{"id":1531,"date":"2016-12-08T06:52:30","date_gmt":"2016-12-07T22:52:30","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1531"},"modified":"2025-01-06T19:40:59","modified_gmt":"2025-01-06T11:40:59","slug":"%e5%9c%a8-linux-%e4%b8%8b%e5%b0%86-png-%e5%92%8c-jpg-%e6%89%b9%e9%87%8f%e4%ba%92%e8%bd%ac%e7%9a%84%e5%9b%9b%e7%a7%8d%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/%e5%9c%a8-linux-%e4%b8%8b%e5%b0%86-png-%e5%92%8c-jpg-%e6%89%b9%e9%87%8f%e4%ba%92%e8%bd%ac%e7%9a%84%e5%9b%9b%e7%a7%8d%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u5728 Linux \u4e0b\u5c06 PNG \u548c JPG \u6279\u91cf\u4e92\u8f6c\u7684\u56db\u79cd\u65b9\u6cd5"},"content":{"rendered":"\n<p>\u8ba1\u7b97\u673a\u672f\u8bed\u4e2d\uff0c\u6279\u5904\u7406\u6307\u7684\u662f\u7528\u4e00\u4e2a\u975e\u4ea4\u4e92\u5f0f\u7684\u7a0b\u5e8f\u6765\u6267\u884c\u4e00\u5e8f\u5217\u7684\u4efb\u52a1\u7684\u65b9\u6cd5\u3002\u8fd9\u7bc7\u6559\u7a0b\u91cc\uff0c\u6211\u4eec\u4f1a\u4f7f\u7528 Linux \u547d\u4ee4\u884c\u5de5\u5177\uff0c\u5e76\u63d0\u4f9b 4 \u79cd\u7b80\u5355\u7684\u5904\u7406\u65b9\u5f0f\u6765\u628a\u4e00\u4e9b <code>.PNG<\/code> \u683c\u5f0f\u7684\u56fe\u50cf\u6279\u91cf\u8f6c\u6362\u6210 <code>.JPG<\/code> \u683c\u5f0f\u7684\uff0c\u4ee5\u53ca\u8f6c\u6362\u56de\u6765\u3002<\/p>\n\n\n\n<p>\u867d\u7136\u6240\u6709\u793a\u4f8b\u4e2d\u6211\u4eec\u4f7f\u7528\u7684\u90fd\u662f <code>convert<\/code> \u547d\u4ee4\u884c\u5de5\u5177\uff0c\u4f46\u662f\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528 <code>mogrify<\/code> \u547d\u4ee4\u6765\u8fbe\u5230\u540c\u6837\u7684\u6548\u679c\u3002<\/p>\n\n\n\n<p><code>convert<\/code>&nbsp;\u547d\u4ee4\u7684\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pln\">$ convert <\/span><span class=\"pun\">\u8f93\u5165\u9009\u9879<\/span> <span class=\"pun\">\u8f93\u5165\u6587\u4ef6<\/span> <span class=\"pun\">\u8f93\u51fa\u9009\u9879<\/span> <span class=\"pun\">\u8f93\u51fa\u6587\u4ef6<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<p>\u800c <code>mogrify<\/code> \u7684\u4e3a\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pln\">$ mogrify <\/span><span class=\"pun\">\u9009\u9879<\/span> <span class=\"pun\">\u8f93\u5165\u6587\u4ef6<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<p>\u6ce8\u610f\uff1a\u5728\u4f7f\u7528 <code>mogrify<\/code> \u547d\u4ee4\u65f6\uff0c\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u6e90\u56fe\u50cf\u6587\u4ef6\u4f1a\u88ab\u8f6c\u6362\u540e\u7684\u65b0\u6587\u4ef6\u8986\u76d6\u6389\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u660e\u786e\u7684\u64cd\u4f5c\u9009\u9879\u6765\u7981\u6b62\u8986\u76d6\uff0c\u5177\u4f53\u7684\u9009\u9879\u53ef\u4ee5\u5728\u624b\u518c\u9875\u4e2d\u67e5\u8be2\u5f97\u5230\u3002<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u628a\u6240\u6709 <code>.PNG<\/code> \u683c\u5f0f\u56fe\u50cf\u6279\u91cf\u8f6c\u6362\u4e3a <code>.JPG<\/code> \u683c\u5f0f\u7684\u5404\u79cd\u5b9e\u73b0\u65b9\u5f0f\u3002\u5982\u679c\u60f3\u628a <code>.JPG<\/code> \u8f6c\u6362\u4e3a <code>.PNG<\/code> \u683c\u5f0f\uff0c\u4e5f\u53ef\u4f7f\u7528\u8fd9\u4e9b\u547d\u4ee4\uff0c\u6309\u9700\u4fee\u6539\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"toc_1\">1\u3001 \u4f7f\u7528 <code>ls<\/code> \u548c <code>xargs<\/code> \u547d\u4ee4\u6765\u8f6c\u6362 PNG \u548c JPG<\/h3>\n\n\n\n<p>ls \u547d\u4ee4 \u53ef\u4ee5\u5217\u51fa\u6240\u6709\u7684 