A collection of simple programs/scripts which I found useful at some point but which do not deserve a repository on their own.

Design goals

Minimal number of dependencies:

• favor builtin dependencies;
• eg. argparse instead of click;
• try to use dependencies which are already packaged in your standard Linux distro;
• try to keep compatibility with different versions of the libraries.

Interface:

• the CLI interface may not be completely stable;
• some programs may have very limited CLI handling.

Simplicity:

• try to keep the code simple, easy to modify and repurpose for other purpose.

Partial list of tools

Admin

admin/:

• gnt-instance-vnc-connect.py, open a RDP connection to a Ganeti instance from a Ganeti node

CMS

content/:

• joomla_to_wordpress_redirect.rb, generate redirections for a Joomla to WordPress migration.

Content

content/:

• cleanup_html.rb, cleanup HTML snippet

Data

data/:

• accesslog2jsonl.py, parse access.log (HTTP server) logs into JSON line entries
• cbor2json.py convert CBOR to JSON
• decode-hc1-covid-certificate, decode a HC1 COVID certificate
• fods2html.xsl, XSLT stylesheet to convert OpenDocument plain XML spreadsheets (.fods) into HTML
• grexpath.rb, like grep buth with XPATH expression
• json2cbor.py, convert JSON to CBOR
• json2msgpack.py, convert JSON to MessagePack
• json2yaml.py, convert JSON to YAML
• ltsv2jsonl.py, convert LTSV (labelLabeled Tab-separated Values) to JSON lines
• msgpack2json.py, convert MessagePack to JSON
• re2jsonl.py, convert lines int JSON based on one or more regular expressions
• splitasciiarmor.py, split ASCII Armor (or PEM) files into multiple files
• tsv2html.sed, convert TSV to HTML <table>
• yaml2json.py, convert YAML to JSON
• zlibcat.py, decompress raw zlib (like zcat and friends)

Desktop

desktop/:

• global-stopwatch.py, desktop stopwatch based on global keybindings.
• gui_filter.sh, filter the content of the clipboard/selection through a UNIX command
• keybinder.py, execute a program when a global keyboard shortcut is triggered
• ocrjpn.sh, OCR a selection of the screen in order to extract Japanese characters
• take-screenshot.sh, take a screenhot
• which-theme.sh, which themes are available in both GTK2 and GTK3?
• xrandr-helper.sh, helper for xrandr
• xsettings-query.py, dump XSETTINGS
• zbarflash.sh, parse QR code from a selection of the screen

Desktop and sound

desktop/sound/:

• pulse-mute-toggle.py, toggle PulseAudio default source mute with desktop notification
• pulse-toggle-output.py, toggle default PulseAudio output
• pushtotalk.py, push-to-talk using PulseAudio

Development

dev/:

• compile_commands/gen_compile_commands.rb, generat a compile_commands.json from a set of rules (for helping tooling integration);

Profiling

dev/profiling/:

• aggregate-counts.py
• megalopoll.py, polling command, simple building block for Poor man's profiling
• pmp.sh, Poor-man's profiler implementation
• stackcollapse-jstack.py, collapse Java stacks from jstack and jcmd for FlameGraph
• symbolicate-elfutils.py, add symbols from /tmp/perf-$pid.map into output of elfutils stack

For SQL:

• pmp-mysql.sh, Poor-man's profiler for MySQL and MariaDB requests
• normalize-sql.py, normalize SQL requests (useful for aggregation)

Devices

device/:

• feel-my-power.py, display notification about battery status of devices (eg. for wireless gamepad) using upower

Disk

disk/:

• mount-diskimage.py, mount an image (ISO) using udisks2
• xdg-open-diskimage.sh

Misc

misc/:

• sleep-exponential.py, like sleep with following an exponential distribution

Network

network/:

• ipls.py, list IP addresses in a subnet
• rmcp-discover.py, discover RMCP nodes (such as AMT or IPMI) on the LAN
• ssdp-listen.py, listen for SSDP announces and dump responses
• ssdp-search.py, launch a SSDP search request and dump responses
• upnp-display-interfaces.py, display human friendly description of some UPnP service

Security

security/:

• memexec.py, execute a program from a pipe, etc. without writing the file to any filesystem.

SSH

ssh/:

• list-ssh-hosts.py, lists known SSH hosts
• ssh-menu.sh, TUI menu for opening a shell on a chosen SSH host

System

system/:

• fdpass/fdpass.py, pass a file descriptor over STDOUT
• fdpass/fdrcv-test.py, receive a file descriptor from fdpass.py
• seccompstuff/nonetwork.c, disable networking system calls using seccomp-bpf
• procdump.py, dump a process memory without stopping it
• socket-activate.py, systemd-style (LISTEN_FDS) socket activation (like systemd-socket-activate)
• socket-listen-inetd.py, LISTEN_FDS/inetd bridge

Websites

Interaction with known web sites/services (websites/):

• github-api.py, CLI for Github API