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User Help Web Pro

Google analytics how to find Active Users by host name

We’ve got an web based enterprise application which has GA hooked into it. Previously i’ve just been viewing the active user count to see what our count is across the board. Im wanting to get the figure of Active Users via Host Name, which would think would be an easy figure to pull out of […]

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Bitcoin Cryptocurrency Mastering Development

Is it possible to have duplicate transactions in “listsinceblock” RPC call ? If yes, why?

Is it possible to have duplicate transactions(same transactions in the response) in "listsinceblock" RPC call ? If yes, why?

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Linux Mastering Development

How to speed up grep on large history?

I have an unlimited .zsh_history which is currently at 10k lines. I often want to see all commands from history that have a certain string, for example curl. If I do history | grep curl it takes a long time to finish. If I do grep curl ~/.zsh_history it is much faster, but the formatting […]

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Linux Mastering Development

Stay connected while executing a remote WGET command?

I use Putty to remotely login into SERVER 1 and issue a WGET to another SERVER 2 to make a backup of a large directory. My question is, do I have to stay connected while this process occcurs? Or, is it enough to simply exectute the WGET command and all the files will copy over, […]

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Cryptocurrency Ethereum Mastering Development

Types in Solidity

I have uint256 number. I need transform this number in binary or string format for my goal. What is restrictions in transfor and work with present formats exist in Solidity? What is the libraries exist for my tasks? Get me advice.

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Linux Mastering Development

Systemd: running a 15 minute job every 15 minutes

I want to set up scripts and systemd timers to allow 24×7 dumping of 8 RTSP streams to disk, in 15 minute chunks, each starting on the quarter hour. I start with a script to do the dumping for 15 mins (I do some date math and setup which I’ve omitted): #!/bin/bash ffmpeg -hide_banner -loglevel […]

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Linux Mastering Development

Bash – make counter print superscript numbers

If I had a script with a counter, printing numbers like this: #!/bin/bash while true; do i=$((i+1)) echo "$i" sleep 1 done; prints: 1 2 3 4 5 […] how can I make the script print superscript numbers? so I would get: ¹ ² ³ ⁴ ⁵ […]

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Linux Mastering Development

Absolute value of number

I have a single line of numbers separated by a space. read var sum=0 for x in $var; do … #add numbers together $((sum += x)) done I need the printed value to be an absolute number I got one more issue I am getting. The format I am trying to get an absolute number. […]

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Linux Mastering Development

cp copies from hard drive to USB 3.0 stick with transfer speed below 1.7MB/s!

Aspire One Cloudbook 14 (A01-431-C8G8) Linux kernel 4.19 Debian 10 Hi: I have a USB 3.0 pendrive (stick) plugged into a USB 3.0 slot in the laptop. I copied (cp) all files in one of the laptop partitions to a partition in the stick. ‘du -hs’ said the files amounted to roughly 7GB. Now cp […]

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Linux Mastering Development

Errors when booting Ubuntu 20.04 kernel 5.7.1

I have a Ryzen 5 3500U laptop and I know the drivers aren’t there yet with linux but I’d like to know if any of you have experienced/solved the following errors when starting up / shutting down the pc. [0.424362] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PC10.GPP2.BCM5] AE_NOT_FOUND (20200326/dswload2-162) [0.424383] ACPI Error: AE_NOT_FOUND, […]