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Full Discussion: From bash to csh and zsh
Top Forums Shell Programming and Scripting From bash to csh and zsh Post 302135571 by lev_lafayette on Monday 10th of September 2007 07:25:49 PM
Old 09-10-2007
From bash to csh and zsh
... Am I glad to find this forum (and vBulletin too, nice!)..

OK, here's my issue. I have been handballed a bash script, not pretty but functional. I need to change to csh and zsh. For the csh I have the basics (e.g., such as change if/fi to if/endif, quote the variables, and bracket commands). For zsh (ahem), I have no idea and googling for resources hasn't been helpful.

So rather than bash (pun not intended) my head against a screen I decided to see if anyone here is more familiar with this fairly simple conversion process..

Anyway here's the bash.. I need csh and zsh to do the same:

Code:
#!/bin/bash
if echo $HOSTNAME | egrep -q '^somebox0' ; then
        if [ ! $PUBLIC_ENVIRONMENT ];
                then if [ $USER != "root" ];
                        then if grep -sq $USER /usr/local/etc/localusers.$HOSTNAME ;
                                then echo ' *** Interactive access permitted - be nice to others!'
                        else
                                echo ' *** Interactive logins are not permitted on this machine - use PUBLIC instead!'
                                exec /bin/false
                        fi;
                fi;
        fi;
fi;

 

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LEARN ABOUT SUNOS

setusershell

getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME

       getusershell, setusershell, endusershell - get legal user shells

SYNOPSIS

       #include <unistd.h>

       char *getusershell(void);

       void setusershell(void);

       void endusershell(void);

DESCRIPTION

       The  getusershell()  function  returns  a  pointer  to  a  legal  user  shell  as defined by the system manager in the file /etc/shells. If
       /etc/shells does not exist, the following locations of the standard system shells are used in its place:

       /bin/bash		  /bin/csh
       /bin/jsh 		  /bin/ksh
       /bin/pfcsh		  /bin/pfksh
       /bin/pfsh		  /bin/sh
       /bin/tcsh		  /bin/zsh
       /sbin/jsh		  /sbin/pfsh
       /sbin/sh 		  /usr/bin/bash
       /usr/bin/csh		  /usr/bin/jsh
       /usr/bin/ksh		  /usr/bin/pfcsh
       /usr/bin/pfksh		  /usr/bin/pfsh
       /usr/bin/sh		  /usr/bin/tcsh
       /usr/bin/zsh		  /usr/xpg4/bin/sh

       The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells.

       The setusershell() function rewinds the file or the list.

       The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells.

RETURN VALUES

       The getusershell() function returns a null pointer on EOF.

BUGS

       All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved.

SunOS 5.10							    30 Aug 2004 						  getusershell(3C)
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