more

语法

more [options] file

more是一个过滤器，用于一次一屏的对文本进行分页。不过它是一个较古老的版本，我们其实知道less提拱了更多扩展。

参数

• -d 用“[按空格键继续，'q'退出]”提示，并显示“[按h'获取说明]”，而不是在按下非法键时蜂鸣器报警。

• -l 不要在任何包含^L（表单源）的行之后暂停。

• -f 计算逻辑线，而不是屏幕线（即，长线不折叠）。

• -p 不要滚动。相反，清除整个屏幕，然后显示文本。注意，如果可执行文件名为page，则此选项将自动打开。

• -c 不要滚动。相反，从顶部绘制每个屏幕，清除显示的每一行的剩余部分。

• -s 将多个空行合并成一行。

• -u 抑制下划线。

• -number 使用的屏幕为大小，显示到行号数处。

• +number 从行号数开始显示一屏。

• +/string string在开始显示之前在每个文件中搜索字符串。

• --hlep 显示帮助文档

• -V | --version 显示版本

Example

• more -d LICENCE

  Apache License
  Version 2.0, January 2004
  http://www.apache.org/licenses/
  
  TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
  
  1. Definitions.
  
  "License" shall mean the terms and conditions for use, reproduction,
  and distribution as defined by Sections 1 through 9 of this document.
  
  "Licensor" shall mean the copyright owner or entity authorized by
  the copyright owner that is granting the License.
  
  "Legal Entity" shall mean the union of the acting entity and all
  other entities that control, are controlled by, or are under common
  control with that entity. For the purposes of this definition,
  "control" means (i) the power, direct or indirect, to cause the
  direction or management of such entity, whether by contract or
  otherwise, or (ii) ownership of fifty percent (50%) or more of the
  outstanding shares, or (iii) beneficial ownership of such entity.
  
  "You" (or "Your") shall mean an individual or Legal Entity
  exercising permissions granted by this License.
  
  "Source" form shall mean the preferred form for making modifications,
  including but not limited to software source code, documentation
  source, and configuration files.
  
  "Object" form shall mean any form resulting from mechanical
  transformation or translation of a Source form, including but
  not limited to compiled object code, generated documentation,
  and conversions to other media types.
  
  "Work" shall mean the work of authorship, whether in Source or
  Object form, made available under the License, as indicated by a
  copyright notice that is included in or attached to the work
  (an example is provided in the Appendix below).
  
  "Derivative Works" shall mean any work, whether in Source or Object
  form, that is based on (or derived from) the Work and for which the
  editorial revisions, annotations, elaborations, or other modifications
  represent, as a whole, an original work of authorship. For the purposes
  of this License, Derivative Works shall not include works that remain
  separable from, or merely link (or bind by name) to the interfaces of,
  the Work and Derivative Works thereof.
  --More--(20%)[Press space to continue, 'q' to quit.]
  

• more -l LICENSE

  
                                   Apache License
                             Version 2.0, January 2004
                          http://www.apache.org/licenses/
  
     TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
  
     1. Definitions.
  
        "License" shall mean the terms and conditions for use, reproduction,
        and distribution as defined by Sections 1 through 9 of this document.
  
        "Licensor" shall mean the copyright owner or entity authorized by
        the copyright owner that is granting the License.
  
        "Legal Entity" shall mean the union of the acting entity and all
        other entities that control, are controlled by, or are under common
        control with that entity. For the purposes of this definition,
        "control" means (i) the power, direct or indirect, to cause the
        direction or management of such entity, whether by contract or
        otherwise, or (ii) ownership of fifty percent (50%) or more of the
        outstanding shares, or (iii) beneficial ownership of such entity.
  
        "You" (or "Your") shall mean an individual or Legal Entity
        exercising permissions granted by this License.
  
        "Source" form shall mean the preferred form for making modifications,
        including but not limited to software source code, documentation
        source, and configuration files.
  
        "Object" form shall mean any form resulting from mechanical
        transformation or translation of a Source form, including but
        not limited to compiled object code, generated documentation,
        and conversions to other media types.
  
        "Work" shall mean the work of authorship, whether in Source or
        Object form, made available under the License, as indicated by a
        copyright notice that is included in or attached to the work
        (an example is provided in the Appendix below).
  
        "Derivative Works" shall mean any work, whether in Source or Object
        form, that is based on (or derived from) the Work and for which the
        editorial revisions, annotations, elaborations, or other modifications
        represent, as a whole, an original work of authorship. For the purposes
        of this License, Derivative Works shall not include works that remain
        separable from, or merely link (or bind by name) to the interfaces of,
        the Work and Derivative Works thereof.
  --More--(20%)
  

• more -100 LINCESE

  显示到100行的位置。

  "Contributor" shall mean Licensor and any individual or Legal Entity
  on behalf of whom a Contribution has been received by Licensor and
  subsequently incorporated within the Work.
  
  2. Grant of Copyright License. Subject to the terms and conditions of
  this License, each Contributor hereby grants to You a perpetual,
  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
  copyright license to reproduce, prepare Derivative Works of,
  publicly display, publicly perform, sublicense, and distribute the
  Work and such Derivative Works in Source or Object form.
  
