How to print all jar results into a file using bash script

Question

I've been trying to do this simple script that I wrote where it runs an executable jar file that I made. The command of the script are as follows:

#!/bin/bash
msisdn=$1

java -cp /home/support/phuzca/Migration/PostpaidXMigration_lib/ -jar /home/support/phuzca/Migration/PostpaidXMigration.jar $msisdn /home/support/phuzca/Migration/config.properties /opt/tomcat9/webapps/axis2/WEB-INF/classes/META-INF/PlanID.xml

The jar file works as expected and I receive the expected results:

The idea that I've been trying to figure out is how to prevent those texts from appearing when I run my script, and instead, print them in a file so it can be reviewed later. I hope you could open up some ideas for me. Thank you very much.

I already tried that but those logs and exceptions still appears after I ran the script — Uzi
– Uzi, Commented Dec 8, 2017 at 5:51
I have added explanations and redirection of both stderr and stdout in `Unix — Allan
– Allan, Commented Dec 8, 2017 at 5:57

Vishnu T S · Accepted Answer · 2017-12-08 06:02:45Z

4

Redirect the output to a file:

migrateToPstopaidX.sh > output.log

if you want to redirect stderr use this

  migrateToPstopaidX.sh &> output.log

you can use this >> to append the log instead of >

edited Dec 8, 2017 at 6:02

answered Dec 8, 2017 at 5:46

Vishnu T S

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3 Comments

Uzi Over a year ago

I already tried that but those logs and exceptions still appears after I ran the script

Uzi Over a year ago

I haven't tried this one. I'll try it right away. Thank you.

Uzi Over a year ago

Can't believe I struggled with this for a day. It worked just like how I wanted to. Thank you very much.

Allan · Accepted Answer · 2017-12-08 05:54:20Z

1

Redirect both stdout and stderr to the output file.

migrateToPstopaidX.sh > output.log 2>&1

You can use >> to append instead of overwriting your file.

Bash executes the redirects from left to right as follows:

>: Open output.log in overwrite mode and redirect stdout there.
2>&1: Redirect stderr to "where stdout is currently going". In this case, that is a file opened in append mode. In other words, the &1 reuses the file descriptor which stdout currently uses.

answered Dec 8, 2017 at 5:54

Allan

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