Piwigo gallery – fil­ter pho­tos by a ra­ting score in the Batch Ma­nager

If you are using the Piwigo web gallery and wish to fil­ter out pho­tos by a ra­ting score to per­form some batch ope­ration on them, you mi­ght find that sli­ghtly challen­ging. Even if you’re using the plu­gin Batch Ma­nager Pre­fil­ters, you don’t have any ob­vi­ous way to fil­ter the pho­tos by a ra­ting in the Batch Ma­nager. I’ve found two ways to work around that.

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How to chat on Fa­ce­book wi­thout the Mes­sen­ger app on An­droid

Ever since Fa­ce­book di­sa­bled the chat abi­lity on the mo­bile ver­sion of its web­site, it’s been a pro­blem for any­one who doesn’t wish to have Mes­sen­ger in­stalled on his or her An­droid smart­phone to use the Fa­ce­book chat. I gave up on the idea and just used the Mes­sen­ger on www​.mes​sen​ger​.com for a long time, but re­cently I found a way to use the Facebook’s mo­bile web­site with the chat the old way.
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How to fix scan­ner pro­blem on Ubuntu 18.04 with HP La­serJet Pro MFP M125nw prin­ter

Af­ter do­ing a clean in­stall of Ubuntu 18.04 in May 2018 and in­stal­ling HPLIP soft­ware to be able to print on my Hewlet Pac­kard La­serJet Pro MFP M125nw prin­ter, prin­ting wor­ked correctly. Then it got bro­ken by causes unk­nown to me in June and I had to fix it. This, however, didn’t go wi­thout com­pli­cati­ons.
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Exctract blue-ray vi­deo stre­ams from ISO file un­der Li­nux (Ubuntu)

To be able to en­code blue-ray (BD) source into some more uni­ver­sal for­mat, you have to first have ac­cess to sin­gle video/audio stre­ams that com­prise the BD. These are vi­deo fi­les with ex­tension .m2ts in­side which is an Advan­ced Vi­deo Co­dec (High@L4.1) vi­deo and PCM au­dio. For now, this ar­ticle will skip the sub­tit­les be­cause I currently don’t have a BD with sub­tit­les on my disk. These fi­les are nor­mally pla­ya­ble in a pla­yer like MPV.

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256 ba­rev v ter­mi­nálu na Ubuntu

Pro­kras­ti­nace je silná a nutí člo­věka vy­mýš­let další a další věci, jak si na­sta­vit svůj Mutt. Dnes od­po­ledne jsem na­ra­zil na kom­plexní ba­revné schéma pro Mutt, které ale vy­u­žívá 256odstínového ba­rev­ného mo­delu, což v zá­kladu ubun­ťácký ter­mi­nál ne­umí, takže po na­čtení to­hoto na­sta­vení Mutt pěkně řval:

Error in /home/edison23/.muttrc, line 225: 136: color not supported by term

… a tak po­dobně.
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