07-14-2009
Quote:
Originally Posted by
columb
Thanks for advice! Yeah, I've done "while" loop today and there is no way that this script is called more than once (I've started it manually).
I'm still curious why segfault? What's wrong with simple "goto"?
Is it bad practice to call function within a function?
A shell script alone should never segfault no matter how incorrect it is. As such, I doubt specific lines of code are responsible. Either you have memory errors, or the shell has a bug, or ran out of memory.
It is kind of bad practice to call a function from itself recursively with no exit strategy, that is, no way a function can terminate without calling itself. That just eats memory forever since it gets called thousands of times but never, ever returns. But I wouldn't think it would run out of memory THAT quickly.[/QUOTE]
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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)