eric-glb

#!/usr/bin/env bash

# Generate 20GB file of random data in /dev/shm (~ramdisk)
time openssl enc -aes-256-ctr \
                 -pass pass:"$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64)" \
                 -nosalt < /dev/zero 2>/dev/null | 
  dd bs=4M \
     count=5120 \
     status=progress \
     iflag=fullblock \

eric-glb

test: mpitest
	mpirun -np 2 ./mpitest

mpitest: mpitest.c
	mpicc mpitest.c -o mpitest

clean:
	rm mpitest

eric-glb

GW=$(</proc/net/route awk 'NR==2 {print $3}' | sed -E 's/(..)/\1 /g' | if read a b c d; then printf '%d.%d.%d.%d' 0x$d 0x$c 0x$b 0x$a; fi)

eric-glb

[docker] logs, logs, logs...

Increase the log size in docker when building a container

On a centos7

# The service file for docker.service, on a centos7
service_file=/lib/systemd/system/docker.service

eric-glb

Use a squid proxy cache container for container build

Assuming we run a squid container configured.

Ensure the RH-based container will only use one external repo

FROM centos:7
RUN  sed -i '/^mirrorlist/d; s/^#baseurl=/baseurl=/' /etc/yum.repos.d/*.repo
...

eric-glb

#!/usr/bin/env bash

# Short script to mute/unmute mic; to associate to a keyboard shortcut

icon="audio-input-microphone-symbolic"
state=$(amixer set Capture toggle | awk 'match($0, /Front Left.*\[(.*)\]/, a) {print a[1]}')
# On Debian/Ubuntu/...: apt-get install libnotify-bin
which notify-send &>/dev/null && notify-send --hint=int:transient:1 -i $icon "Mic switched: $state"
echo -e "\nMic switched: $state\n"

eric-glb

write_message() {
  local message
  message="  ${*}  "
  __write() {
    local reset col_bg col_fg
    reset="$(tput sgr0)"
    col_bg="$(tput setab 4)"
    col_fg="$(tput setaf 0)"
    [[ "${2-}" == "--no-background" ]] && unset col_bg
    tput sc

eric-glb

How to debug git CLI issues

From: https://www.shellhacks.com/git-verbose-mode-debug-fatal-errors/

Debug Git command:

GIT_TRACE=true \
GIT_CURL_VERBOSE=true \
GIT_SSH_COMMAND="ssh -vvv" \

eric-glb

steampipe & steampipe-plugin-vanta output issue

Links:

• steampipe
• steampipe.io
• steampipe-plugin-vanta

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eric-glb

Debian: CapsLock like on Windows (Macbook Air edition)

How to configure the keyboard on Debian in order for capslock to function like on Windows, using a french Apple Keyboard (French (Macintosh)).

Solution found here, adapted for my old french Macbook Air.

Configuration file to create: