dathanb

apply plugin:'groovy'
repositories {
mavenCentral()
}

dependencies{
    implementation 'org.codehaus.groovy:groovy:3.0.4'
    implementation 'net.sourceforge.plantuml:plantuml:8059'
}

dathanb

length=40
forbiddenChars="+*/^"
openssl rand 4096 | \
  LC_ALL=C tr -cd '[:alnum:][:punct:]' | \
  tr -d "${forbiddenChars}" | \
  fold -w "${length}" | \
  head -n 1

dathanb

# Install to ~/bin if it's already on the path; otherwise install to /usr/local/bin
case ":$PATH:" in
  *":$HOME/bin/:"*|*":$HOME/bin:"*)
    INSTALL_DIR="$HOME/bin"
    ;;
  *)
    INSTALL_DIR=/usr/local/bin
    ;;
esac

dathanb

# Mac OS ships with Bash 3.2, which lacks the read -a option, which makes reading into an array easy
# So this is a replacement
lines="first line
second line
third line"

linesArray=()
while read -r line; do
  linesArray+=("$line")
done <<< "${lines}"

dathanb

logFile=~/log

# close stdout and stderr and redirect them to the log file
rm -f "${logFile}"
exec 1<&-
exec 2<&-
exec 1<>"${logFile}"
exec 2>&1

dathanb

public java.lang.String toString() {
#if ( $members.size() > 0 )
    #set ( $i = 0 )
    return "{\"_class\":\"$classname\", " +
    #foreach( $member in $members )
     #set ( $i = $i + 1 )
     #if ( $i == $members.size() )
        #set ( $postfix = "+" )
     #else
        #set ( $postfix = "+ "", "" + " )

dathanb

docker run -e POSTGRES_PASSWORD=password -p 5432:5432 postgres
# then connect to localhost:5432, database postgres, user postgres, password pasword

dathanb

# Try hard to make idempotent calls to services that are a little flaky
function retryableCurl() {
    for i in `seq 1 5`; do
        code="$(curl -s -o /dev/null -w "%{http_code}" "$@")"
        if [[ $? -eq 0 && code -lt 300 && code -ge 200 ]]; then
            return
        fi
    done
    printf "Failed to curl with arguments $*\n"
}

dathanb

// copied from https://nakov.com/blog/2009/07/16/disable-certificate-validation-in-java-ssl-connections/


// Create a trust manager that does not validate certificate chains
TrustManager[] trustAllCerts = new TrustManager[] {new X509TrustManager() {
        public java.security.cert.X509Certificate[] getAcceptedIssuers() {
            return null;
        }
        public void checkClientTrusted(X509Certificate[] certs, String authType) {
        }

dathanb

List files recursively

bash	powershell
find .	ls -rec

Find file by partial filename