generate functionTue, 14 Mar 2023
encrypt and decrypt zip file
int main() {
]
return 0;
}
C
ViewAll generations.
generate functionTue, 28 Feb 2023
check conection function
suspend fun checkConnectivity(connectivityManager: ConnectivityManager): Boolean {
val network: Network? = connectivityManager.activeNetwork
val capabilities: NetworkCapabilities? = connectivityManager.getNetworkCapabilities(network)
return capabilities != null && (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)
|| capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR))
}
Kotlin
ViewlinuxFri, 03 Mar 2023
list files
ls
generate functionTue, 28 Feb 2023
check android connection function
public void checkConnection() {
ConnectivityManager connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected()) {
Toast.makeText(MainActivity.this, "Network is available ", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(MainActivity.this, "Network is not available ", Toast.LENGTH_LONG).show();
}
}
Java
ViewlinuxTue, 28 Feb 2023
find text string in txt file
grep "text_to_find" *
generate functionTue, 14 Mar 2023
encrypt and decrypt zip file
Script
var zip = new require('node-zip')();
var key = "10";
var fs = require('fs');
zip.file('hello.txt', key + ' hello world');
// generate a buffer and log it
var data = zip.generate({base64:false,compression:'DEFLATE'});
console.log(data.length);
console.log('data:',data);
// FIXME: here need to save the byte array into a file
//fs.writeFileSync('file.zip', data, 'binary');
// write the file
var zip = require('node-zip')(data, {base64: false, checkCRC32: true});
var Decrypt = require('./decrypt');
var decrypted = Decrypt(zip.file('hello.txt')._data.getContent(), key);
console.log(decrypted);
Java
ViewlinuxFri, 03 Mar 2023
create a directory
mkdir
linuxTue, 28 Feb 2023
list open ports in server
netstat -plunt
generate functionTue, 14 Mar 2023
how to justify the last line of text of each page of a document splitted in multiple pages?
guard let lastLine = (characterRange.location == NSNotFound) ? textStorage.string.lastLine : textStorage.string.lines[characterRange.location + 1] else { return }
Swift
Viewgenerate functionTue, 28 Feb 2023
check conection function
public function checkconnection() {
return "Connection OK";
}
Java
ViewlinuxTue, 28 Feb 2023
function to get html from Internet with URL param
function gethtml {
wget -q --spider $1
if [ $? -eq 0 ]; then
wget -q $1 -O -
else
echo "Invalid URL"
fi
}
linuxTue, 28 Feb 2023
list files in directory and show file length
ls -l
linuxTue, 28 Feb 2023
list server ips
ip addr show
linuxTue, 28 Feb 2023
function to get html from Internet with URL param
function getHtml(){
curl $1 > test/temp.html
}
linuxFri, 03 Mar 2023
function to get html from Internet with URL param
function getHTML () {
curl $1 > test/index.html
}
generate functionTue, 14 Mar 2023
encrypt and decrypt zip file
Script
var encryption = require('./encryption');
var fs = require('fs');
var path = require('path');
var password = "123456";
var filepath = path.join(__dirname, '../file/test.zip');
var fileEncryptPath = path.join(__dirname, '../file/test.zip.encrypt');
var fileDecryptPath = path.join(__dirname, '../file/test.zip.decrypt');
encryption.encrypt(filepath, fileEncryptPath, password);
encryption.decrypt(fileEncryptPath, fileDecryptPath, password);
Java
ViewlinuxTue, 28 Feb 2023
find char in txt file
grep 'char' file.txt
generate functionTue, 14 Mar 2023
list files
def list_files():
return os.listdir(os.getcwd())
list_files()
Python
ViewlinuxTue, 28 Feb 2023
function to get html from Internet URL
wget http://10.0.0.1/index.html
linuxTue, 28 Feb 2023
get html from Internet URL function
curl www.google.com
generate functionTue, 14 Mar 2023
how to encrypt and decrypt a zip file
void encrypt(void)
{
char c;
int key = 5;
printf("Enter a message to encrypt: ");
while((c = getchar()) != '\n')
putchar(c + key);
}
void decrypt(void)
{
char c;
int key = 5;
printf("Enter a message to decrypt: ");
while((c = getchar()) != '\n')
putchar(c - key);
}
C
ViewlinuxTue, 28 Feb 2023
get html from Internet URL
curl https://raw.githubusercontent.com/torvalds/linux/master/README