sunipkm

#!/bin/bash

# Set script to exit on error
set -e

# Enable logging
exec > >(tee -i /var/log/setup-script.log)
exec 2>&1

echo "Starting script execution..."

sunipkm

installing HPE StoreOpen Software for RHELx64 to Ubuntu 20.04.2 LTS.

Reference: https://rabbit-note.com/2020/01/12/ubuntu-ltfs/

Get SOS_RHELx64 rpm

https://h20392.www2.hpe.com/portal/swdepot/displayProductInfo.do?productNumber=SOS_RHELx64

$ ls

sunipkm

nmcli con add \
  type wifi \
  con-name "eduroam"
  ifname "wlp4s0" \ # Your wifi interface
  ssid "eduroam" \
  wifi-sec.key-mgmt "wpa-eap" \
  802-1x.identity "<YOUR-STUDENT-ID>@lu.se" \ # May also use another university identification
  802-1x.password "<YOUR-PASSWORD" \
  802-1x.system-ca-certs "yes" \
  802-1x.domain-suffix-match "radius.lu.se" \

sunipkm

Memory profiling Rust code with heaptrack in 2019

I recently ran into a classic case of "our code is using way more memory than it should". So I took my first dive into memory profiling Rust code. I read several posts about this, including the following

• KodrAus' gist on profiling rust
• This reddit thread
• Brendan D. Gregg's post about memory flamegraphs
• Bradlee Speice's A Case Study in Heaptrack

sunipkm

#!/bin/bash
# This Works is placed under the terms of the Copyright Less License,
# see file COPYRIGHT.CLL.  USE AT OWN RISK, ABSOLUTELY NO WARRANTY. 
#
# COPYRIGHT.CLL can be found at http://permalink.de/tino/cll
# (CLL is CC0 as long as not covered by any Copyright)

OOPS() { echo "OOPS: $*" >&2; exit 23; }

[ -z "`pidof openssl`" ] || OOPS "openssl running, consider: killall openssl"

sunipkm

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

• Ctrl-Key: ^[
• Octal: \033
• Unicode: \u001b
• Hexadecimal: \x1b
• Decimal: 27