All Questions
Tagged with shell-script java
38 questions
0
votes
1
answer
384
views
Shell script not picking up variable in if statement
I have some code that looks like this:
################### - Let's call this section 1
if [ -n "$STUFF_JAVA" ]; then
__LAUNCHER="$STUFF_JAVA"
else
__LAUNCHER="...
0
votes
0
answers
23
views
My variable seems to change when passed into a CLI [duplicate]
I am attempting to use a java based program, CRFVoter, for text mining. I called and executed the script as specified.
[user]$ java -jar CRFVoter.jar
usage: CRFVoter GPRO
Command Line Tool for ...
- 21
1
vote
2
answers
11k
views
-bash:: /bin/bash: bad interpreter: Operation not permitted
I recently replaced adoptopenjdk-13 with adoptopenjdk-16. I have a script file that uses the tool by name, so I changed it from 13 to 16. Its new contents:
#!/bin/bash
if [ -z ${JAVA_OPTS+x} ]
then
...
- 217
-1
votes
2
answers
758
views
How to get all the contents of df -h command as string
I want to have a CRON job which calls a Java program to send a mail if disk space is more than 80%.
Along with it, I want to send the contents of the df -h command also. What I did was create a ...
- 1
2
votes
1
answer
1k
views
Why are environment variables not resolved when double-clicking .desktop file?
I have a Java application which is launched by a shell script.
The first part of the shell script is to resolve the Java location by looking at $JAVA_HOME.
The shell script is working well if launched ...
- 193
6
votes
2
answers
15k
views
setting JAVA_HOME and PATH with update-alternatives
EDITED
The question was more about bash script them java environment and thanks for those whom had the patience and spare the time to reply me. I am much obliged.
As for the Java environment I started ...
- 161
1
vote
1
answer
96
views
When would [[ ]] test fail and [ ] succeeds for the same test?
I came across a script that has the line:
java_version=$($JAVA_HOME/bin/java -version 2>&1 | awk -F '"' '/version/ {print $2}' | cut -d '_' -f 1,3)
followed by the test:
if [[ -n "$...
- 614
0
votes
1
answer
47
views
Script Integer getting prefixed with "
I am running a jar file using a very basic shell script (I literally just need this to run on startup of a NAS). However, I am getting some rather unexpected behavior:
Script looks like this:
java -...
0
votes
1
answer
780
views
bash file contain executable/binary code
I found this tool and when I downloaded it is a bash executable that contains binary code.
First of all I didn't know this is possible. Does anyone know who this can be done? Also I am not sure how ...
- 1,479
0
votes
1
answer
714
views
I can check output of a command in shell script but I cannot do the same in crontab
I can run my script as .sh file in ubuntu shell but it does not work when it is called from cron job.I run my script into an ubuntu container (using docker) as
if [ `java -jar /path/to/my.jar |grep -...
- 21
0
votes
1
answer
798
views
Linux start screen and run a java program and detach it?
I have the following script that should do the following:
Stop screen "server" if exists
Start screen "server"
Run a java program and detach screen.
However, when I firstly run the script, the program ...
1
vote
1
answer
2k
views
How to check java version on multiple servers? [duplicate]
I have 100 servers and i need to login to them with ssh from central server using script: i tried below with this i should get the version redirected to the file which will be stored at central server....
- 386
0
votes
1
answer
62
views
linux + compare between two folders
under /usr/lib/ambari-metrics-get folder and /usr/lib/ambari-metrics-put
we have jar files
/usr/lib/ambari-metrics-get/stax-api-1.0.1.jar
/usr/lib/ambari-metrics-get/stringtemplate-3.2.1.jar
/usr/...
- 14k
0
votes
1
answer
1k
views
Pass array to Java from Shell Script
I have data as below which I want to pass directly to Java main method from shell script at once.
1 firstfile.txt Success
2 secondfile.txt Failed
3 thirdfile.txt Success
I know I can call ...
- 101
1
vote
1
answer
703
views
how to find the higher java version on linux machine with bash or shell script
we need to test and compare java versions
any suggestion for tricky way how to verify if $version > $New_version ?
[root@master tmp]# version=$(java -version 2>&1 | awk -F '"' '/version/ {...
- 14k