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按架构过滤债务标签搜索

tag-icon • tag-icon debian multiarch
按架构过滤债务标签搜索

我有multiarch启用，当我运行时debtags search，我得到很多重复的结果。

$ debtags search 'works-with-format::man' | head
docbook-to-man - converter from DocBook SGML into roff man macros
docbook-to-man:i386 - converter from DocBook SGML into roff man macros
docbook-utils - Convert DocBook files to other formats (HTML, RTF, PS, man, PDF)
docbook2x - Converts DocBook/XML documents into man pages and TeXinfo
docbook2x:i386 - Converts DocBook/XML documents into man pages and TeXinfo
doclifter - Convert troff to DocBook
dwww - Read all on-line documentation with a WWW browser
dwww:i386 - Read all on-line documentation with a WWW browser
ebook-speaker - eBook reader that reads aloud in a synthetic voice
ebook-speaker:i386 - eBook reader that reads aloud in a synthetic voice

有一个解决方法，使用grep：

$ debtags search 'works-with-format::man' | grep -v ':i386 - ' | head
docbook-to-man - converter from DocBook SGML into roff man macros
docbook-utils - Convert DocBook files to other formats (HTML, RTF, PS, man, PDF)
docbook2x - Converts DocBook/XML documents into man pages and TeXinfo
doclifter - Convert troff to DocBook
dwww - Read all on-line documentation with a WWW browser
ebook-speaker - eBook reader that reads aloud in a synthetic voice
git-man - fast, scalable, distributed revision control system (manual pages)
gman - small man(1) front-end for X
gmanedit - GTK+ man pages editor
gnulib - GNU Portability Library

这假设该字符串:i386 -没有出现在任何包描述中，这有点黑客行为。有没有更好的办法？

答案1

debtags search 'works-with-format::man' | awk 'BEGIN { FS="[: ]" }  ! ($1 in seen) { print; seen[$1]=1 }'

这将记住看到的包（在seen数组的索引中），无论架构如何（因此使用空格和:分隔符），并且如果已经看到则不会再次打印它们。因此，它还将显示仅存在于 i386 中而不存在于默认 (amd64) 体系结构中的包（例如：zsnes:i386标记为hardware::emulation不存在zsnes(ie zsnes:amd64)）。因为没有显示显式架构的包首先出现（在债务标签预排序算法中......），所以除非需要，否则无需担心显示额外的内容:i386。

更新：如所希望的，将独立脚本文件中的相同 awk 脚本放入 /usr/local/bin/debtagsfilter 并包含此内容

#!/usr/bin/awk -f
BEGIN           {
                        FS="[: ]"
                }
! ($1 in seen)  {
                        print
                        seen[$1]=1
                }

并通过 ( ) 使其可执行，chmod a+rx /usr/local/bin/filterdebtags例如可以用于：debtags search 'works-with-format::man' | filterdebtags

或者，如果首选债务标签的“新”版本/usr/local/bin/debtagswithfilter（从而回退到sh调用的脚本语言）：

#!/bin/sh
debtags "$@" | awk '
BEGIN           {
                        FS="[: ]"
                }
! ($1 in seen)  {
                        print
                        seen[$1]=1
                }
'

比较（我得到普通的双精度数，可能是因为多个存储库源）：

$ debtags search 'hardware::emulation'

[...]

xtrs - emulator for TRS-80 Model I/III/4/4P computers
xtrs:i386 - emulator for TRS-80 Model I/III/4/4P computers
yabause - beautiful and under-rated Saturn emulator
yabause - beautiful and under-rated Saturn emulator
yabause-gtk - beautiful and under-rated Saturn emulator - Gtk port
yabause-gtk - beautiful and under-rated Saturn emulator - Gtk port
yabause-gtk:i386 - beautiful and under-rated Saturn emulator - Gtk port
yabause-gtk:i386 - beautiful and under-rated Saturn emulator - Gtk port
yabause-qt - beautiful and under-rated Saturn emulator - Qt port
yabause-qt - beautiful and under-rated Saturn emulator - Qt port
yabause-qt:i386 - beautiful and under-rated Saturn emulator - Qt port
yabause-qt:i386 - beautiful and under-rated Saturn emulator - Qt port
zsnes:i386 - Emulator of the Super Nintendo Entertainment System

和：

$ debtagswithfilter search 'hardware::emulation'

[...]

xtrs - emulator for TRS-80 Model I/III/4/4P computers
yabause - beautiful and under-rated Saturn emulator
yabause-gtk - beautiful and under-rated Saturn emulator - Gtk port
yabause-qt - beautiful and under-rated Saturn emulator - Qt port
zsnes:i386 - Emulator of the Super Nintendo Entertainment System

它也适用于更复杂的搜索请求：

$ debtagswithfilter search 'works-with-format::tex && interface::text-mode'
asymptote - script-based vector graphics language inspired by MetaPost
auctex - integrated document editing environment for TeX etc.
axiom-tex - General purpose computer algebra system: style file for TeX
bibcursed - Interactive program to edit BibTeX bibliographies
chktex - Finds typographic errors in LaTeX
fweb - literate-programming tool for C/C++/Fortran/Ratfor
groff - GNU troff text-formatting system
vim-latexsuite - view, edit and compile LaTeX documents from within Vim
yatex - Yet Another TeX mode for Emacs

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