Posted by jpluimers on 2017/10/06
In this article we will review sed, the well-known stream editor, and share 15 tips to use it in order to accomplish the goals mentioned earlier, and more.
I like it because 15 Useful ‘sed’ Command Tips and Tricks for Daily Linux System Administration Tasks has a lot of screenshots showing what each expression actually does.
–jeroen
Posted in *nix, *nix-tools, Power User, sed | Leave a Comment »
Posted by jpluimers on 2017/10/05
Wow: nojhan/liquidprompt: A full-featured & carefully designed adaptive prompt for Bash & Zsh
This is really useful!
via:
Sort of tanslated from the first “via” (note that “mit Alles und Scharf” is hard to translate; it’s somewhere between “everything but the kitchen sink, but done right” and “right on the money”):
Bash Prompt Overkill: https://github.com/nojhan/liquidprompt is a Bash “Prompt doing it all right”-extension, which doesn’t care how much any feature costs as we have cores, gigabytes and SSD.
Liquid Prompt automagically recognises context and enables a plethora of features in the prompt when needed based on that context.
It’s like pixie dust for your prompt.
You can configure everything, but you don’t have to: the out of the box experience is already like pixie dust for your prompt.
It works on OS X too and is part of homebrew:
$ brew install liquidprompt ==> Using the sandbox ==> Downloading https://github.com/nojhan/liquidprompt/archive/v_1.11.tar.gz ==> Downloading from https://codeload.github.com/nojhan/liquidprompt/tar.gz/v_1.11 ######################################################################## 100.0% ==> Caveats Add the following lines to your bash or zsh config (e.g. ~/.bash_profile): if [ -f /usr/local/share/liquidprompt ]; then . /usr/local/share/liquidprompt fi If you'd like to reconfigure options, you may do so in ~/.liquidpromptrc. A sample file you may copy and modify has been installed to /usr/local/share/liquidpromptrc-dist Don't modify the PROMPT_COMMAND variable elsewhere in your shell config; that will break things. ==> Summary 🍺 /usr/local/Cellar/liquidprompt/1.11: 7 files, 125.6K, built in 3 seconds [jeroenp:~/Versioned] 10s $
–jeroen
Posted in *nix, *nix-tools, Apple, bash, bash, Development, Mac OS X / OS X / MacOS, Power User, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2017/09/22
Via “In the form over function era: Using Network Manager from the command line” [WayBack]:
As a Linux administrator you’ve got various tools to use in order to configure network connections, such as: nmtui, NetworkManager GUI and nmcli in Linux
Source: How to Configure and Manage Network Connections Using ‘nmcli’ Tool [WayBack]
–jeroen
Posted in *nix, *nix-tools, Linux, Power User | Leave a Comment »
Posted by jpluimers on 2017/09/14
Just in case someone has a better alternative than youtube-dl alias:
alias youtube-dl-audio-and-video='youtube-dl --keep-video --extract-audio --audio-quality 0 --audio-format mp3'
It extracts the audio and keeps the video.
The result is that also all intermediate downloads are being kept.
So even after studying the README extensively the only alternative seems to be a double download like this:
youtube-dl-audio-and-video() { youtube-dl --extract-audio --audio-quality 0 --audio-format mp3 $1; youtube-dl $1; }
–jeroen
Posted in *nix, *nix-tools, bash, bash, Development, Power User, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2017/09/07
Interesting reads:
Need to research how I can fit noatime ino.
–jeroen
Posted in *nix, *nix-tools, btrfs, File-Systems, Power User | Leave a Comment »
Posted by jpluimers on 2017/08/28
This is so cool, but will take some time for lot’s of tooling to become compatible:
Starting with v197 systemd/udev will automatically assign predictable, stable network interface names for all local Ethernet, WLAN and WWAN interfaces. This is a departure from the traditional interface naming scheme (“eth0”, “eth1”, “wlan0”, …), but should fix real problems.
–jeroen
Posted in *nix, *nix-tools, Linux, Power User, systemd | Leave a Comment »
Posted by jpluimers on 2017/07/27
Not sure why without the -z compression switch this succeeds:
# rsync -avloz /var/lib/named/master/ /etc/named/master/ sending incremental file list pluimers.com Segmentation fault (core dumped) # rsync -avlo /var/lib/named/master/ /etc/named/master/ sending incremental file list pluimers.com pluimers.com.20161231 pluimers.com~ sent 10,495 bytes received 74 bytes 21,138.00 bytes/sec total size is 132,231 speedup is 12.51 # rsync -avloz /var/lib/named/master/ /etc/named/master/ sending incremental file list sent 1,547 bytes received 13 bytes 3,120.00 bytes/sec total size is 132,231 speedup is 84.76
–jeroen
via: [WayBack] rsync(1) – Linux man page
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Posted by jpluimers on 2017/07/19
I’ve not tracked down the cause yet, but these seem to be related:
I’ve “fixed” 4. by doing this as recommended at osx – Copy and Cut sometimes don’t work – Ask Different:
launchctl list | grep com.apple.pboardIf the pboard daemon is running, then stop and start it. If it’s not running, start it:
launchctl stop com.apple.pboard launchctl start com.apple.pboard
Now 4. works again if I restart each application, 6. still works, but these applications still cannot copy/paste to 1. 2. and 3.
What does work is a full reboot, but that takes a while (especially Chrome re-loading lots of Windows: I need to get more organised here).
It might be that I need to restart each application in 6.
Grrr…..
–jeroen
Posted in *nix, *nix-tools, Apple, atom editor, Hardware, iMac, Internet, Mac, Mac OS X / OS X / MacOS, MacBook, MacBook Retina, MacBook-Air, MacBook-Pro, MikroTik, Network-and-equipment, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.9 Mavericks, Power User, routers, Text Editors, tmux | 4 Comments »
Posted by jpluimers on 2017/07/07
Good reading on #NoEmailDay 2017: The case of the 500-mile email [WayBack] on how a sysadmin in the mid 1990s found the cause of not being able to send email further than roughly 500 miles.
The exact mile unit doesn’t matter as it was all approximation. Read the FAQ on the 500-mile email [WayBack]
–jeroen
via:
PS: some sendmail tricks from
Posted in *nix, *nix-tools, Fun, Power User, sendmail | Leave a Comment »
Posted by jpluimers on 2017/07/03
fuser is a simple yet powerful command line utility intended to locate processes based on the files, directories or socket a particular process is accessing.
Source: Learn How to Use ‘fuser’ Command with Examples in Linux [WayBack]
via: Learn How to Use ‘fuser’ Command with Examples in #Linux – Joe C. Hecht – Google+ [WayBack]
Posted in *nix, *nix-tools, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 