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powershell + ssh agent (+git rem)
August 02, 2024
Usual error in ps console looks like this 
Starting ssh-agent on Windows 10 fails: "unable to start ssh-agent service, error :1058"

Let's fix this 
> Get-Service ssh-agent

Status   Name               DisplayName
------   ----               -----------
Stopped  ssh-agent          OpenSSH Authentication Agent
Then check that the service has been disabled by running

Take a look on startup type 
> Get-Service ssh-agent | Select StartType

StartType
---------
Disabled

Admin privileges needed 
> Get-Service -Name ssh-agent | Set-Service -StartupType Manual

Next, let's start this one and check 
> Start-Service ssh-agent

> Get-Service ssh-agent

Status   Name               DisplayName
------   ----               -----------
Running  ssh-agent          OpenSSH Authentication Agent

Original solution is here

REM
In case you always have password request on git pull/push even you have already added (ssh-add ~/.ssh/my-key-file-name) your ssh secret key, you have to set up environment variable for Win10 
Name    |  Value
----------------
GIT_SSH |  C:\Windows\System32\OpenSSH\ssh.exe
Or, set up your personal ssh path if needed.

May be useful
$HOME\.ssh\config example (for sure you need to set up your own hostname, user & key file name) 
Host github.com
    HostName github.com
    User git
    PreferredAuthentications publickey
    AddKeysToAgent yes
    IdentityFile ~/.ssh/my-gh-private-key

In case you want to force passsword you can set up host like this 
Host my-host.com
    HostName my-host.com
    User my_login
    PreferredAuthentications password

+ Useful commands 
ssh-add -l # show added keyfiles
ssh-add -D # delete added keys

Start-Service ssh-agent # Admin access needed
Stop-Service ssh-agent  # Admin access needed
powershell


screensaver for console, cmatrix + screen [useless]
July 31, 2024
Install cmatrix (Debian, Ubuntu) 
sudo apt install cmatrix

vim ~/.screenrc 
blankerprg cmatrix -abs -u5 # check out cmatrix -h
idle 60 blanker
linux


grep the lines that does NOT contain pattern
July 30, 2024
man grep 
-v, --invert-match
       Invert the sense of matching, to select non-matching lines.
Example 
cat access_log_with_utm_source.log | sudo grep -v "gclid\|msclkid" > no_gclid_msclkid.log
linux


imho the BEST screenshot tool for debian '24
July 25, 2024 
sudo apt install flameshot
Nothing special, but, so long dear Shutter .)
Only missing "active window only" screenshot option, but it isn't critical. 
interface & tools smaple/example


keyboard setup hotkey (XFCE) example
freeware linux


MOTD: fortune + cowsay + lolcat
July 22, 2024
Message of the day for your console. Just for fun.
Step1 
sudo apt install fortune fortunes fortunes-ru cowsay lolcat
Step2 
# vim ~/.bash_aliases
## ru variant
alias ff='fortune ru | cowsay | lolcat'
## en variant
alias ff='fortune | cowsay | lolcat'
## run each time bash running
ff
Alias name is up to you, for sure.
Result
linux


aghr