{"id":2477,"date":"2025-05-14T14:47:45","date_gmt":"2025-05-14T06:47:45","guid":{"rendered":"https:\/\/thereisno.top\/?p=2477"},"modified":"2025-05-14T14:47:45","modified_gmt":"2025-05-14T06:47:45","slug":"bash-zsh-awk%e5%ad%97%e7%ac%a6%e4%b8%b2%e5%88%86%e5%89%b2","status":"publish","type":"post","link":"https:\/\/thereisno.top\/?p=2477","title":{"rendered":"bash zsh awk\u5b57\u7b26\u4e32\u5206\u5272"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>fl.txt\u6587\u4ef6\n12\n34\n56\n78\n\n\nBash\n\n1\u3001IFS\u5b9a\u4e49\u5206\u9694\u7b26,\u9ed8\u8ba4\u7a7a\u683c\u3001tab\u3001\u6362\u884c\u3001\u56de\u8f66\n\nbash-3.2$ a=\"a b c d\"\nbash-3.2$ for i in $a;\n> do\n> echo $i\",\"\n> done\na,\nb,\nc,\nd,\n\nbash-3.2$ b=`sed 'r\/g' fl.txt`\nbash-3.2$ for i in $b; do echo $i\",\"; done\n12,\n34,\n56,\n78,\n\na=\"a,b,c,d\"\n#\u6362\u884c\u7b26\u5206\u5272\nIFS=$'\\n'\n\nbash-3.2$ a=\"a,b,c,d\"\nbash-3.2$ for i in $a;\n> do \n> echo $i;\n> done\na,b,c,d\n\n\u8bbe\u7f6e\u5206\u9694\u7b26\u4e3a\u9017\u53f7\nbash-3.2$ IFS=$','\nbash-3.2$ for i in $a; do  echo $i; done\na\nb\nc\nd\n\n2\u3001\u4f7f\u7528\u5206\u5272\u7b26\u751f\u6210\u6570\u7ec4\nbash-3.2$ aa=\"hello,shell,split,test\"\nbash-3.2$ array=(${aa\/\/,\/})\nbash-3.2$ for i in ${array&#91;@]}\n> do\n> echo $i\n> done\nHelloshellsplittest\n\nbash-3.2$ array=(${aa\/\\n\/,\/})\nbash-3.2$ for i in ${array&#91;@]}; do echo $i; done\nhello\nshell\nsplit\nTest\n\nbash-3.2$ echo ${array&#91;0]}\nhello\nbash-3.2$ echo ${array&#91;1]}\nShell\n\n\nZsh \nZsh \u4e0d\u4f1a\u9ed8\u8ba4\u4f7f\u7528\u7a7a\u683c\u3001tab\u3001\u6362\u884c\u3001\u56de\u8f66\u5206\u5272\n\n1\u3001(f)\u6309\u884c\u5206\u5272\n\nstr=$(&lt;fl.txt)\n\n% echo $str\n12 \n34 \n56 \n78\n\nfor i (${(f)str}){\necho $i\"#\"\n}\n12#\n34# \n56# \n78#\n\n\u6ce8\u610f\uff0c\u5199\u5728\u4e00\u8d77\u8fd9\u6837\u4e0d\u884c\nfor i (${(f)$(&lt;fl.txt)});\ndo \necho $i\",\";\ndone\n12 34 56 78#\n\n\u76f4\u63a5\u8f93\u51fa\u548c\u4f7f\u7528\u53d8\u91cf\u884c\u4e3a\u4e0d\u4e00\u81f4\necho $(&lt;fl.txt)\n12 34 56 78\naa=$(&lt;fl.txt)\necho $aa\n12\n34\n56\n78\n\n\n\u9700\u8981\u4f7f\u7528(s:chr:)\u65b9\u5f0f\nfor i (${(s: :)$(&lt;fl.txt)});\ndo \necho $i\",\";\ndone\n\n\n\u6216\u8005\u4f7f\u7528sed\u8bfb\u53d6\naa=`sed 'r\/g' fl.txt`;\nfor i (${(f)aa});\ndo \necho $i\",\";\nDone\n\n\n\n2\u3001(s:chr:)\n\ns='foo,bar,baz'\n#\u4ec5s\u4e5f\u53ef\uff0c\u89c1\u8fc7p w @\uff0c\uff1a\u53ef\u4ee5\u7528\u5176\u4ed6\u7b26\u53f7\u4ee3\u66ff\nfor i  in ${(ps:,:)s} ; do   \necho \"$i END\"\ndone\nfoo END\nbar END\nbaz END\n\n\nawk\n\nbash-3.2$ aa=`awk '{print $1}' fl.txt`\nbash-3.2$ for i in $aa\n> do\n> echo $i\n> done\n12\n34\n56\n78\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16,41],"tags":[261,258,259,260],"class_list":["post-2477","post","type-post","status-publish","format-standard","hentry","category-linux","category-macos","tag-awk","tag-bash","tag-sh","tag-zsh"],"_links":{"self":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts\/2477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2477"}],"version-history":[{"count":1,"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts\/2477\/revisions"}],"predecessor-version":[{"id":2478,"href":"https:\/\/thereisno.top\/index.php?rest_route=\/wp\/v2\/posts\/2477\/revisions\/2478"}],"wp:attachment":[{"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thereisno.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}