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Old 03-13-2013, 07:37 AM   #1
Batistuta_g_2000
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Registered: Oct 2011
Posts: 85
Blog Entries: 1

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case function for no-argument - default function for script?


I need to write a one script which does a number functions with these options in any order.

backup *default file to be restored (no options)
backup *change default config file location
backup *errorlogging only
backup *fullerrorlogging

restore *default last backup restored
restore *restore by filename
restore *list all backups
restore *list backups by name
restore *list contents of last backup
restore *change default restore location to new one
restore *carry out diff on tar contents

My solution is to write functions for each task in script but how should I parse the options to the script - was thinking of the case within a case below - is this the best way to go - will I have problems? is there an easier way?

But main question is how do you run a case with no options - as in a default action for the script below -

z={(( $# )) || printf '%s\n' 'No arguments'}
echo "$z"

Then use "$z" as an option??? would this work?


Code:
#!/bin/bash
# set -xv
######################################################
#        Setting up variables for script             #
######################################################

z={(( $# )) || printf '%s\n' 'No arguments'}
echo "$z"

while getopts "b:r:h" OPTION; do
               case "$OPTION" in  
                       
                  b)
#                if [[ ! $OPTARG ]]; then echo "No option."
#                else 
                  case "${OPTARG}" in 
                                                                                      
                        f)
                            echo "LOGFLAG=false"
                            echo "FULL_LOGGING=true"
                            echo "logging_option"
                           # [[ ! $OPTARG ]] && echo "No option."
                        ;;                         
                        e)
                           echo "ERRORLOGGING AS NORMAL"  
                        ;;
                  esac;;
                  
                  r)
                  case "${OPTARG}" in
                              
                       name)
                             echo "restore_filename"
                             ;;                             
                     latest)
                             echo "restore_latest"
                             ;;
                    listall)
                             echo "listall"
                             ;;
                    project)
                             echo "project_timestamp"
                             ;;  
               lastcontents)  
                             echo "last_contents"
                             ;;
                  directory)
                             echo "RESTORE_FILES_DIRECTORY="    
                             ;; 
                    compare)
                             echo "Compare"
                             ;;
                   esac;;      
                          
           h)
            echo " help_action"
           ;;
         ?)
            echo "HELLP HELP"
          ;;   
        "$z")
          echo "NO ENRTY"
         ;;
    
esac
 
Old 03-13-2013, 08:22 AM   #2
lleb
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Registered: Dec 2005
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Distribution: CentOS/Fedora
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check out getopts you might like that.
 
Old 03-13-2013, 08:53 AM   #3
Batistuta_g_2000
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Registered: Oct 2011
Posts: 85
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Original Poster
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Quote:
Originally Posted by lleb View Post
check out getopts you might like that.
I have getopts but how to pass arguments to script functions? and in what order is they can be added to case in any order how do you know which $# to parse to which function?
 
Old 03-13-2013, 11:00 AM   #4
Batistuta_g_2000
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Registered: Oct 2011
Posts: 85
Blog Entries: 1

Original Poster
Rep: Reputation: Disabled
Help?!!

How can I set the case to pick either b or r and not both?

[/code]

#!/bin/bash
# set -xv
######################################################
# Setting up variables for script #
######################################################

while getopts "b:r:h" OPTION; do
case "$OPTION" in
b)
while getopts "f:e:" OPTION2; do
case "$OPTION2" in
f)
echo "FULL_LOGGING=true"
;;
e)
echo "ERRORLOGGING AS NORMAL"
;;
esac
done;;
r)
case "${OPTARG}" in

name)
echo "restore_filename"
;;
latest)
echo "restore_latest"
;;
listall)
echo "listall"
;;
project)
echo "project_timestamp"
;;
lastcontents)
echo "last_contents"
;;
directory)
echo "RESTORE_FILES_DIRECTORY="
;;
compare)
echo "Compare"
;;
esac;;

h)
echo " help_action"
;;
?)
echo "HELLP HELP"
;;
*)
echo "NO ENRTY"
;;

esac
done
[code]
 
  


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