Need some help with this... Post: 302138256

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Top Forums Programming Need some help with this... Post 302138256 by Legend986 on Sunday 30th of September 2007 06:57:13 PM

09-30-2007

Registered User

I tried out a short example:

Code:

 fp = popen("alias","r");
            if(fp == NULL)
            {
                  printf("Handle Error");
            }
            printf("You asked for an alias");
            while(fgets(alia,20,fp) != NULL)
            printf("%s",alia);
            pclose(fp);

It goes upto "You asked for an alias" and quits... alia is a "char alia[1024];" definition and fp is a file pointer... Am I doing something wrong?

Edit: It outputs the data if I use something else other than alias. For example, something like netstat. I'm getting some error when I try to directly put something like alias ls. It says:

sh: line 1: alias: ls: not found

Last edited by Legend986; 09-30-2007 at 08:33 PM..

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shells

shells(4)							   File Formats 							 shells(4)

NAME

       shells - shell database

SYNOPSIS

       /etc/shells

DESCRIPTION

       The shells file contains a list of the shells on the system. Applications use this file to determine whether a shell is valid. See getuser-
       shell(3C). For each shell a single line should be present, consisting of the shell's path, relative to root.

       A hash mark (#) indicates the beginning of a comment; subsequent characters up to the end of the line are not interpreted by  the  routines
       which search the file. Blank lines are also ignored.

       The following default shells are used by utilities: /bin/bash, /bin/csh, /bin/jsh, /bin/ksh, /bin/ksh93, /bin/pfcsh, /bin/pfksh, /bin/pfsh,
       /bin/sh, /bin/tcsh, /bin/zsh, /sbin/jsh, /sbin/sh, /usr/bin/bash, /usr/bin/csh, /usr/bin/jsh, /usr/bin/ksh, /usr/bin/ksh93, /usr/bin/pfcsh,
       /usr/bin/pfksh, /usr/bin/pfsh, and /usr/bin/sh, /usr/bin/tcsh, /usr/bin/zsh, and /usr/sfw/bin/zsh. /etc/shells overrides the default list.

       Invalid shells in /etc/shells could cause unexpected behavior, such as being unable to log in by way of ftp(1).

FILES

       /etc/shells    list of shells on system

SEE ALSO

       vipw(1B), ftpd(1M), sendmail(1M), getusershell(3C), aliases(4)

SunOS 5.11							    20 Nov 2007 							 shells(4)