{"id":158872,"date":"2020-09-18T03:37:19","date_gmt":"2020-09-17T19:37:19","guid":{"rendered":"http:\/\/4563.org\/?p=158872"},"modified":"2020-09-18T03:37:19","modified_gmt":"2020-09-17T19:37:19","slug":"%e8%af%b7%e6%95%99%e4%b8%80%e4%b8%aa-bash-shell-%e4%b8%ad%e7%9a%84%e6%ad%a3%e5%88%99%e5%88%86%e7%bb%84%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=158872","title":{"rendered":"\u8bf7\u6559\u4e00\u4e2a Bash Shell \u4e2d\u7684\u6b63\u5219\u5206\u7ec4\u95ee\u9898"},"content":{"rendered":"<div>\n<div>\n<div>\n<h1>                  \u8bf7\u6559\u4e00\u4e2a Bash Shell \u4e2d\u7684\u6b63\u5219\u5206\u7ec4\u95ee\u9898               <\/h1>\n<p> <\/p>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : huyinjie <\/span>  <span><i><\/i> 2<\/span> <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n<div isfirst=\"1\"> <\/p>\n<p>\u60f3\u8981\u63d0\u53d6\u5b57\u6bb5 256&#215;144 \u4e2d\u7684 256 \u548c 144\uff0c\u518d\u5b58\u5165\u6570\u7ec4\u4e2d<br \/> \u4f7f\u7528 <code>echo 256x144 | egrep \"(d{3,4})x(d{3,4})1\"<\/code> \u6ca1\u4ec0\u4e48\u6548\u679c \u6c42\u52a9\u5404\u4f4d<\/p>\n<\/p><\/div>\n<div> <b>\u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (<span>5<\/span>)        <\/div>\n<div> <\/div>\n<\/p><\/div>\n<\/p><\/div>\n<ul>\n<li data-pid=\"3409328\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : napsterwu <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u6211\u4e2a\u4eba\u89c9\u5f97 egrep \u6ca1\u6709\u529e\u6cd5\u968f\u5fc3\u6240\u6b32\u7684\u64cd\u4f5c\uff0c\u8fd9\u4e2a\u9700\u6c42\u7684\u8bdd\u6211\u4f1a\u7528 cut + awk \u89e3\u51b3                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3409329\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : ETiV <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             echo 256&#215;144 | awk -Fx &#8216;{print $1,$2}&#8217; | read width height<\/p>\n<p>\u8bfb\u8fdb\u53d8\u91cf\u4e0d\u884c\u5417\uff1f                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3409330\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : aheadlead <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u5efa\u8bae\u4f7f\u7528 @ETiV \u7684\u65b9\u6cd5\u3002\u3002<\/p>\n<p>\u4e00\u5b9a\u8981\u7528 bash \u7684\u8bdd\uff0c\u4e5f\u53ef\u4ee5\u8fd9\u4e48\u5199:<\/p>\n<p>input=&#8221;256&#215;144&#8243;; [[ ${input} =~ ([0-9]+)x([0-9]+) ]] &amp;&amp; { x=${BASH_REMATCH[1]}; y=${BASH_REMATCH[2]} ; } ; echo $x,$y<\/p>\n<p>\uff08\u4e0d\u8fc7\u8fd9\u662f\u4f55\u5fc5\u5462\u2026                                                            <\/p><\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3409331\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u8cc7\u6df1\u5927\u4f6c : aheadlead <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             \u54ce\u2026 \u6211\u5e72\u5565\u5565\u4e0d\u884c\uff0c\u548b\u5199 bash \u5012\u633a\u4f1a\u2026<br \/>\uff08\u5947\u602a\u7684\u6280\u80fd\u589e\u52a0\u4e86                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li data-pid=\"3409332\" data-uid=\"2\">\n<div>\n<div>\n<div> <span>\u4e3b<\/span> <span>\u8cc7\u6df1\u5927\u4f6c : huyinjie <\/span>  <\/div>\n<div> <i title=\"\u5f15\u7528\"><\/i>  <span>          <\/span> <\/div>\n<\/p><\/div>\n<div>                                                             @ETiV \u611f\u8c22 \u5c31\u662f\u60f3\u8fd9\u6837 awk \u597d\u65b9\u4fbf<br \/>@aheadlead \u597d\u5427 \u8868\u8ff0\u6709\u95ee\u9898 \u8fd8\u4ee5\u4e3a grep awk \u4e5f\u5728 bash shell \u7684\u8303\u7574 \u6211\u7684\u9505                                                            <\/div>\n<\/p><\/div>\n<\/li>\n<li>\n","protected":false},"excerpt":{"rendered":"<p>\u8bf7\u6559\u4e00\u4e2a Bash Shell \u4e2d&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/158872"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=158872"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/158872\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=158872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=158872"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=158872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}