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Full Discussion: Create script to add user and create directory
Homework and Emergencies Homework & Coursework Questions Create script to add user and create directory Post 302506513 by m1xram on Monday 21st of March 2011 04:24:30 AM
Old 03-21-2011
groupadd useradd
Couple of thoughts. Once you find that a department doesn't exist and create the directory for, it you may wish to create a group for it with 'groupadd'. Then set the GID to the newly created group.

A similar situation should be done for the user directory although you should create the directory with 'useradd'. 'useradd -g GROUP' will make sure the directory has the correct GID. Use the '-K UMASK=026' to make sure newly created files have the correct permissions. You'll have to look up how UMASK works. In this environment you may prefer 027 for more security.

A better way to handle the departments would be to create a list of valid existing departments. It would reduce spelling errors. The last option in the list could be "(N)ew department".

Code:
#!/bin/ksh
# root check code below
#deptroot=/home
deptroot=/home/wolverines
i=0
dept=()
echo "Department:"
find $deptroot -maxdepth 1 -type d | sort | while read x ;do
    bn=$(basename "$x");
    dept[$i]="$bn"
    i=$(($i + 1))
    echo "$i) $bn"
done
echo ""
echo -n "Enter number of department or 'n' for new department: "
read ans
echo "${dept[*]}"
if [[ "$ans" =~ ^[0-9]+$ ]]; then
    echo "Numeric $ans $i"
    if [ $ans -lt $i ]; then 
       echo "In range"
       d="${dept[$(($ans - 1))]}"
       echo "Department: $d"
    fi
elif [ "$ans" == "n" ]; then
    echo "Prompt for new department"
    # assign d=DEPARTMENT
    # make sure it doesn't exist.. if exists exit
    # groupadd $d
    # mkdir "$depthome/$d"
    # chgrp $d "$depthome/$d"
else
    echo "bad input"
    exit 1
fi

Output Example:
Code:
$ ./test.sh 
Department:
1) History
2) Math
3) PhysEd
4) Science
5) Zoology

Enter number of department or 'n' for new department: 3
History Math PhysEd Science Zoology
Numeric 3 5
In range
Department: PhysEd

Sorry but I had to use KSH as BASH has a bug with pipes and while loops spawning subprocesses. BASH can't see what happened in the loop after the loop.

Lastly I'd add a check for the user ID at the beginning of your script.
Code:
if [ "$(id -u)" != "0" ]; then
    echo "This script must be run as root" 1>&2
    exit 1
fi

Only people with root access should be able to run any of this.
 

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LEARN ABOUT SUNOS

echo

echo(1B)					     SunOS/BSD Compatibility Package Commands						  echo(1B)

NAME

       echo - echo arguments to standard output

SYNOPSIS

       /usr/ucb/echo [-n] [argument]

DESCRIPTION

       echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.

       echo  is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
       ronment variables.

       For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:

	 o  echo your current-working-directory's full pathname

	 o  pipe the output through tr to translate the path's embedded slash-characters into space-characters

	 o  pipe that output through wc -w for a count of the names in your path.

	      example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"

       See tr(1) and wc(1) for their functionality.

       The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be  invoked	if
       the  user  calls  echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
       characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the  black-slashed  escape  characters,	and  ksh's
       echo() also understands a as the audible bell character; however, these commands do not have an -n option.

OPTIONS

       -n	Do not add the NEWLINE to the output.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), echo(1), ksh(1), sh(1), tr(1),  wc(1), attributes(5)

NOTES

       The -n option is a transition aid for BSD applications, and may not be supported in future  releases.

SunOS 5.10							    3 Aug 1994								  echo(1B)
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