Add a truckload of new tidbits

how_to

@@ -127,9 +127,13 @@ PDF :
     AUR -> pdftk :
         Merge pdf :
             pdftk input1.pdf input2.pdf input3.pdf cat output output.pdf
-	Extract pages :
+        Extract pages :
             pdftk input.pdf cat <range> output out.pdf
             # range can be <start>-<end>, more info at pdftk --help
+    Add images and other files in a single pdf:
+        convert [jpg|png|txt|pdf|...] output.pdf
+        # Might need to tweak /etc/ImageMagick-7/policy.xml
+        # https://stackoverflow.com/questions/52998331/imagemagick-security-policy-pdf-blocking-conversion
 
 D-Bus :
     To reload service files /usr/share/dbus-1/services/
@@ -163,7 +167,7 @@ Drag & drop files:
 Fix hardware clock (with chrony):
     sudo chronyc
         makestep
-	trimrtc
+    trimrtc
         quit
     Alternative to trimrtc:
         sudo hwclock --systohc
@@ -183,6 +187,8 @@ Use scanner from command line
     If invalid argument:
         scanimage -L
         scanimage --device <device> ...
+    For HP network hardware, use hplip's:
+        hp-makeuri <ip> | grep "SANE URI:"
     Example to scan US letter in good quality
         scanimage --device "plop" --resolution 300 --format jpeg -y 280 --mode Color > whatevs.jpg
 
@@ -206,6 +212,9 @@ Video and audio editing:
         ffmpeg -i in.mp4 -an out.mp4
     Nvidia hardware encoding
         optirun ffmpeg -i in.mp4  -c:v h264_nvenc -crf 23 out.mp4
+    Gif to mp4 for browsers/the web:
+        # https://unix.stackexchange.com/a/294892
+        ffmpeg -i in.gif -movflags faststart -pix_fmt yuv420p -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" out.mp4
 
 RE .net apps:
     ilspymono <list-of-deps.txt>(can be empty) <exe or dll to disassemble> <output dir>
@@ -226,7 +235,7 @@ Mount as user:
 
 Borg backup:
     borg init --encryption=repokey-blake2 </repo>
-    borg create -v --stats --progress --compression zlib /mnt/<machine>/home/::{now} /home/<user>
+    borg create -v --stats --progress --compression zlib "/mnt/<machine>/home/::{now}" /home/<user>
     borg list </repo>
     borg check --verify-data --progress </repo>
     borg mount </repo> </mount>
@@ -352,6 +361,8 @@ Easy LaTeX compilation:
     $ trizen -S tectonic
     $ tectonic <file>.tex
     Should automatically resolve all dependencies
+    Also takes care of biblatex
+    Uses Xetex to compile
 
 Rename files from date of creation:
     for f in *;do
@@ -497,9 +508,16 @@ Uncompress android .ab backup files:
 Fix: Failed to activate service 'org.freedesktop.login1': timed out:
     If dbus has been restarted, don't forget to restart elogind/systemd-logind
 
-Artilinux steam lib32-systemd fix:
-    https://forum.artixlinux.org/index.php/topic,633.msg7437.html
-    [Attached file]: resources/lib32-systemd-dummy.pkgbuild
+Artix:
+    Artixlinux pacman gpg unknown trust fix:
+        sudo pacman-key --init
+        sudo pacman-key --populate archlinux artix
+
+    Artixlinux steam lib32-systemd fix:
+        https://forum.artixlinux.org/index.php/topic,633.msg7437.html
+        [Attached file]: resources/lib32-systemd-dummy.pkgbuild
+    Open-rc keymap:
+        /etc/conf.d/keymaps
 