png \u56fe\u50cf\u6587\u4ef6\uff0c <code>xargs<\/code> \u4f7f\u5f97\u53ef\u4ee5\u4ece\u6807\u51c6\u8f93\u5165\u6784\u5efa\u548c\u6267\u884c <code>convert<\/code> \u547d\u4ee4\uff0c\u4ece\u800c\u5c06\u6240\u6709 <code>.png<\/code> \u56fe\u50cf\u8f6c\u6362\u4e3a <code>.jpg<\/code> \u56fe\u50cf\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">-----------<\/span> <\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">ls<\/span> <span class=\"pun\">-<\/span><span class=\"lit\">1<\/span> <span class=\"pun\">*.<\/span><span class=\"pln\">png <\/span><span class=\"pun\">|<\/span> <span class=\"kwd\">xargs<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">n <\/span><span class=\"lit\">1<\/span> <span class=\"kwd\">bash<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">'convert \"$0\" \"${0%.png}.jpg\"'<\/span><\/code><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">-----------<\/span> <\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">ls<\/span> <span class=\"pun\">-<\/span><span class=\"lit\">1<\/span> <span class=\"pun\">*.<\/span><span class=\"pln\">jpg <\/span><span class=\"pun\">|<\/span> <span class=\"kwd\">xargs<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">n <\/span><span class=\"lit\">1<\/span> <span class=\"kwd\">bash<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">'convert \"$0\" \"${0%.jpg}.png\"'<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<p>\u5173\u4e8e\u4e0a\u9762\u547d\u4ee4\u9009\u9879\u7684\u8bf4\u660e\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>-1<\/code>\u00a0\u2013 \u544a\u8bc9 ls \u6bcf\u884c\u5217\u51fa\u4e00\u4e2a\u56fe\u50cf\u540d\u79f0\u7684\u9009\u9879\u6807\u8bc6<\/li>\n\n\n\n<li><code>-n<\/code>\u00a0\u2013 \u6307\u5b9a\u6700\u591a\u53c2\u6570\u4e2a\u6570\uff0c\u4f8b\u5b50\u4e2d\u4e3a 1<\/li>\n\n\n\n<li><code>-c<\/code>\u00a0\u2013 \u6307\u793a bash \u8fd0\u884c\u7ed9\u5b9a\u7684\u547d\u4ee4<\/li>\n\n\n\n<li><code>${0%.png}.jpg<\/code>\u00a0\u2013 \u8bbe\u7f6e\u65b0\u8f6c\u6362\u7684\u56fe\u50cf\u6587\u4ef6\u7684\u540d\u5b57\uff0c<code>%<\/code> \u7b26\u53f7\u7528\u6765\u5220\u9664\u6e90\u6587\u4ef6\u7684\u6269\u5c55\u540d<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l.png\"><img loading=\"lazy\" decoding=\"async\" width=\"923\" height=\"483\" src=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l.png\" alt=\"\" class=\"wp-image-8948\" title=\"Linux \u4e2d PNG \u683c\u5f0f\u8f6c\u4e3a JPG \u683c\u5f0f\" srcset=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l.png 923w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l-300x157.png 300w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l-768x402.png 768w\" sizes=\"auto, (max-width: 923px) 100vw, 923px\" \/><\/a><\/figure>\n\n\n\n<p class=\"article_img\"><a class=\"ext\" href=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2016\/11\/Convert-PNG-to-JPG-in-Linux.png\" target=\"_blank\" rel=\"external nofollow noopener\">  <\/a><\/p>\n\n\n\n<p class=\"article_img_desc\"><em>Linux \u4e2d PNG \u683c\u5f0f\u8f6c\u4e3a JPG \u683c\u5f0f<\/em><\/p>\n\n\n\n<p>\u6211\u4f7f\u7528 \u00a0<code>ls -ltr<\/code> \u547d\u4ee4\u6309\u4fee\u6539\u7684\u65e5\u671f\u548c\u65f6\u95f4\u5217\u51fa\u6240\u6709\u6587\u4ef6\u3002<\/p>\n\n\n\n<p>\u7c7b\u4f3c\u7684\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u4e0a\u9762\u7684\u547d\u4ee4\u8981\u628a <code>.JPG<\/code>&nbsp;\u56fe\u50cf\u8f6c\u6362\u4e3a <code>.PNG<\/code>&nbsp;\u683c\u5f0f\uff0c\u53ea\u9700\u7a0d\u5fae\u8c03\u6574\u5c31\u884c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"toc_2\">2\u3001 \u4f7f\u7528 GNU \u7684 <code>parallel<\/code> \u547d\u4ee4\u6765\u8f6c\u6362 PNG \u548c JPG<\/h3>\n\n\n\n<p>GNU \u7684 parallel \u4f7f\u7528\u6237\u80fd\u591f\u4ece\u6807\u51c6\u8f93\u5165\u5e76\u884c\u6784\u5efa\u548c\u6267\u884c shell \u547d\u4ee4\u3002\u786e\u4fdd\u60a8\u7684\u7cfb\u7edf\u4e0a\u5b89\u88c5\u4e86 GNU Parallel\uff0c\u5426\u5219\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u9002\u5f53\u7684\u547d\u4ee4\u8fdb\u884c\u5b89\u88c5\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">sudo<\/span> <span class=\"kwd\">apt-get<\/span><span class=\"pln\"> install parallel <\/span><span class=\"pun\">[\u5728<\/span> <span class=\"typ\">Debian<\/span><span class=\"pun\">\/<\/span><span class=\"typ\">Ubuntu<\/span> <span class=\"pun\">\u7cfb\u7edf\u4e2d]<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">sudo<\/span> <span class=\"kwd\">yum<\/span><span class=\"pln\"> install parallel <\/span><span class=\"pun\">[\u5728<\/span><span class=\"pln\"> RHEL<\/span><span class=\"pun\">\/<\/span><span class=\"typ\">CentOS<\/span> <span class=\"pun\">\u548c<\/span> <span class=\"typ\">Fedora<\/span> <span class=\"pun\">\u7cfb\u7edf\u4e2d]<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<p>\u5b89\u88c5\u597d <code>parallel<\/code> \u5de5\u5177\u540e\uff0c\u60a8\u5c31\u53ef\u4ee5\u8fd0\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u6765\u628a\u6240\u6709\u4ece\u6807\u51c6\u8f93\u5165\u7684 <code>.PNG<\/code>&nbsp;\u56fe\u50cf\u8f6c\u6362\u6210 <code>.JPG<\/code>&nbsp;\u683c\u5f0f\u7684\u56fe\u50cf\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">-----------<\/span> <\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ parallel convert <\/span><span class=\"str\">'{}'<\/span> <span class=\"str\">'{.}.jpg'<\/span> <span class=\"pun\">:::<\/span> <span class=\"pun\">*.<\/span><span class=\"pln\">png<\/span><\/code><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">-----------<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ parallel convert <\/span><span class=\"str\">'{}'<\/span> <span class=\"str\">'{.}.png'<\/span> <span class=\"pun\">:::<\/span> <span class=\"pun\">*.<\/span><span class=\"pln\">jpg<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<p>\u5176\u4e2d\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>{}<\/code>\u00a0\u2013 \u8f93\u5165\u884c\u66ff\u4ee3\u7b26\uff0c\u4ee3\u66ff\u4e86\u4ece\u8f93\u5165\u6e90\u8bfb\u53d6\u7684\u5b8c\u6574\u884c\u3002<\/li>\n\n\n\n<li><code>{.}<\/code>\u00a0\u2013 \u53bb\u9664\u6269\u5c55\u540d\u7684\u8f93\u5165\u884c\u3002<\/li>\n\n\n\n<li><code>:::<\/code>\u00a0\u2013 \u6307\u5b9a\u8f93\u5165\u6e90\u7684\u7b26\u53f7\uff0c\u5373\u4e0a\u9762\u793a\u4f8b\u7684\u547d\u4ee4\u884c\uff0c\u5728\u8fd9\u91cc <em>png \u6216 jpg<\/em> \u662f\u547d\u4ee4\u53c2\u6570\u3002<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l-png.png\"><img loading=\"lazy\" decoding=\"async\" width=\"933\" height=\"619\" src=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l-png.png\" alt=\"\" class=\"wp-image-8949\" title=\"Parallel \u547d\u4ee4 \u2013 \u628a\u6240\u6709 PNG \u56fe\u50cf\u8f6c\u6362\u4e3a JPG \u683c\u5f0f\" srcset=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l-png.png 933w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l-png-300x199.png 300w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/ls-l-png-768x510.png 768w\" sizes=\"auto, (max-width: 933px) 100vw, 933px\" \/><\/a><\/figure>\n\n\n\n<p class=\"article_img\"><a class=\"ext\" href=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2016\/11\/Convert-PNG-to-JPG-Using-Parallel-Command.png\" target=\"_blank\" rel=\"external nofollow noopener\">  <\/a><\/p>\n\n\n\n<p class=\"article_img_desc\"><em>Parallel \u547d\u4ee4 \u2013 \u628a\u6240\u6709 PNG \u56fe\u50cf\u8f6c\u6362\u4e3a JPG \u683c\u5f0f<\/em><\/p>\n\n\n\n<p>\u6216\u8005\uff0c\u60a8\u4e5f\u53ef\u4ee5\u7ed3\u5408 ls \u548c <code>parallel<\/code> \u547d\u4ee4\u6765\u6279\u91cf\u8f6c\u6362\u6240\u6709\u56fe\u50cf\uff0c\u5982\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">-----------<\/span> <\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">ls<\/span> <span class=\"pun\">-<\/span><span class=\"lit\">1<\/span> <span class=\"pun\">*.<\/span><span class=\"pln\">png <\/span><span class=\"pun\">|<\/span><span class=\"pln\"> parallel convert <\/span><span class=\"str\">'{}'<\/span> <span class=\"str\">'{.}.jpg'<\/span><\/code><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">-----------<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">ls<\/span> <span class=\"pun\">-<\/span><span class=\"lit\">1<\/span> <span class=\"pun\">*.<\/span><span class=\"pln\">jpg <\/span><span class=\"pun\">|<\/span><span class=\"pln\"> parallel convert <\/span><span class=\"str\">'{}'<\/span> <span class=\"str\">'{.}.png'<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"toc_3\">3\u3001 \u4f7f\u7528 <code>for<\/code> \u5faa\u73af\u547d\u4ee4\u6765\u8f6c\u6362 PNG \u548c JPG<\/h3>\n\n\n\n<p>\u4e3a\u4e86\u907f\u514d\u7f16\u5199 shell \u811a\u672c\u7684\u7e41\u7410\uff0c\u4f60\u53ef\u4ee5\u4ece\u547d\u4ee4\u884c\u6267\u884c <code>for<\/code> \u5faa\u73af\u8bed\u53e5\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">-----------<\/span> <\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">bash<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">'for image in *.png; do convert \"$image\" \"${image%.png}.jpg\"; echo \u201cimage $image converted to ${image%.png}.jpg \u201d; done'<\/span><\/code><\/li>\n\n\n\n<li><\/li>\n\n\n\n<li><code><span class=\"pun\">-----------<\/span> <span class=\"pun\">\u4ece<\/span><span class=\"pln\"> JPG <\/span><span class=\"pun\">\u8f6c\u6362\u5230<\/span><span class=\"pln\"> PNG <\/span><span class=\"pun\">-----------<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">bash<\/span> <span class=\"pun\">-<\/span><span class=\"pln\">c <\/span><span class=\"str\">'for image in *.jpg; do convert \"$image\" \"${image%.jpg}.png\"; echo \u201cimage $image converted to ${image%.jpg}.png \u201d; done'<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<p>\u5bf9\u4e0a\u9762\u7684\u547d\u4ee4\u6240\u4f7f\u7528\u7684\u9009\u9879\u53c2\u6570\u7684\u63cf\u8ff0\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><code>-c<\/code>\u00a0\u5141\u8bb8\u6267\u884c\u5305\u62ec\u5728\u5355\u5f15\u53f7\u4e2d\u7684\u5faa\u73af\u8bed\u53e5\u3002<\/li>\n\n\n\n<li><code>image<\/code> \u53d8\u91cf\u662f\u76ee\u5f55\u4e2d\u7684\u56fe\u50cf\u540d\u7684\u6570\u91cf\u8bb0\u6570\u5668\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e\u6bcf\u4e2a\u8f6c\u6362\u64cd\u4f5c\uff0c\u5728 <code>$image<\/code>\u00a0\u8f6c\u6362\u4e3a\u00a0<code>${image%.png}.jpg<\/code> \u8fd9\u884c\u4e2d\uff0cecho \u547d\u4ee4\u901a\u77e5\u7528\u6237 png \u56fe\u50cf\u5df2\u7ecf\u8f6c\u6362\u4e3a jpg \u683c\u5f0f\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/li>\n\n\n\n<li><code>${image%.png}.jpg<\/code> \u8bed\u53e5\u521b\u5efa\u4e86\u8f6c\u6362\u540e\u7684\u56fe\u50cf\u540d\u5b57\uff0c\u5176\u4e2d <code>%<\/code> \u8868\u793a\u53bb\u9664\u6e90\u56fe\u50cf\u6587\u4ef6\u7684\u6269\u5c55\u540d\u3002<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/echo.png\"><img loading=\"lazy\" decoding=\"async\" width=\"934\" height=\"660\" src=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/echo.png\" alt=\"\" class=\"wp-image-8950\" title=\"for \u5faa\u73af\u8bed\u53e5 \u2013 \u4ece PNG \u8f6c\u6362\u5230 JPG \u683c\u5f0f\" srcset=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/echo.png 934w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/echo-300x212.png 300w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/echo-768x543.png 768w\" sizes=\"auto, (max-width: 934px) 100vw, 934px\" \/><\/a><\/figure>\n\n\n\n<p class=\"article_img\"><a class=\"ext\" href=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2016\/11\/Convert-PNG-to-JPG-Using-for-loop-Command.png\" target=\"_blank\" rel=\"external nofollow noopener\">  <\/a><\/p>\n\n\n\n<p class=\"article_img_desc\"><em>for \u5faa\u73af\u8bed\u53e5 \u2013 \u4ece PNG \u8f6c\u6362\u5230 JPG \u683c\u5f0f<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"toc_4\">4\u3001 \u4f7f\u7528 Shell \u811a\u672c\u6765\u8f6c\u6362 PNG \u548c JPG<\/h3>\n\n\n\n<p>\u5982\u679c\u4f60\u4e0d\u60f3\u50cf\u524d\u9762\u7684\u4f8b\u5b50\u90a3\u6837\u8ba9\u4f60\u7684\u547d\u4ee4\u884c\u53d8\u5f97\u908b\u9062\u7684\u8bdd\uff0c\u53ef\u4ee5\u5199\u4e00\u4e2a\u5c0f\u811a\u672c\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<p>\u6ce8\u610f\uff1a\u9002\u5f53\u5730\u4ea4\u6362 <code>.png<\/code> \u548c <code>.jpg<\/code> \u6269\u5c55\u540d\uff0c\u5982\u4e0b\u9762\u7684\u4f8b\u5b50\u6240\u793a\uff0c\u4ece\u4e00\u79cd\u683c\u5f0f\u8f6c\u6362\u5230\u53e6\u4e00\u79cd\u683c\u5f0f\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"com\">#<\/span><span class=\"pun\">!<\/span><span class=\"str\">\/bin\/<\/span><span class=\"kwd\">bash<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"com\">#<\/span><span class=\"pln\">convert<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"kwd\">for<\/span><span class=\"pln\"> image <\/span><span class=\"kwd\">in<\/span> <span class=\"pun\">*.<\/span><span class=\"pln\">png<\/span><span class=\"pun\">;<\/span> <span class=\"kwd\">do<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"pln\"> convert <\/span><span class=\"str\">\"$image\"<\/span> <span class=\"str\">\"${image%.png}.jpg\"<\/span><\/code><\/li>\n\n\n\n<li><code> <span class=\"kwd\">echo<\/span> <span class=\"pun\">\u201c<\/span><span class=\"pln\">image $image converted to $<\/span><span class=\"pun\">{<\/span><span class=\"pln\">image<\/span><span class=\"pun\">%.<\/span><span class=\"pln\">png<\/span><span class=\"pun\">}.