StepIT – Home
I had issues with buster and apt keeps suggesting that I must mark it as old stable, but what I have found as a fix is to delete the cached lists.
cd /var/lib/apt/lists
sudo rm -r *then do a sudo apt-get update that should resolve it.
after this you can do a >sudo apt-get dist-upgrade
npm outdated
npm update
npm install
npm install -g npm-check-updates
and then
ncu -u
npm list -g –depth=0
npm install -g depcheck
depcheck
npm uninstall
We get so used to the data structures in more modern languages that its frustrating using old Delphi 7 but I will show you how you can at least create a list map like structure using TStringList.
var
KeyValuePairsSample: TStringList;
iIndex : integer;
sname, svalue, svalueindex: string;
begin
KeyValuePairsSample := TStringList.Create;
KeyValuePairsSample.Clear;
KeyValuePairsSample.NameValueSeparator := '=';
KeyValuePairsSample.Add('ZERO=0'); // name=value pair //
KeyValuePairsSample.Add('ONE=1');
KeyValuePairsSample.Add('TWO=2');
KeyValuePairsSample.Add('THREE=3');
KeyValuePairsSample.Add('FOUR=4');
KeyValuePairsSample.Add('FIVE=5');
Memo1.Clear;
Memo1.Lines.Add(KeyValuePairsSample.Names[1]);
Memo1.Lines.Add(KeyValuePairsSample.Values['THREE']);
Memo1.Lines.Add(KeyValuePairsSample.Names[0]);
Memo1.Lines.Add(inttostr(KeyValuePairsSample.IndexOfName('THREE')));
Memo1.Lines.Add(KeyValuePairsSample.ValueFromIndex[KeyValuePairsSample.IndexOfName('THREE')]);
KeyValuePairsSample.free;
end;
Output:
ONE
3
ZERO
3
3
I very often have to start a process on Linux and logout leaving it running. I used to do a nohub.
nohub /path/to/some/pogram &This does work but seeing the output of it you probably have to pipe the output to file like
nohub /path/to/some/pogram > /path/to/output &But i will show you a better way SCREEN to the rescue to install:
sudo apt-get install screenthen simply run screen before you run the process and to disconnect the terminal and leave it running do a CRTL-A D which will take you back to the calling shell and you can log out leaving it running. You can do this with multiple processes.
to access it again type
screen -r
There are several suitable screens on:
6078.your-server-detail (SOMEDATE) (Detached)
4249.your-server-detail (SOMEDATE) (Detached)
and to reconnect do
screen -r 4249This is ideal if you have to start some docker processes on remote servers.
To stop all docker containers:
$ docker stop $(docker ps -a -q)
Then to remove all docker containers:
$ docker rm $(docker ps -a -q)
To remove all docker images:
$ docker rmi $(docker images -q)
Stop specific docker container:
docker ps -a
then copy container is ie: c38ba5c03ab7
docker stop c38ba5c03ab7
Run bash shell in docker image:
$ docker exec -it RUNNING_CONTAINER_NAME /bin/bash
const obj = {"1":"5","2":7,"3":9,"4":155,"6":"189","7":587,"8":"455","9":"89","10":"80","12":"887.6","13":89,"14":9}
const objToArr = Object.keys(obj).map(function(key) {
return [key, Number(obj[key]) ];
});
console.log(objToArr)
/*
[ [ '1', 5 ],
[ '2', 7 ],
[ '3', 9 ],
[ '4', 155 ],
[ '6', 189 ],
[ '7', 587 ],
[ '8', 455 ],
[ '9', 89 ],
[ '10', 80 ],
[ '12', 887.6 ],
[ '13', 89 ],
[ '14', 9 ] ]
*/
let resultObj = objToArr.reduce(function(result, item, index, array) {
Object.assign(result, { [ item [ 0 ] ]:item[1]} )
return result;
}, {}) //watch out the empty {}, which is passed as "result"
console.log(resultObj)
/*
{ '1': 5,
'2': 7,
'3': 9,
'4': 155,
'6': 189,
'7': 587,
'8': 455,
'9': 89,
'10': 80,
'12': 887.6,
'13': 89,
'14': 9 }
*/
resultObj2 = {...objToArr};
console.log(resultObj2)
/*
{ '0': [ '1', 5 ],
'1': [ '2', 7 ],
'2': [ '3', 9 ],
'3': [ '4', 155 ],
'4': [ '6', 189 ],
'5': [ '7', 587 ],
'6': [ '8', 455 ],
'7': [ '9', 89 ],
'8': [ '10', 80 ],
'9': [ '12', 887.6 ],
'10': [ '13', 89 ],
'11': [ '14', 9 ] }
*/
Let’s take a look at our ls -l output and look the first column of the listing:
touch myfile
ls -l myfile
-rw-rw-r-- 1 hano hano 0 Apr 16 08:57 myfile
sudo chown hano.root myfile
ls -l myfile
-rw-rw-r-- 1 hano root 0 Apr 16 08:57 myfile
The you have 3 access value bits in this case rw- for the owner in this case hano then rw- for the group which corresponds to the root group and then all other users r–.
| r | Read Access |
| w | Write Access |
| x | Execute Access |
To change the access use chmod (Change Mod)
chmod 754 myfile
ls -l myfile
-rwxr-xr-- 1 hano root 0 Apr 16 08:57 myfile
| Mode | Decimal |
| rwx | 7 |
| rw- | 6 |
| r-w | 5 |
| r– | 4 |
| -wx | 3 |
| -w- | 2 |
| –x | 1 |
| — | 0 |
If you know binary you will notice that it is the decimal value of binary digits 001 = 1 010 = 2 100 = 4 so combinations will then be 101 = 4 + 1 = 5 corresponding to r-w
If you have ASP code like Server.CreateObject(“ADODB.Connection”) and it does not work on your 64 Bit Server I had to do the following to fix:
I have first download and installed MDAC from M$ https://www.microsoft.com/en-us/download/details.aspx?id=5793
After installing IIS: Go to the application pool associated with your web site -> advance Settings and enable 32bit applications.
The default Firefox / Chromium browsers that ship with your linux distro does not work for Showmax / Netflix.
It is easy to fix though. You would have to download Google Chrome from Google’s site : https://www.google.com/chrome/
After you click on the download button select the OPEN WITH option:
function Desciples(firstname, attributes) {
this.firstname = firstname;
this.attributes = attributes;
this.listAttributes = function() {
return this.attributes.map(function (attrib) {
console.log(this.firstname + " did " + attrib);
});
};
}
let desciple1 = new Desciples("John", [
"Author of Gospel of John ",
"Author of Reveleations",
"Desicple that Jesus loved"
]);
desciple1.listAttributes();
retuns
"undefined did Author of Gospel of John "
"undefined did Author of Reveleations"
"undefined did Desicple that Jesus loved"
But if we change it to
this.listAttributes = function() {
return this.attributes.map(attrib => {
console.log(this.firstname + " did " + attrib);
});
"John did Author of Gospel of John "
"John did Author of Reveleations"
"John did Desicple that Jesus loved"
We can also create local variable to the function and assign this to it
this.listAttributes = function() {
self = this;
return this.attributes.map(function (attrib) {
console.log(self.firstname + " did " + attrib);
});
};
We can also use the BIND on the function like:
this.listAttributes = function() {
return this.attributes.map(function (attrib) {
console.log(this.firstname + " did " + attrib);
}.bind(this));
};
Or the MAP has a second paramenter and we can pass this there that will also work
this.listAttributes = function() {
return this.attributes.map(function (attrib) {
console.log(this.firstname + " did " + attrib);
},this);
};