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rtfd/docs/tasks.rst

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Tasks
=====
* latest
* openssl pkcs12 -nocerts -nodes -in input.p12 -out output.pem
* openssl pkcs12 -nokeys -in input.p12 -out output.crt
* (openssl pkcs12 -nokeys -cacerts -in input.p12 -out output.crt)
* (openssl pkcs12 -nokeys -clcerts -in input.p12 -out output.crt)
* ffmpeg -i input.mkv -filter:v "setpts=0.5*PTS" output.mkv
* ffmpeg -i input.mkv -r 16 -filter:v "setpts=0.25*PTS" output.mkv
* ffmpeg -i input.mkv -filter:a "atempo=2.0,atempo=2.0" -vn output.mkv
* ffmpeg -i input.mkv -filter_complex "[0:v]setpts=0.5*PTS[v];[0:a]atempo=2.0[a]" -map "[v]" -map "[a]" output.mkv
* ssh -n -N -T -R remote_port:localhost:local_port domain.tld
* gotty
* buster noise alsa unmute mic
* rdesktop
* youtube-dl -f bestaudio --extract-audio
* /etc/bash.bashrc ← HISTTIMEFORMAT="%Y%m%d-%H%M%S "
* fcgiwrap for git over http and gitweb
* file
* .git/description (gitweb)
* peek
* tty size → setfont (/usr/share/consolefonts/\*.psf.gz)
* vcard spec
* chntpw / reged -e
* chvt
* gpg edit change-usage (hidden)
* qrencode -l L -m 1 -s 8 -t PNG -o pgp.png 'openpgp4fpr:FFIINNGGEERRPPRRIINNTT'
* pdftk in.pdf background bg.pdf output out.pdf compress
* JFIF removal in background PDF files
* ghostscript -o in.img.pdf -sDEVICE=pdfwrite -dFILTERTEXT -dFILTERVECTOR in.pdf
* ghostscript -o in.tav.pdf -sDEVICE=pdfwrite -dFILTERIMAGE in.pdf
* chromium --ppapi-flash-path=/path/to/libpepflashplayer.so --ppapi-flash-version=32.0.0.171
* git commit -S, tag -s, user.signingKey
* youtube-dl -f bestvideo+bestaudio --all-subs --merge-output-format mkv url
* grub: have a root menu in grub.cfg, otherwise escape sends to CLI
* parted: print free, unit MB
* pass
* DNS override /etc/NetworkManager/NetworkManager.conf [main] dns=none
* firefox ~/.mozilla/plugins ← libflashplayer.so
* /etc/sysctl.conf net.ipv4.ip_forward=1 | /proc/sys/net/ipv4/ip_forward
* /etc/network/interfaces → up command args…
* lxc private network: reach out
* iptables -t nat -A POSTROUTING -o br0 -s 10.0.0.0/8 -j MASQUERADE
* lxc private network: get in
* iptables -t nat -A PREROUTING -i br0 -p tcp --dport 2211 -j DNAT --to 10.0.1.1:22
* hexdump -C -v file_path
* qemu-system avoid junk like floppy: -nodefaults -vga virtio
* xtra.squashfs empty media/data ← lib/live/mount/medium + data auto fstab
* grub-bios-setup not functionin with boot.img in an overlay fs
* qemu-system-x86_64 -initrd initrd.img -kernel vmlinuz -append root=/dev/sda1
* adduser user kvm for -enable-kvm
* qemu-img convert -p -O format input.ext output.ext
* qemu-img create -f format -o ?
* qemu-img create -f format name.ext [size]
* qemu-img info name.ext
* modprobe nbd
* qemu-nbd -c /dev/nbd? name.ext
* qemu-nbd -d /dev/nbd?
* qemu-system-x86_64 -enable-kvm -display sdl -m 2048 -drive file=name.ext,if=virtio
* sys: firmware-{misc-nonfree,netxen,realtek}
* catimg
* mount -t overlay overlay -o lowerdir=squashmount,upperdir=rwdir,workdir=emptydir squashfs-root
* optipng
* grub/efi: no biosdisk or ntldr
* chromium as alternate browser
* ['sphinx.ext.graphviz'] ⋅ graphviz_output_format = 'svg'
* remove users' .bashrc files
* deb [arch=amd64,i386] → /etc/apt/sources.list
* /etc/localtime -> /usr/share/zoneinfo/Europe/Paris
* /etc/timezone ← Europe/Paris
* /usr/local/share/ca-certificates ⇒ update-ca-certificates
* debian: buster/updates signed with archive-7 key
* .git/config ← receive.denyCurrentBranch = updateInsted
* python3: mutables persistent as constructors default
* atop, jq, netcat
* dependencies: readelf → ldd
* DebFromScratch: tasks
* /etc/dhcp/dhclient.conf no overwrite resolv.conf
* Dir::Etc::sourceparts "";
* Acquire::Check-Valid-Unitl false;
* APT::Install-Recommends "false";
* APT::Install-Suggests "false";
* debootstrap: minbase
* debootstrap: umount machine-id afterwards
* machine-id: /etc empty ⋅ /var/lib/dbus useless
* DEBIAN_FRONTEND="noninteractive" for apt install
* console-setup -> /etc/default/keyboard
* console-data -> loadkeys fr
* org.gnome.desktop.media-handling.autorun-never true
* org.gnome.desktop.interface.text-scaling-factor 1.5
* AppArmor/lxc? lxc.aa_profile = unconfined
* graphviz
* tig
* upx-ucl
* ?/vmlinuz apparmor=0 (KO backports profiles)
* LD_LIBRARY_PATH=path/to/libs path/to/executable
* upx --best executable
* nuitka --portable --python-version=3.5 --remove-output --show-progress --show-modules main.py
* bpython3
* sphinx configuration
* __git_complete gco _git_checkout
* git LFS
* apt-mirror
* DEBIAN_FRONTEND=noninteractive for keyboard-configuration interactive prompt
* sudo, sudoers
* sqlite
* umask
* node, process.umask(2)
* critical
* ~/.config/gtk-3.0 → bookmarks ⋅ settings.ini
* dbus-run-session -- gsettings set key value
* gsettings get key
* linux: ram merges live-media-path's squashfs files but not fully in RAM
* linux: toram=xxx.squashfs
* ram disk size argument
* panic kernel argument for seconds to automatically reboot
* ! manual build of live-boot system's initrd.img after kernel upgrade
* /etc/skel
* auto-update if firefox archive in ~/.local
* ? systemd-sysv ↔ linux-image-amd64 ↔ live-boot
* ! GUI keyboard-configuration /etc/default/keyboard
* reference missing mkdocs strict option
* apt-transport-https
* dhcpcd
* handle upstream GPG public keys
* check authenticity mirrors with GPG
* lxc-create packages
* ${init}
* ifupdown
* locales
* dialog
* isc-dhcp-client
* netbase
* net-tools
* iproute
* openssh-server
* extra
* json.load(f, object_pairs_hook=collections.OrderedDict)
* tty screenshot → sudo fbcat > name.ppm
* consoleblank=0 / setterm --blank 0
* on-the-fly LibreOffice documents conversion
* send emails as own domain name's alias
* personal GPG key signature