uff0c\u8868\u793a\u67092\u4e2a\u53c2\u6570\u3002<br \/>\n\u4e5f\u5c06<code>$argv0<\/code>\u811a\u672c\u540d\u79f0\u8f93\u51fa\u5230\u4e86\u5c4f\u5e55\u3002<br \/>\n\u540c\u65f6\uff0c\u901a\u8fc7<code>lindex $argv int<\/code>,\u83b7\u53d6\u5230\u6307\u5b9a\u4f4d\u7f6e\u7684\u53c2\u6570\u503c\u3002<\/p>\n<h3>\u8fd0\u7b97<\/h3>\n<h4>incr<\/h4>\n<p>\u589e\u91cf\u3002\u4e00\u822c\u7528\u5728\u6570\u5b66\u8ba1\u7b97\u7684\u65f6\u5019\u3002<br \/>\n\u8bed\u6cd5\u4e3a\uff1a<code>incr arg {step}<\/code>\uff0c<code>arg<\/code>\u65f6\u8981\u589e\u52a0\u7684\u53c2\u6570\u540d\uff0c<code>step<\/code>\u662f\u589e\u91cf\u503c\uff0c\u53ef\u4ee5\u4e0d\u6307\u5b9a\uff0c\u4e0d\u6307\u5b9a\u4e3a1\u3002<\/p>\n<pre><code class=\"language-bash\">puts &quot;------incr-------&quot;\nset x 10\nputs $x\nincr x 5\nputs $x\n\n# \u7ed3\u679c\u5982\u4e0b\uff1a\n------incr-------\n10\n15<\/code><\/pre>\n<p>\u5176\u5b9e\u8fd9\u91cc\u7684<code>incr x 5<\/code>\u4e5f\u76f8\u5f53\u4e8e<code>set x [expr $x + 5]<\/code><\/p>\n<h4>[]\u7b26\u53f7<\/h4>\n<pre><code class=\"language-bash\"># \u8bbf\u95ee\u6570\u7ec4\nputs [lindex $argv 1]\n\n# \u6570\u5b66\u8ba1\u7b97\u7684\u65f6\u5019\nputs [expr $x + 5]\n\n# \u5206\u5272\u5b57\u7b26\u4e32\u7684\u65f6\u5019\nset ss &quot;aa,bb,cc,dd&quot;\nputs [split $ss &quot;,&quot;]<\/code><\/pre>\n<h3>\u6570\u7ec4<\/h3>\n<p>\u6240\u6709\u4f20\u9012\u7684\u53c2\u6570\uff0c\u88ab\u5b58\u653e\u5728<code>argv<\/code>\u4e2d\u3002<br \/>\n\u5176\u5b9e<code>argv<\/code>\u5c31\u662f\u6570\u7ec4<\/p>\n<h4>\u6570\u7ec4\u7684\u5b9a\u4e49<\/h4>\n<p>\u6570\u7ec4\u7684\u5b9a\u4e49\uff0c\u9700\u8981\u7ed3\u5408set\u7684\u6307\u4ee4<br \/>\n<code>set j &quot;a b c d&quot;<\/code><br \/>\n\u6570\u7ec4\u7684\u6240\u6709\u5143\u7d20\u4e4b\u95f4\uff0c\u9700\u8981\u7528\u7a7a\u683c\u9694\u5f00\u3002<\/p>\n<h4>\u6570\u7ec4\u8bbf\u95ee<\/h4>\n<p>\u6211\u4eec\u4f7f\u7528<code>[lindex $argv 0]<\/code>\u7684\u65b9\u6cd5\uff0c\u83b7\u53d6\u4e86\u7b2c0\u4e2a\u53c2\u6570\u3002\u8fd9\u4e2a\u6b63\u4e5f\u662f\u6570\u7ec4\u7684\u8bbf\u95ee\u65b9\u6cd5\uff1a<\/p>\n<pre><code class=\"language-bash\">#!\/usr\/bin\/expect\nset timeout 5\nset j &quot;a b c d e&quot;\nputs &quot;[lindex $j 2]&quot;\n\n# \u904d\u5386\u6570\u7ec4\uff0c\u53ef\u4ee5\u4f7f\u7528foreach\u7684\u65b9\u6cd5\uff1a\nset j &quot;a b c d e&quot;\nforeach jj $j {\n    puts &quot;$jj&quot;\n}<\/code><\/pre>\n<h4>for\u5faa\u73af<\/h4>\n<pre><code class=\"language-bash\">puts &quot;------\u9012\u589e-----&quot;\nfor {set i 0} { $i &lt; 5 } { incr i } {\n    puts &quot;$i&quot;\n}\nputs &quot;------\u9012\u51cf-----&quot;\nfor {set k 5} { $k &gt; 0 } { incr k -1 } {\n    puts &quot;$k&quot;\n}<\/code><\/pre>\n<h4>while\u5faa\u73af<\/h4>\n<pre><code class=\"language-bash\">puts &quot;------while\u9012\u589e-----&quot;\nset m 0\nwhile {$m &lt; 5} {\n    puts &quot;$m&quot;\n    incr m 2\n}<\/code><\/pre>\n<h4>foreach\u5199\u6cd5<\/h4>\n<pre><code class=\"language-bash\">#!