 LibreOffice unlock write-protected doc:
     Format -> Sections... -> [Uncheck Protect in "Write protection"]
@@ -530,3 +548,150 @@ Simple python HTTP server:
         python -m http.server [port]
     python2:
         python -m SimpleHTTPServer [port]
+
+Elegant deduplication lines in file:
+    https://iridakos.com/how-to/2019/05/16/remove-duplicate-lines-preserving-order-linux.html
+    awk '!visited[$0]++' your_file > deduplicated_file
+
+Decode webp:
+    # from google's libwebp
+    # jpeg isn't supported, use convert after that
+    dwebp in.webp -o out.png
+
+Run studiotax on wine:
+    http://pnijjar.freeshell.org/2018/studiotax/
+    WINEARCH=win32
+    winetricks settings win7  # Might not be necessary
+    winetricks dlls dotnet45 ie6
+    winetricks settings win7
+    wine ./StudioTax2017Install.exe /extract
+    msiexec /i StudioTax.msi
+
+Fill dynamic XFA forms on linux:
+    Run Acrobat Reader DC 2019 on wine:
+        https://linuxconfig.org/how-to-install-latest-adobe-acrobat-reader-dc-on-ubuntu-18-04-bionic-beaver-linux-with-wine
+        https://www.quora.com/How-do-I-install-Adobe-Reader-on-Ubuntu-using-the-Wine-software
+        ftp://ftp.adobe.com/pub/adobe/reader/win/AcrobatDC/
+        WINEARCH=win32
+        WINEPREFIX=~/.wine-32
+        winetricks mspatcha
+        winetricks riched20
+        winetricks allfonts  # Maybe not ?
+        trizen -S ttf-windows  # Indispensable, without it no text in UI
+        # maybe? winetricks atmlib wsh57
+        winetricks settings win7
+        wget ftp://ftp.adobe.com/pub/adobe/reader/win/AcrobatDC/1901220034/AcroRdrDC1901220034_en_US.exe  # Replace by latest version
+        wine ./AcroRdrDC1901220034_en_US.exe
+        wine ~/.wine-32/drive_c/Program\ Files/Adobe/Acrobat\ Reader\ DC/Reader/AcroRd32.exe
+        Select "Always open with Protected Mode Disabled"
+        Don't forget to kill the wineserver, adobe leaves a lot of garbage running:
+            wineserver --kill
+    Master PDF Editor (free version):
+        https://code-industry.net/free-pdf-editor/
+        trizen -S masterpdfeditor
+
+Easily switch to russian phonetic keyboard:
+    setxkbmap fr,ru -variant ,phonetic -option grp:shift_caps_toggle
+    man xkeyboard-config  # get list of possible toggles
+
+Image/photo sorting with feh:
+    feh --action1 'mv -v %F "/path/to/target/"%N' \
+        --action[2-9] [...] /dir/to/sort
+
+Setup udev for android device with adb:
+    # Solves "adb: error: failed to get feature set: insufficient permissions for device"
+    # https://wiki.archlinux.org/index.php/Android_Debug_Bridge#Adding_udev_Rules
+    Get Vendor and and product IDs with
+        $ lsusb
+    /etc/udev/rules.d/51-android.rules:
+        SUBSYSTEM=="usb", ATTR{idVendor}=="[VENDOR ID]", MODE="0660", GROUP="adbusers"  # Or sdkusers
+        SUBSYSTEM=="usb",ATTR{idVendor}=="[VENDOR ID]",ATTR{idProduct}=="[PRODUCT ID]",SYMLINK+="android_adb"
+        SUBSYSTEM=="usb",ATTR{idVendor}=="[VENDOR ID]",ATTR{idProduct}=="[PRODUCT ID]",SYMLINK+="android_fastboot"
+    $ sudo udevadm control --reload-rules
+
+Get original windows key from linux:
+    # From: https://twitter.com/BrandonPrry/status/1038269038881898498
+    # Not guaranted to work
+    sudo cat /sys/firmware/acpi/tables/MSDM | tail -c 32 | xargs -0 echo
+
+Wayland install:
+    Qt issues:
+        sudo pacman -S qt5-wayland
+        export QT_QPA_PLATFORM="wayland"
+
+MSI ge62 webcam not found:
+    Activate using fn+F6
+
+Air Canada PNR access:
