If I go back to my original posting, and use this as an sh file:
then everything works: the echo prints correctly, and the java command fully executes.
Great!
But what I really want in my script is for options like the gdb thing to be env vars that can be reused with multiple java invocations. The simplest version of what I really want my build script to look like is
This gives the output
t.sh: line 2: -: command not found
java HelloWorld
Welcome, master
Its clearly not fully correct because it is not using option.
If I change option's line to use escaped spaces
the output is
java -XX:OnError="gdb - %p" HelloWorld
Unrecognized option: -
Could not create the Java virtual machine.
which is again problematic.
This, fortunately, is readily corrected by using quotes around option:
which actually fully works.
Unfortunately, what I really want is a more complicated script that would look like this
Here, I want to build up top level env vars from smaller env vars. Unfortunately, the above script fails again with the usual error ("Unrecognized option: -"). It seems as if every $ substitution causes quoting space nightmares to reappear. This makes it difficult or impossible to sanely build up top level env vars from smaller env vars?
The above results were obtained on both cygwin and linux.
Hi everyone,
I'm trying to write my first ever shell script, the OS is Raspbian. The code I have written must be executed whenever a certain database has been modified. The database resides on a Windows server to which I have a mount point, and I have no control over the Windows server at all so... (2 Replies)
Hi guys,
I have created a csh script which allows user to pass input argument with the script like:
cluster_on_lev3.csh -t <value> -p <value>
Example:
cluster_on_lev3.csh -t 2.3 -p 0.05
Now I want to create an error code where if user passes input argument without spaces , the code... (16 Replies)
Gooday
I have an argument string that contains 15 arguments.
The first 14 arguments are easy to handle because they are separated by spaces
ARG14=`echo ${ARGSTRING} | awk '{print $14}'`
The last argument is a text that may be empty or contain spaces. So any ideas on how I get the last... (23 Replies)
in bash:
LIST=`cat $1`
for i in $LIST
do
...
done
how will i do this in perl ?
$1 is my first arguement. I'm a newbie in perl and will appreciate much your help guys ... (4 Replies)
Hello all, I am relatively new to linux and bash scripting. I have what seems to be a simple question but I'm having trouble finding the answer.
The question is what is the difference between the variables $@ and $*. I've seen them both used in the same context, and I've tried a number of... (4 Replies)
i wanna passing an argument which read in a file or a set of files if the files are given in the command line, otherwise use STDIN if no file argument.
i got something like that, but it is not really working.
so can anyone help me? which one is better to use for and how? Use perl.
Thank you
... (0 Replies)
I tried using the following options to parse the *.sh files in a dir
(the name can contain spaces). But each of them breaks:
FILESSH=$(ls /mysh/*.sh)
echo "$FILESSH" | while read FILE ; do --- do something --; done
This does not break for any whitespaces in filenames
for FILE in... (1 Reply)
Hi all,
Iam a beginer in shell scripting.
i need a script that can parse the arguments and store them in variables.
ex: ./myScript -v v1 -h v2 -c v3......
can someone suggest me...?
tnx in adv. (1 Reply)
how to parse the command line argument to look for '@' sign and the following with '.'.
In my shell script one of the argument passed is email address. I want to parse this email address to look for correct format.
rmjoe123@hotmail.com has '@' sign and followed by a '.'
to be more... (1 Reply)
how to parse the command line argument to look for '@' sign and the following with '.'.
In my shell script one of the argument passed is email address. I want to parse this email address to look for correct format.
rmjoe123@hotmail.com has '@' sign and followed by a '.'
to be more... (1 Reply)