{"id":707,"date":"2020-01-12T08:12:15","date_gmt":"2020-01-12T08:12:15","guid":{"rendered":"http:\/\/www.recologypower.com:9080\/?p=707"},"modified":"2020-01-12T08:12:15","modified_gmt":"2020-01-12T08:12:15","slug":"linuxlinux-%e4%b8%8bshell%e5%8f%98%e9%87%8f%e7%8e%af%e5%a2%83%e5%8f%98%e9%87%8f%e7%9a%84%e8%81%94%e7%b3%bb%e4%b8%8e%e5%8c%ba%e5%88%ab","status":"publish","type":"post","link":"http:\/\/www.recologypower.com:9080\/?p=707","title":{"rendered":"[Linux]Linux \u4e0bShell\u53d8\u91cf,\u73af\u5883\u53d8\u91cf\u7684\u8054\u7cfb\u4e0e\u533a\u522b"},"content":{"rendered":"\n<ol><li> <strong> \u7b80\u4ecb<\/strong><\/li><\/ol>\n\n\n\n<p> linux\u4e0b\u7684\u53d8\u91cf\u53ef\u5206\u6210\u4e24\u79cd\uff1aShell\u53d8\u91cf\u548c\u73af\u5883\u53d8\u91cf\u3002<\/p>\n\n\n\n<p> Shell\u53d8\u91cf\uff0c\u53c8\u79f0\u672c\u5730\u53d8\u91cf\uff0c\u5305\u62ec\u79c1\u6709\u53d8\u91cf\u4ee5\u53ca\u7528\u6237\u53d8\u91cf\uff0c\u4e0d\u540c\u7c7b\u7684shell\u6709\u4e0d\u540c\u7684\u79c1\u6709\u53d8\u91cf\uff0cbash,ksh,csh\u7b49\uff0c\u6bcf\u79cdshell\u7684\u79c1\u6709\u53d8\u91cf\u90fd\u4e0d\u4e00\u6837<\/p>\n\n\n\n<p> \u73af\u5883\u53d8\u91cf\uff0c\u53c8\u79f0\u7528\u6237\u53d8\u91cf\uff0c\u4e0eshell\u65e0\u5173<\/p>\n\n\n\n<p> \u5e38\u89c4\u5b9a\u4e49\u53d8\u91cf\u7684\u65b9\u6cd5\uff1a\u53d8\u91cf\u540d=\u53d8\u91cf\u503c<\/p>\n\n\n\n<p> \u6ce8\u610f\uff1a<\/p>\n\n\n\n<p> 1.\u53d8\u91cf\u540d\u548c=\u53f7\u4e4b\u95f4\u4e0d\u80fd\u6709\u7a7a\u683c\uff0c\u5426\u5219shell\u4f1a\u628a\u53d8\u91cf\u540d\u5f53\u6210\u547d\u4ee4<\/p>\n\n\n\n<p> 2.\u53d8\u91cf\u540d\u79f0\u4e00\u822c\u4f7f\u7528\u5927\u5199\u5b57\u6bcd<\/p>\n\n\n\n<ul><li> <strong> \u5e38\u7528\u7684\u76f8\u5173\u547d\u4ee4<\/strong><\/li><\/ul>\n\n\n\n<p> env\u547d\u4ee4\uff1a\u663e\u793a\u5f53\u524d\u7528\u6237\u7684\u73af\u5883\u53d8\u91cf<\/p>\n\n\n\n<p> set\u547d\u4ee4\uff1a\u4e0d\u52a0\u53c2\u6570\uff0c\u663e\u793a\u5f53\u524dshell\u7684\u6240\u6709\u672c\u5730\u8bbe\u7f6e\u7684Shell\u53d8\u91cf\uff0c\u5426\u5219\u8bbe\u7f6eshell\u53d8\u91cf<\/p>\n\n\n\n<p> unset\u547d\u4ee4\uff1aunset\u4e3ashell\u5185\u5efa\u6307\u4ee4\uff0c\u5220\u9664\u53d8\u91cf\u6216\u51fd\u6570\u3002<\/p>\n\n\n\n<p> exprot\u547d\u4ee4\uff1a\u663e\u793a(\u8bbe\u7f6e)\u5f53\u524d\u5bfc\u51fa\u6210\u7528\u6237\u53d8\u91cf\u7684shell\u53d8\u91cf(\u6ce8\u610f\uff1aexport\u4e3abash\u6216\u7c7bbash\u79c1\u6709\u7684\u547d\u4ee4)<\/p>\n\n\n\n<p> echo $\u53d8\u91cf\u540d\uff1a\u67e5\u770b\u53d8\u91cf\u503c(\u5176\u4e2d\uff0c$\u53d8\u91cf\uff1a\u5f15\u7528\u53d8\u91cf\u7684\u610f\u601d)<\/p>\n\n\n\n<ul><li> <strong> \u793a\u4f8b<\/strong><\/li><li> <strong> \u4f7f\u7528<\/strong><strong>env<\/strong><strong>\u547d\u4ee4\u663e\u793a\u5f53\u524d\u7528\u6237\u7684\u6240\u6709\u73af\u5883\u53d8\u91cf<\/strong><\/li><\/ul>\n\n\n\n<p> [laiyu@localhost ~]$ env<\/p>\n\n\n\n<p> HOSTNAME=localhost.localdomain<\/p>\n\n\n\n<p> SHELL=\/bin\/bash<\/p>\n\n\n\n<p> TERM=xterm<\/p>\n\n\n\n<p> HISTSIZE=1000<\/p>\n\n\n\n<p> USER=laiyu<\/p>\n\n\n\n<p> LS_COLORS=rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;&#8230;<\/p>\n\n\n\n<p> MAIL=\/var\/spool\/mail\/laiyu<\/p>\n\n\n\n<p> PATH=\/usr\/local\/bin:\/bin:\/usr\/bin:\/usr\/local\/sbin:\/usr\/sbin:\/sbin:\/home\/laiyu\/bin<\/p>\n\n\n\n<p> PWD=\/home\/laiyu<\/p>\n\n\n\n<p> LANG=en_US.UTF-8<\/p>\n\n\n\n<p> &#8230;<\/p>\n\n\n\n<p> HOME=\/home\/laiyu<\/p>\n\n\n\n<p> LOGNAME=laiyu<\/p>\n\n\n\n<p> &#8230;<\/p>\n\n\n\n<p> _=\/bin\/env<\/p>\n\n\n\n<ul><li> <strong> \u4f7f\u7528<\/strong><strong>set<\/strong><strong>\u547d\u4ee4\u663e\u793a\u5f53\u524d<\/strong><strong>shell<\/strong><strong>\u7684<\/strong><strong>\u6240\u6709\u672c\u5730<\/strong><strong>Shell<\/strong><strong>\u53d8\u91cf<\/strong><\/li><\/ul>\n\n\n\n<p> [root@localhost ~]# set | more<\/p>\n\n\n\n<p> BASH=\/bin\/bash<\/p>\n\n\n\n<p> &#8230;<\/p>\n\n\n\n<p> BASH_CMDS=()<\/p>\n\n\n\n<p> &#8230;<\/p>\n\n\n\n<ul><li> <strong> \u4f7f\u7528<\/strong><strong>unset<\/strong><strong>\u547d\u4ee4\u6765\u6e05\u9664\u53d8\u91cf<\/strong><strong>(<\/strong><strong>\u4e0d\u7ba1\u662f<\/strong><strong>shell<\/strong><strong>\u53d8\u91cf\u8fd8\u662f\u73af\u5883\u53d8\u91cf<\/strong><strong>)<\/strong><\/li><\/ul>\n\n\n\n<p> [laiyu@localhost ~]$ export TEST=test #\u589e\u52a0\u4e00\u4e2a\u73af\u5883\u53d8\u91cfTEST<\/p>\n\n\n\n<p> [laiyu@localhost ~]$ env | grep TEST&nbsp; #\u67e5\u770b\u589e\u52a0\u7684\u53d8\u91cf<\/p>\n\n\n\n<p> TEST=test<\/p>\n\n\n\n<p> [laiyu@localhost ~]$ unset $TEST #\u5220\u9664\u73af\u5883\u53d8\u91cfTEST(\u8fd9\u91ccTEST\u524d\u6709\u65e0\u7f8e\u5143\u7b26\u90fd\u4e00\u6837)<\/p>\n\n\n\n<p> [laiyu@localhost ~]$ env | grep TEST #\u8f93\u51fa\u4e3a\u7a7a<\/p>\n\n\n\n<p> \u6ce8\u610f\uff1aunset\u53ea\u80fd\u5220\u9664\u975e\u53ea\u8bfb\u53d8\u91cf<\/p>\n\n\n\n<ul><li> <strong> \u4f7f\u7528<\/strong><strong>echo<\/strong><strong>\u547d\u4ee4\u663e\u793a\u73af\u5883\u53d8\u91cf<\/strong><strong>(HOME<\/strong><strong>\u53d8\u91cf\u4e3a\u4f8b<\/strong><strong>)<\/strong><\/li><\/ul>\n\n\n\n<p> [root@localhost ~]# echo $HOME<\/p>\n\n\n\n<p> \/root<\/p>\n\n\n\n<ul><li> <strong> \u4f7f\u7528<\/strong><strong>export<\/strong><strong>\u547d\u4ee4\u5c06<\/strong><strong>shell<\/strong><strong>\u53d8\u91cf\u5bfc\u51fa\u4e3a\u7528\u6237\u53d8\u91cf\uff0c\u5e76\u663e\u793a<\/strong><\/li><\/ul>\n\n\n\n<p><strong> \u5217\u51fa\u6240\u6709\u7684<\/strong><strong>Shell<\/strong><strong>\u8d4b\u4e88\u7a0b\u5e8f\u7684\u73af\u5883\u53d8\u91cf<\/strong><\/p>\n\n\n\n<p> [root@localhost ~]# export -p #\u7b49\u540cexport<\/p>\n\n\n\n<p> &#8230;<\/p>\n\n\n\n<p> declare -x HOME=&#8221;\/root&#8221;<\/p>\n\n\n\n<p> declare -x HOSTNAME=&#8221;localhost.localdomain&#8221;<\/p>\n\n\n\n<p> declare -x LANG=&#8221;en_US.UTF-8&#8243;<\/p>\n\n\n\n<p> declare -x LESSOPEN=&#8221;|\/usr\/bin\/lesspipe.sh %s&#8221;<\/p>\n\n\n\n<p> declare -x LOGNAME=&#8221;root&#8221;<\/p>\n\n\n\n<p> declare -x PATH=&#8221;\/usr\/local\/sbin:\/usr\/local\/bin:\/sbin:\/bin:\/usr\/sbin:\/usr\/bin:\/root\/bin:\/usr\/bin\/:\/usr\/local\/tsung\/bin&#8221;<\/p>\n\n\n\n<p> &#8230;<\/p>\n\n\n\n<p><strong> \u628a<\/strong><strong>shell<\/strong><strong>\u53d8\u91cf\u5bfc\u51fa\u4e3a\u7528\u6237\u53d8\u91cf<\/strong><\/p>\n\n\n\n<p> [root@localhost ~]# SHOUKE=ishouke&nbsp; #\u5b9a\u4e49shell\u53d8\u91cf<\/p>\n\n\n\n<p> [root@localhost ~]# echo $SHOUKE&nbsp;<\/p>\n\n\n\n<p> ishouke<\/p>\n\n\n\n<p> #\u67e5\u770b\u5f53\u524d\u7528\u6237\u7684\u7528\u6237\u53d8\u91cf\u662f\u5426\u5b58\u5728SHOUKE\u53d8\u91cf\uff0c\u7ed3\u679c\u662f\u4e0d\u5b58\u5728<\/p>\n\n\n\n<p> [root@localhost ~]# env | grep SHOUKE<\/p>\n\n\n\n<p> #\u67e5\u770b\u5f53\u524dshell\u7684\u672c\u5730\u53d8\u91cf\u662f\u5426\u5b58\u5728SHOUKE\u53d8\u91cf\uff0c\u7ed3\u679c\u662f\u4e0d\u5b58\u5728<\/p>\n\n\n\n<p> [root@localhost ~]# set | grep