install java jdk.

find downloads page and get latest tarball. https://www.oracle.com/java/technologies/downloads/

wget https://download.oracle.com/java/19/latest/jdk-19_linux-x64_bin.tar.gz
tar -xvf downloaded_file

move the extracted folder to /opt put the extracted location in your path variable

export JAVA_HOME=/opt/jdk-19.0.1
export PATH=$PATH:$JAVA_HOME/bin

java --version to test

install gradle (optional)

Gradle wrapper (gradlew) is included in the repo, so manual Gradle installation is not required. If you prefer to install Gradle system-wide:

wget https://services.gradle.org/distributions/gradle-8.5-bin.zip
unzip -d /opt/gradle gradle-8.5-bin.zip
export PATH=$PATH:/opt/gradle/gradle-8.5/bin
gradle -v

clone this repo

git clone https://gitea.hptrow.me/pt/jrunner.git
cd jrunner

build

./gradlew build

deploy

using the deploy script (recommended)

Run the interactive deploy script:

./deploy.sh

The script will prompt you to choose:

1. Local install - Fast, no sudo required, installs to ./jrunner/build/install/jrunner
2. Global install - Installs to /opt/jrunner with symlink at /usr/local/bin/jrunner
3. Custom directory - Prompts for path with tab-completion support

The script builds, extracts to a temporary location, and only updates the target directory after the build succeeds. This ensures your existing deployment stays intact if the build fails.

manual deployment

./gradlew build
sudo unzip jrunner/build/distributions/jrunner.zip -d /opt/
sudo ln -sf /opt/jrunner/bin/jrunner /usr/local/bin/jrunner

Or for local testing:

./gradlew installDist
# Binary at: ./jrunner/build/install/jrunner/bin/jrunner

usage

Query Mode (new in v1.1)

Query mode outputs results to stdout for piping to visidata, pspg, or less. It activates automatically when destination flags are omitted.

Basic query to CSV:

jrunner -scu "jdbc:as400://hostname" -scn user -scp pass -sq query.sql

Pipe to visidata:

jrunner -scu "jdbc:as400://hostname" -scn user -scp pass -sq query.sql | visidata -f csv

TSV format:

jrunner -scu "jdbc:as400://hostname" -scn user -scp pass -sq query.sql -f tsv

SQL Server example:

jrunner -scu "jdbc:sqlserver://hostname:1433;databaseName=mydb" -scn user -scp pass -sq query.sql

PostgreSQL example:

jrunner -scu "jdbc:postgresql://hostname:5432/dbname" -scn user -scp pass -sq query.sql

Migration Mode

Full migration mode with both source and destination:

jrunner -scu jdbc:postgresql://source:5432/sourcedb \
        -scn sourceuser \
        -scp sourcepass \
        -dcu jdbc:postgresql://dest:5432/destdb \
        -dcn destuser \
        -dcp destpass \
        -sq query.sql \
        -dt public.target_table

Command-line flags

Source connection:

• -scu - source JDBC URL
• -scn - source username
• -scp - source password
• -sq - path to source SQL query file

Destination connection (migration mode only):

• -dcu - destination JDBC URL
• -dcn - destination username
• -dcp - destination password
• -dt - fully qualified destination table name

Options:

• -t - trim text fields (default: true)
• -c - clear target table before insert (default: true)
• -f - output format: csv, tsv (query mode only, default: csv)