On 07/09/2018 02:51 PM, home user via users wrote: > A. background: > Consider this sequence of dnf commands... > --------------- > bash.32[~]: dnf provides Xeyes > Last metadata expiration check: 13 days, 6:37:31 ago on Tue 26 Jun 2018 09:03:52 AM MDT. > Error: No Matches found > bash.33[~]: dnf provides x_eyes > Last metadata expiration check: 13 days, 6:38:00 ago on Tue 26 Jun 2018 09:03:52 AM MDT. > Error: No Matches found > bash.34[~]: dnf search --all xeyes > Last metadata expiration check: 13 days, 6:38:21 ago on Tue 26 Jun 2018 09:03:52 AM MDT. > No matches found. > bash.35[~]: dnf provides xeyes > Last metadata expiration check: 13 days, 6:38:29 ago on Tue 26 Jun 2018 09:03:52 AM MDT. > xorg-x11-apps-7.7-18.fc27.x86_64 : X.Org X11 applications > Repo : @System > Matched from: > Provide : xeyes = 1.1.1 > > xorg-x11-apps-7.7-18.fc27.x86_64 : X.Org X11 applications > Repo : fedora > Matched from: > Provide : xeyes = 1.1.1 > > bash.36[~]: > --------------- > This is just to show that > 1. dnf's "provides" command is sensitive to case and special characters; the spelling must be exact. Well, yeah. If you're unsure you have to use wildcards. > 2. dnf's "search" command doesn't necessarily find something even when spelled correctly. Not true. "provides" looks for files. If you don't specify the path to the file you're interested in, of course it won't find it. Again, use wildcards. Example with partial filename: [root@prophead ~]# dnf whatprovides liblasem Last metadata expiration check: 2:44:58 ago on Mon 09 Jul 2018 12:43:02 PM PDT. Error: No Matches found Example with full path: [root@prophead ~]# dnf whatprovides /usr/lib64/liblasem-0.4.so.4.0.3 Last metadata expiration check: 2:45:16 ago on Mon 09 Jul 2018 12:43:02 PM PDT. lasem-0.4.3-8.fc28.x86_64 : A library for rendering SVG and Mathml, implementing a DOM like API Repo : @System Matched from: Filename : /usr/lib64/liblasem-0.4.so.4.0.3 lasem-0.4.3-8.fc28.x86_64 : A library for rendering SVG and Mathml, implementing a DOM like API Repo : fedora Matched from: Filename : /usr/lib64/liblasem-0.4.so.4.0.3 Example with wildcards: [root@prophead ~]# dnf whatprovides "*liblasem*" Last metadata expiration check: 2:48:29 ago on Mon 09 Jul 2018 12:43:02 PM PDT. lasem-0.4.3-8.fc28.x86_64 : A library for rendering SVG and Mathml, implementing a DOM like API Repo : @System Matched from: Provide : liblasem-0.4.so.4()(64bit) lasem-0.4.3-8.fc28.i686 : A library for rendering SVG and Mathml, implementing a DOM like API Repo : fedora Matched from: Provide : liblasem-0.4.so.4 lasem-0.4.3-8.fc28.x86_64 : A library for rendering SVG and Mathml, implementing a DOM like API Repo : fedora Matched from: Provide : liblasem-0.4.so.4()(64bit) lasem-devel-0.4.3-8.fc28.i686 : Development files for lasem Repo : fedora Matched from: Other : *liblasem* lasem-devel-0.4.3-8.fc28.x86_64 : Development files for lasem Repo : fedora Matched from: Other : *liblasem* Repos called "@System" means THAT RPM is already installed. > I already have "xeyes", the above is merely demonstration. > > B. the question: > If I want to find a tool, application, etc., and I don't know its exact spelling, and trying all case and special character possibilities is not practical, how do I search for it using dnf, so I can then install it (or discover that I already have it)? If you don't use wildcards, it will try to match EXACTLY what you specify--just like any command and as I demonstrated in the first two examples above. If you do use wildcards, you have to put the search string in quotes so the shell doesn't expand the wildcards first (this is something many people using ANY command forget--if you want to pass the wildcards to the command itself, quote them to keep the shell from expanding them!) You should also note that wildcard searches (as the third one above is) take MUCH longer as dnf has to do pattern matching on the filelists the RPMs provide. ---------------------------------------------------------------------- - Rick Stevens, Systems Engineer, AllDigital ricks@xxxxxxxxxxxxxx - - AIM/Skype: therps2 ICQ: 226437340 Yahoo: origrps2 - - - - 500: Internal Fortune Cookie Error - ---------------------------------------------------------------------- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx/message/VXUEFYD47PHFUIRPBZPW4BMGWKJUZ3JE/
