10-24-2007
Quote:
Originally Posted by
Perderabo
This is quite a mess. I don't see an easy way to fix it. I think a complete redesign is in order. The crux of your problem is code like:
player1hand=`deal_hole`
The shell must launch a sub-shell to process the `deal_hole` part. Within this subshell you mark some cards as being delt. Then the subshell exits and the main shell does know which cards were delt. You can't write a function that modifies global data and then invoke it in a subshell.
Good info Perderabo...
What would you suggest to keep things in order? Could I put the entire "play" code (meaning the part that is dealing and whatnot) into a single function?
I am not really strong with arrays, but if you could point me in the right direction I can probably figure it out.
Edit: Putting the play section to a function did not work, but I now see what you are talking about with the $player1hand issue spawning a subshell. What's a better way to save the player's hands so they can be referenced at the end of the script?
Edit2: Not assigning the output of the function (such as deal_hole) to a variable solves the problem, but I would like a way to reference the output later... is it possible?
Edit3: Ok, here's an idea... I'm having trouble finding if this is possible, but could I run the 'deal_hole' function and have the output send to stdout and then also redirected to a file that could be called later?
Last edited by earnstaf; 10-24-2007 at 03:49 PM..
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RBASH(1) General Commands Manual RBASH(1)
NAME
rbash - restricted bash, see bash(1)
RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a file name containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO
bash(1)
GNU Bash-4.0 2004 Apr 20 RBASH(1)