SHOUKE<\/p>\n\n\n\n<p> SHOUKE=ishouke<\/p>\n\n\n\n<p> #\u67e5\u770b<strong>Shel<\/strong>l\u8d4b\u4e88\u7a0b\u5e8f\u7684\u73af\u5883\u53d8\u91cf\u4e2d\u662f\u5426\u5b58\u5728SHOUKE\u53d8\u91cf\uff0c\u7ed3\u679c\u4e0d\u5b58\u5728<\/p>\n\n\n\n<p> [root@localhost ~]# export | grep SHOUKE<\/p>\n\n\n\n<p> #\u5bfc\u51fashell\u53d8\u91cf\u4e3a\u7528\u6237\u53d8\u91cf<\/p>\n\n\n\n<p> [root@localhost ~]# export SHOUKE<\/p>\n\n\n\n<p> [root@localhost ~]# env | grep SHOUKE<\/p>\n\n\n\n<p> SHOUKE=ishouke<\/p>\n\n\n\n<p> [root@localhost ~]#<\/p>\n\n\n\n<p> &#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;<\/p>\n\n\n\n<p> \u4e5f\u53ef\u4ee5\u5982\u4e0b\u65b9\u5f0f\u4f7f\u7528export<\/p>\n\n\n\n<p> [root@localhost ~]# export SHOUKE=ishouke<\/p>\n\n\n\n<p> [root@localhost ~]# env | grep SHOUKE<\/p>\n\n\n\n<p> SHOUKE=ishouke<\/p>\n\n\n\n<p> [root@localhost ~]#<\/p>\n\n\n\n<p> \u6ce8\u610f\uff1a\u4ee5\u4e0a\u7684\u8bbe\u7f6e\u4ec5\u5728\u5f53\u524d\u6253\u5f00\u7684shell\u7a97\u53e3\u6216\u6216\u5176\u5b50shell\u7a97\u53e3\u4e2d\u8d77\u4f5c\u7528\uff0c\u4e34\u65f6\u7684\uff0c\u5173\u95ed\u5f53\u524dshell\u7a97\u53e3\u6216\u91cd\u542f\u673a\u5668\uff0c\u5219\u521a\u624d\u7684\u8bbe\u7f6e\u5931\u6548\uff0c\uff0c\u6216\u6253\u5f00\u4e00\u4e2a\u65b0\u7a97\u53e3\uff0c\u8bbe\u7f6e\u5728\u65b0\u7a97\u53e3\u4e2d\u4e0d\u8d77\u4f5c\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"slide-text-bg2\">\n<h3>\u7b80\u4ecb linux\u4e0b\u7684\u53d8\u91cf\u53ef\u5206\u6210\u4e24\u79cd\uff1aSh<\/h3>\n<\/div>\n<div class=\"flex-btn-div\"><a href=\"http:\/\/www.recologypower.com:9080\/?p=707\" class=\"btn1 flex-btn\">\u9605\u8bfb\u66f4\u591a<\/a><\/div>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"_links":{"self":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/707"}],"collection":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=707"}],"version-history":[{"count":1,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/707\/revisions"}],"predecessor-version":[{"id":708,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=\/wp\/v2\/posts\/707\/revisions\/708"}],"wp:attachment":[{"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=707"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.recologypower.com:9080\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}