03-13-2007
Multiple platform scripts
Hello
I'm writing a script system in bash that I want to run on Un*x (SunOS), Linux, and cygwin also.
The scripts starts with the sha-bang #!/bin/bash, but I experienced that the bash interpreter path are different on these platforms.
My question is how can I manipulate the command interpreter line on my scripts
to run on each platform.
(I think to made a setup script to replace the first line in all of my scripts depending on the platform on which I'm running the scripts)
I also tried the:
#!/bin/bash
#!/usr/bin/local/bash
but if the command interpreter path are not correct in the first line, the OS does not looks for the command interpreter in the second line.
Many thanks beforehand
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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 filename 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)