<\/span><span class=\"pln\">jpg <\/span><span class=\"pun\">\u201d<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"kwd\">done<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"kwd\">exit<\/span> <span class=\"lit\">0<\/span> <\/code><\/li>\n<\/ol>\n\n\n\n<p>\u628a\u4e0a\u9762\u7684\u811a\u672c\u4fdd\u5b58\u4e3a <code>convert.sh<\/code> \u6587\u4ef6\uff0c\u7136\u540e\u4f7f\u6b64\u811a\u672c\u6587\u4ef6\u53ef\u6267\u884c\uff0c\u63a5\u7740\u4ece\u5b58\u6709\u56fe\u50cf\u6587\u4ef6\u7684\u76ee\u5f55\u4e0b\u6267\u884c\u3002<\/p>\n\n\n\n<ol class=\"wp-block-list linenums\">\n<li><code><span class=\"pln\">$ <\/span><span class=\"kwd\">chmod<\/span> <span class=\"pun\">+<\/span><span class=\"pln\">x convert<\/span><span class=\"pun\">.<\/span><span class=\"pln\">sh<\/span><\/code><\/li>\n\n\n\n<li><code><span class=\"pln\">$ <\/span><span class=\"pun\">.\/<\/span><span class=\"pln\">convert<\/span><span class=\"pun\">.<\/span><span class=\"pln\">sh<\/span><\/code><\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/convertsh.png\"><img loading=\"lazy\" decoding=\"async\" width=\"934\" height=\"642\" src=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/convertsh.png\" alt=\"\" class=\"wp-image-8951\" title=\"\u4f7f\u7528 Shell \u811a\u672c\u6765\u6279\u91cf\u56fe\u50cf\u8f6c\u6362\" srcset=\"https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/convertsh.png 934w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/convertsh-300x206.png 300w, https:\/\/cn.hostease.com\/xueyuan\/wp-content\/uploads\/2016\/12\/convertsh-768x528.png 768w\" sizes=\"auto, (max-width: 934px) 100vw, 934px\" \/><\/a><\/figure>\n\n\n\n<p class=\"article_img\"><a class=\"ext\" href=\"https:\/\/www.tecmint.com\/wp-content\/uploads\/2016\/11\/Batch-Image-Convert-Using-Shell-Script.png\" target=\"_blank\" rel=\"external nofollow noopener\">  <\/a><\/p>\n\n\n\n<p class=\"article_img_desc\"><em>\u4f7f\u7528 Shell \u811a\u672c\u6765\u6279\u91cf\u56fe\u50cf\u8f6c\u6362<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8ba1\u7b97\u673a\u672f\u8bed\u4e2d\uff0c\u6279\u5904\u7406\u6307\u7684\u662f\u7528\u4e00\u4e2a\u975e\u4ea4\u4e92\u5f0f\u7684\u7a0b\u5e8f\u6765\u6267\u884c\u4e00\u5e8f\u5217\u7684\u4efb\u52a1\u7684\u65b9\u6cd5\u3002\u8fd9\u7bc7\u6559\u7a0b\u91cc\uff0c\u6211\u4eec\u4f1a\u4f7f\u7528 Linux \u547d &#8230; <a title=\"\u5728 Linux \u4e0b\u5c06 PNG \u548c JPG \u6279\u91cf\u4e92\u8f6c\u7684\u56db\u79cd\u65b9\u6cd5\" class=\"read-more\" href=\"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/%e5%9c%a8-linux-%e4%b8%8b%e5%b0%86-png-%e5%92%8c-jpg-%e6%89%b9%e9%87%8f%e4%ba%92%e8%bd%ac%e7%9a%84%e5%9b%9b%e7%a7%8d%e6%96%b9%e6%b3%95\/\" aria-label=\"\u9605\u8bfb \u5728 Linux \u4e0b\u5c06 PNG \u548c JPG \u6279\u91cf\u4e92\u8f6c\u7684\u56db\u79cd\u65b9\u6cd5\">\u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[38,489],"class_list":["post-1531","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux","tag-489"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1531","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=1531"}],"version-history":[{"count":2,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1531\/revisions"}],"predecessor-version":[{"id":8952,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1531\/revisions\/8952"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=1531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=1531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=1531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}