linux - Bash：将文件中的特定内容行移动到文件顶部

Question

我正在制作一个脚本（在 vim 中），它通过一个文件并查找特定的行。如果该行匹配，我希望将其移至文件顶部。

该文件看起来像这样：

6596628c9cbab49b80d6a07d0304377768f5114e7f8b21edffa820aab1c508be, ./favicon.ico
150a04dd76f733e5ef05ece49de115d05f71efa8e73025e015dd4e0fb3217553, ./about.php
28acfc4b0d378c22a2c0e4913cae3d15aef9b21938de81be92f74aef85b0cc0e, ./info.php
67976bbbd1b62a00d454da3a9f95e72d97d0fd156d4c65a12707f2602cbea582, ./missing.php
6ed318718f4cc617c82121db7cde54188eac6f89c355f0bfe9d198218de7fffc, ./browse.php
abd277cc3453be980bb48cbffe9d1f7422ca1ef4bc0b7d035fda87cea4d55cbc, ./composer.phar
73ac79eccac12120dc601cd6cce1282a1d8a920d440d3d1141d257db1ed4b0f0, ./search.php
f412aabd74f4c99bd32c5e534132c565f52c2bd32fbf7f629eb5a4495ac46351, ./index.php
c2d49a4873088fbe635d8653494f7f1425b6ad9f55d63ee4de52170d8a8d01b8, ./content/style.css
18e7d61367d80bc125b309ac002bb3946c5e7ba419ef59537afc939eff799dfd, ./content/logo.png
d8da15f62d55641320f7e7c21d9be86db6d81f7667bbd35c738b4c917cad3ce9, ./robots.txt

我如何能够将第 8 行（index.php）上的内容移动到顶部，所以它看起来像这样：

f412aabd74f4c99bd32c5e534132c565f52c2bd32fbf7f629eb5a4495ac46351, ./index.php
6596628c9cbab49b80d6a07d0304377768f5114e7f8b21edffa820aab1c508be, ./favicon.ico
150a04dd76f733e5ef05ece49de115d05f71efa8e73025e015dd4e0fb3217553, ./about.php
28acfc4b0d378c22a2c0e4913cae3d15aef9b21938de81be92f74aef85b0cc0e, ./info.php
67976bbbd1b62a00d454da3a9f95e72d97d0fd156d4c65a12707f2602cbea582, ./missing.php
6ed318718f4cc617c82121db7cde54188eac6f89c355f0bfe9d198218de7fffc, ./browse.php
abd277cc3453be980bb48cbffe9d1f7422ca1ef4bc0b7d035fda87cea4d55cbc, ./composer.phar
73ac79eccac12120dc601cd6cce1282a1d8a920d440d3d1141d257db1ed4b0f0, ./search.php
c2d49a4873088fbe635d8653494f7f1425b6ad9f55d63ee4de52170d8a8d01b8, ./content/style.css
18e7d61367d80bc125b309ac002bb3946c5e7ba419ef59537afc939eff799dfd, ./content/logo.png
d8da15f62d55641320f7e7c21d9be86db6d81f7667bbd35c738b4c917cad3ce9, ./robots.txt

（该文件包含大约 9000 行）

怎样才能最有效地做到这一点？

标签： linuxbashshellawksed

Answer 1

使用ed，这也将进行就地编辑：

printf '8m0\nwq\n' | ed -s ip.txt -

或者，如果您不知道行号：

printf '/index\.php/m0\nwq\n' | ed -s ip.txt -