\/usr\/bin\/expect\nset timeout 5\nputs &quot;------\u904d\u5386argv--------&quot;\nforeach arg $argv {\n    puts &quot;$arg&quot;\n}\n\n# \u8fd8\u53ef\u4ee5\u8fd9\u4e48\u904d\u5386\n#!\/usr\/bin\/expect\nset timeout 5\nfor {set y 0 } { $y &lt; $argc} {incr y} {\n    puts &quot;arg $y: [lindex $argv $y]&quot;\n}<\/code><\/pre>\n<h3>shell\u8c03\u7528expect<\/h3>\n<pre><code class=\"language-bash\">cat ssh.sh\n#!\/usr\/bin\/bash\n\nip=$1\npwd=$2\n\nexpect &lt;&lt; EOF\n        set timeout 10\n        spawn ssh ylzw@${ip}\n        expect &quot;password&quot;\n        send &quot;${pwd}\\n&quot;\n\n        expect &quot;&gt;&quot;\n        send &quot;system-view\\n&quot;\n\n        expect &quot;]&quot;\n        send &quot;display version\\n&quot;\n\n        send &quot;exit\\n&quot;\n        send &quot;quit\\n&quot;\n        expect eof\nEOF\necho &quot;end!&quot;<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>expect\u662f\u57fa\u4e8eTcl (tool command language)\u8bed\u8a00\u5f00\u53d1\u7684\uff0c\u4e3b\u8981\u5e94\u7528\u4e8e\u81ea\u52a8\u5316\u4ea4\u4e92\u5f0f\u64cd\u4f5c&#8230; &raquo; <a class=\"read-more-link\" href=\"http:\/\/blue.yn.cn\/?p=1563\">\u9605\u8bfb\u5168\u6587<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-1563","post","type-post","status-publish","format-standard","hentry","category-shell"],"_links":{"self":[{"href":"http:\/\/blue.yn.cn\/index.php?rest_route=\/wp\/v2\/posts\/1563","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/blue.yn.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/blue.yn.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/blue.yn.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/blue.yn.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1563"}],"version-history":[{"count":6,"href":"http:\/\/blue.yn.cn\/index.php?rest_route=\/wp\/v2\/posts\/1563\/revisions"}],"predecessor-version":[{"id":1717,"href":"http:\/\/blue.yn.cn\/index.php?rest_route=\/wp\/v2\/posts\/1563\/revisions\/1717"}],"wp:attachment":[{"href":"http:\/\/blue.yn.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1563"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/blue.yn.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1563"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/blue.yn.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1563"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}