  3. Grant of Patent License. Subject to the terms and conditions of
  this License, each Contributor hereby grants to You a perpetual,
  worldwide, non-exclusive, no-charge, royalty-free, irrevocable
  (except as stated in this section) patent license to make, have made,
  use, offer to sell, sell, import, and otherwise transfer the Work,
  where such license applies only to those patent claims licensable
  by such Contributor that are necessarily infringed by their
  Contribution(s) alone or by combination of their Contribution(s)
  with the Work to which such Contribution(s) was submitted. If You
  institute patent litigation against any entity (including a
  cross-claim or counterclaim in a lawsuit) alleging that the Work
  or a Contribution incorporated within the Work constitutes direct
  or contributory patent infringement, then any patent licenses
  granted to You under this License for that Work shall terminate
  as of the date such litigation is filed.
  
  4. Redistribution. You may reproduce and distribute copies of the
  Work or Derivative Works thereof in any medium, with or without
  modifications, and in Source or Object form, provided that You
  meet the following conditions:
  
  (a) You must give any other recipients of the Work or
      Derivative Works a copy of this License; and
  
  (b) You must cause any modified files to carry prominent notices
      stating that You changed the files; and
  
  --More--(47%)
  

• more +100 LINCESE

  从100行的位置开始显示内容。

  (c) You must retain, in the Source form of any Derivative Works
      that You distribute, all copyright, patent, trademark, and
      attribution notices from the Source form of the Work,
      excluding those notices that do not pertain to any part of
      the Derivative Works; and
  
  (d) If the Work includes a "NOTICE" text file as part of its
      distribution, then any Derivative Works that You distribute must
      include a readable copy of the attribution notices contained
      within such NOTICE file, excluding those notices that do not
      pertain to any part of the Derivative Works, in at least one
      of the following places: within a NOTICE text file distributed
      as part of the Derivative Works; within the Source form or
      documentation, if provided along with the Derivative Works; or,
      within a display generated by the Derivative Works, if and
      wherever such third-party notices normally appear. The contents
      of the NOTICE file are for informational purposes only and
      do not modify the License. You may add Your own attribution
      notices within Derivative Works that You distribute, alongside
      or as an addendum to the NOTICE text from the Work, provided
      that such additional attribution notices cannot be construed
      as modifying the License.
  
  You may add Your own copyright statement to Your modifications and
  may provide additional or different license terms and conditions
  for use, reproduction, or distribution of Your modifications, or
  for any such Derivative Works as a whole, provided Your use,
  reproduction, and distribution of the Work otherwise complies with
  the conditions stated in this License.
  
  5. Submission of Contributions. Unless You explicitly state otherwise,
  any Contribution intentionally submitted for inclusion in the Work
  by You to the Licensor shall be under the terms and conditions of
  this License, without any additional terms or conditions.
  Notwithstanding the above, nothing herein shall supersede or modify
  the terms of any separate license agreement you may have executed
  with Licensor regarding such Contributions.
  
  6. Trademarks. This License does not grant permission to use the trade
  names, trademarks, service marks, or product names of the Licensor,
  except as required for reasonable and customary use in describing the
  origin of the Work and reproducing the content of the NOTICE file.
  
  7. Disclaimer of Warranty. Unless required by applicable law or
  agreed to in writing, Licensor provides the Work (and each
  Contributor provides its Contributions) on an "AS IS" BASIS,
  --More--(72%)
  

• more +/END LICENSE-2.0.txt

  跳转到包含END所在的页。

  root@50d4ca255e33:/# more +/END LICENSE-2.0.txt
  
  ...skipping
        of your accepting any such warranty or additional liability.
  
     END OF TERMS AND CONDITIONS
  
     APPENDIX: How to apply the Apache License to your work.
  
        To apply the Apache License to your work, attach the following
        boilerplate notice, with the fields enclosed by brackets "[]"
        replaced with your own identifying information. (Don't include
        the brackets!)  The text should be enclosed in the appropriate
        comment syntax for the file format. We also recommend that a
        file or class name and description of purpose be included on the
        same "printed page" as the copyright notice for easier
        identification within third-party archives.
  
     Copyright [yyyy] [name of copyright owner]
  
     Licensed under the Apache License, Version 2.0 (the "License");
     you may not use this file except in compliance with the License.
     You may obtain a copy of the License at
  
         http://www.apache.org/licenses/LICENSE-2.0
  
     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
  

• more -s test.txt

  挤兑空行，这里2-6行添加了4个空格，8-10行添加了空行。使用-s 8，9，10合并为一行，效果如下：

  root@50d4ca255e33:/# echo "line1" >> test.txt
  root@50d4ca255e33:/# echo "    " >> test.txt
  ...
  root@50d4ca255e33:/# echo "line7" >> test.txt
  root@50d4ca255e33:/# echo "" >> test.txt
  ...
  root@50d4ca255e33:/# echo "line11" >> test.txt
  root@50d4ca255e33:/# cat test.txt
  line1
  
  
  
  
  
  line7
  
  
  
  
  line11
  root@50d4ca255e33:/# more -s test.txt
  line1
  
  
  
  
  
  line7
  
  line11
  root@50d4ca255e33:/#
  

• more --version

  看下版本信息，我这里用了自建ubuntu的docker镜像。Dockerfile这里查看

  root@50d4ca255e33:/# more --version
  more from util-linux 2.31.1