+    https://services.aircanada.com/ServicingPNR/Ancillary/ACO/
+
+Android diagnostic debug phone codes:
+    # https://www.itworld.com/article/2708985/debug-your-phone-with-these-hidden-android-secret-codes.html
+    # https://www.redmondpie.com/hidden-android-secret-codes-for-samsung-htc-motorola-sony-lg-and-other-devices/
+    *#06# – IMEI number
+    *#0*# – Enter the service menu on newer phones like Galaxy S III
+    *#*#4636#*#* – Phone information, usage statistics and battery
+    *#*#34971539#*#* – Detailed camera information
+    *#*#273282*255*663282*#*#* – Immediate backup of all media files
+    *#*#197328640#*#* – Enable test mode for service
+    *#*#232339#*#* – Wireless LAN tests
+    *#*#0842#*#* – Backlight/vibration test
+    *#*#2664#*#* – Test the touchscreen
+    *#*#1111#*#* – FTA software version (1234 in the same code will give PDA and firmware version)
+    *#12580*369# – Software and hardware info
+    *#9090# – Diagnostic configuration
+    *#872564# – USB logging control
+    *#9900# – System dump mode
+    *#301279# – HSDPA/HSUPA Control Menu
+    *#7465625# – View phone lock status
+    *#*#7780#*#* – Reset the /data partition to factory state
+    *2767*3855# – Format device to factory state (will delete everything on phone)
+    ##7764726 – Hidden service menu for Motorola Droid
+    *#*#7594#*#* – Enable direct powering down of device once this code is entered
+    *#*#273283*255*663282*#*#* – Make a quick backup of all the media files on your Android device
+    *#*#232338#*#* – Shows Wi-Fi MAC address
+    *#*#1472365#*#* – Perform a quick GPS test
+    *#*#1575#*#* – For a more advanced GPS test
+    *#*#0283#*#* – Perform a packet loopback test
+    *#*#0*#*#* – Run an LCD display test
+    *#*#0289#*#* – Run Audio test
+    *#*#2663#*#* – Show device’s touch-screen version
+    *#*#0588#*#* – Perform a proximity sensor test
+    *#*#3264#*#* – Show RAM version
+    *#*#232331#*#* – Run Bluetooth test
+    *#*#232337#*# – Show device’s Bluetooth address
+    *#*#7262626#*#* – Perform a field test
+    *#*#8255#*#* – Monitor Google Talk service
+    *#*#4986*2650468#*#* – Show Phone, Hardware, PDA, RF Call Date firmware info
+    *#*#1234#*#* – Show PDA and Phone firmware info
+    *#*#2222#*#* – Show FTA Hardware version
+    *#*#44336#*#* – Show Build time and change list number
+    *#*#8351#*#* – Enable voice dialing log mode, dial *#*#8350#*#* to disable it
+    ##778 (+call) – Show EPST menu
+    These codes are specific to HTC devices only:
+    *#*#3424#*#* – Run HTC function test program
+    *#*#4636#*#* – Show HTC info menu
+    ##8626337# – Run VOCODER
+    ##33284# – Perform field test
+    *#*#8255#*#* – Launch Google Talk service monitor
+    ##3424# – Run diagnostic mode
+    ##3282# – Show EPST menu
+    ##786# – Reverse Logistics Support
+
+Android wpa_supplicant conf file path:
+    /data/misc/wifi/wpa_supplicant.conf
+
+Run GUI apps as root with sudo on Wayland:
+    # https://bugzilla.redhat.com/show_bug.cgi?id=1274451
+    xhost +SI:localuser:root
+    sudo <gui>
+    xhost -SI:localuser:root  # Clean up the security hole
+
+Fix Network Manager nm-applet/nmtui only working with root/sudo:
+    # /etc/polkit-1/rules.d/50-org.freedesktop.NetworkManager.rules
+        polkit.addRule(function(action, subject) {
+          if (action.id.indexOf("org.freedesktop.NetworkManager.") == 0 && subject.isInGroup("network")) {
+            return polkit.Result.YES;
+          }
+        });
+    sudo usermod -aG network <user>