I had the bash script where in I had to launch the application ide command and then the >>> appears in the terminal where in I had to execute the commands such as in script file
#!/bin/bash
OMShell-terminal
loadModel(Modelica)
loadFile("Filename")
simulate(filename, startTime, stopTime)
but after loading the OMShell-terminal I will get the >>>to input the commands here but the shell script would not let me to input the commands here from shell script itself what modification I should do please guide.
Related
I need some help:
(On macos, bash shell)
If I run a .sh file which calls e.g. exit 1 (any exit code) my terminal session ends (and the iterm2 tab/window closes).
I'm calling the script like this $ . myscript.sh
I'm pretty sure it should not be like that or was not like this a while before.
Using:
. myscript.sh
You are actually running the script in the existing shell or "sourcing" the script. With exit at the end of the script, this means that the terminal session will also exit
Alternatively:
./myscript.sh
or
bash myscript.sh
Will run the script in a separate bash shell and stop the terminal session from exiting.
Instead of . myscript.sh you can run ./myscript.sh which will run it in a separate bash shell and will not exit the current session.
If you control the content of this .sh file, and you do want to source the script - simply return 1 instead of exit 1, and use proper error handling.
I'm novice to running bash script. (you can suggest me, if title I've given is incorrect.)
I want to run a jar file using bash script in loop. Then it should write the output of jar command into some file.
Bash file datagenerate.sh
#!/bin/bash
echo Total iterations are 500
for i in {1..500}
do
the_output="$(java -jar data-generator.jar 10 1 mockData.csv data_200GB.csv)"
echo $the_output
echo Iteration $i processed
done
no_of_lines="$(wc -l data_200GB.csv)"
echo "${no_of_lines}"
I'm running above script using command nohup sh datagenerate.sh > datagenerate.log &. As I want to run this script in background, so that even I log out from ssh it should keep running & output should go into datagenerate.log.
But when I ran above command and hit enter or close the terminal it ends the process. Only Total iterations are 500 is getting logged into output file.
Let me know what I'm missing. I followed following two links to create above shell script: link-1 & link2.
nohup sh datagenerate.sh > datagenerate.log &
nohup should work this way without using screen program, but depending on your distro your sh shell might be linked to dash.
Just make your script executable:
chmod +x datagenerate.sh
and run your command like this:
nohup ./datagenerate.sh > datagenerate.log &
You should check this out:
https://linux.die.net/man/1/screen
With this programm you can close your shell while a command or script is still running. They will not be aborted and you can pick the session up again later.
As an example, I am trying to capture the raw commands that are output by the following script:
https://github.com/adampointer/go-deribit/blob/master/scripts/generate-models.sh
I have tried to following a previous answer:
BASH: echoing the last command run
but the output I am getting is as follows:
last command is gojson -forcefloats -name="${struct}" -tags=json,mapstructure -pkg=${p} >> models/${p}/${name%.*}_request.go
What I would like to do is capture the raw command, in other words have variables such as ${struct}, ${p} and ${p}/${name%.*} replaced by the actual values that were used.
How do I do this?
At the top of the script after the hashbang #!/usr/bin/env bash or #!/bin/bash (if there is any) add set -x
set -x Print commands and their arguments as they are executed
Run the script in debug mode which will trace all the commands in the script: https://stackoverflow.com/a/10107170/988525.
You can do that without editing the script by typing "bash generate-models.sh -x".
I am trying to execute the below shell commands from PuTTY
PACKAGEPATH=/data/dev/bwan/deliveryPackage
RELEASENAME=R201709TEST3
PACKAGEFINALPATH=$PACKAGEPATH/$RELEASENAME
echo $PACKAGEPATH
echo $RELEASENAME
echo $PACKAGEFINALPATH
and I get the desired output as
/data/dev/bwan/deliveryPackage
R201709TEST3
/data/dev/bwan/deliveryPackage/R201709TEST3
However, If I am putting the same steps in a shell File and then executing that shell Script, it is giving me unexpected responses as
/data/dev/bwan/deliveryPackage
R201709TEST3
/R201709TEST3n/deliveryPackage
Why is this happening?
In this expect script there will be no ssh server connected, I just want to execute a ".sh" file locally, is that possible?
For instance:
#!/bin/expect
command "xxx.sh" # a command which starts a certain shell script
Also, is it possible to execute a expect script within a expect script?
For instance:
#!/bin/expect
command "xxx.exp" # a command which starts a certain expect script
Any help?
If you need to interact with this script, use spawn xxx.sh
If you just need to run it and capture the output, use set output [exec xxx.sh]
Expect is an extension of the Tcl language, so you would be well served to go through the Tcl tutorial.
The command in Expect to run a shell command is spawn.
#!/bin/expect
spawn command arg1 arg2 ...
command can be any program -- a binary executable, a shell script, another expect script, etc. So you can do:
spawn xxx.sh
or:
spawn xxx.exp