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Full Discussion: Need a little help with assignment
Top Forums UNIX for Dummies Questions & Answers Need a little help with assignment Post 302902135 by bsn3971 on Monday 19th of May 2014 01:32:45 AM
Old 05-19-2014
Need a little help with assignment
Hello all im currently working on this assignment and a little stump on how to check for an argument heres the instructions:
Step 4:
Modify your script so that if there is an argument called TestError you display the following error message with your usage statement.
TestError found
Example:
$ ./template.sh xxx TestError zzz
Sun May 5 11:28:46 PDT 2013
xxx
*****
usage: ./template.sh argument ...
ERROR: TestError found
*****
zzz
*****
this is the current code im working with
Code:
# template.sh - edit this file
function usage
{
  echo "usage: $0 arguments ..."
  if [ $# -eq 1 ]
  then echo "ERROR: $1"
  fi
}

# Your script starts after this line.
if [ $# -eq 1 ]
then usage
else
name=""
echo $name
date
while [ $# -gt 0 ]
do
 if [ $# -gt 0 ]
 then
  arg=$1
  echo
  echo $1
  echo "*****"
 else
  echo
  usage "Could not find file $1"
 fi
 shift
 done
fi

any help/guidance would be appreciated thanks in advanced
 

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LEARN ABOUT SUNOS

echo

echo(3XCURSES)						  X/Open Curses Library Functions					    echo(3XCURSES)

NAME

       echo, noecho - enable/disable terminal echo

SYNOPSIS

       cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib 
       -R /usr/xpg4/lib -lcurses [ library... ]

       c89 [ flag... ] file... -lcurses [ library... ]

       #include <curses.h>

       int echo(void);

       int noecho(void);

DESCRIPTION

       The  echo()  function enables Echo mode for the current screen. The noecho() function disables Echo mode for the current screen. Initially,
       curses software echo mode is enabled and hardware echo mode of the tty driver is disabled. The echo() and noecho() functions control  soft-
       ware echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined.

RETURN VALUES

       Upon successful completion, these functions return OK. Otherwise, they return ERR.

ERRORS

       No errors are defined.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Unsafe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), scanw(3XCURSES), attributes(5), standards(5)

SunOS 5.10							    5 Jun 2002							    echo(3XCURSES)
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