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Reading command line options from bash script

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# 15  
Old 03-20-2012
Quote:
Originally Posted by Corona688
There was a minor error in my code. You want

set -- $* not set -- "$*" because the quotes will prevent it from splitting.

When I replace that, your code does this:

Code:
$ ./arg.sh --cmodif=myfile.cmod --srcsif sources.srcs

$* = --cmodif myfile.cmod --srcsif sources.srcs
Current Argument is --cmodif
Argument is --cmodif
Current Argument is --srcsif
Current Argument is sources.srcs
arg_cmdInFile = myfile.cmod

$

Things are working now.

---------- Post updated at 04:23 PM ---------- Previous update was at 04:20 PM ----------

I have created a new thread concerning use of bash case statement.

Having problems when I code the following:

Code:
  "--"[sS][rR][cC][sS][iI][fF]|"--"[sS][rR][cC][sS]"-"[iI][nN][fF][iI][lL][eE])
  "--"[sS][oO][uU][rR][cC][eE][sS]"-"[iI][nN][fF][iI][lL][eE])
    shift     # Skip ahead one to the next argument.
    arg_srcsInFile="${1}"
    opt_srcsInFile=1
  ;;

I want to check for

Code:
  "--"[sS][rR][cC][sS][iI][fF]
  "--"[sS][rR][cC][sS]"-"[iI][nN][fF][iI][lL][eE])
  "--"[sS][oO][uU][rR][cC][eE][sS]"-"[iI][nN][fF][iI][lL][eE])

but are too long to fit in one line.

---------- Post updated at 04:42 PM ---------- Previous update was at 04:23 PM ----------

I got an infringement when I posted this on another tread. Thought this post is getting too long and too many requirements. Apologies.
# 16  
Old 03-20-2012
You can't put more than one case that way. Put them in one line separated by |, or just make them separate cases.

Code:
case "$STUFF" in
case1|case2)
        ;;

case3)
        ;;
esac

This User Gave Thanks to Corona688 For This Post:
kristinu
# 17  
Old 03-20-2012
Is there a neater way to allow upper or lower case checks rather than having to do the following:

Code:
"--"[sS][rR][cC][sS][iI][fF]  \
|"--"[sS][rR][cC][sS]"-"[iI][nN][fF][iI][lL][eE]  \
|"--"[sS][oO][uU][rR][cC][eE][sS]"-"[iI][nN][fF][iI][lL][eE])

# 18  
Old 03-20-2012
That's actually a pretty good idea. Seems to work.

Code:
case "$1" in
        --qwerty|\
        --uiop)
                echo "asdf"
                ;;
esac

# 19  
Old 03-20-2012
Quote:
Originally Posted by Corona688
That's actually a pretty good idea. Seems to work.

Code:
case "$1" in
        --qwerty|\
        --uiop)
                echo "asdf"
                ;;
esac

Which good idea? Using [bB][rR] ... ?
# 20  
Old 03-20-2012
The backslash to cross lines.
# 21  
Old 03-20-2012
Quote:
Originally Posted by Corona688
The backslash to cross lines.
Yes, works really well. Smilie

What about the [][] thing for matching lower and upper case letters?

Code:
while [ "$#" -gt 0 ]
do

  arg=`echo "$1" | tr '[:lower:]' '[:upper:]'`

  case "$arg" in

  "--RAYTRAC-PATH")
    shift     # Skip ahead one to the next argument.
    arg_raytracPath="${1}"
    opt_raytracPath=1
  ;;

  "--CMODIF"|\
  "--CMOD-INFILE")
    shift     # Skip ahead one to the next argument.
    arg_cmodInFile="${1}"
    opt_cmodInFile=1
  ;;

...

or

Code:
while [ "$#" -gt 0 ]
do

  case "$1" in

  "--"[rR][aA][yY][tT][rR][aA][cC]"-"[pP][aA][tT][hH])
    shift     # Skip ahead one to the next argument.
    arg_raytracPath="${1}"
    opt_raytracPath=1
  ;;

  "--"[cC][mM][oO][dD][iI][fF]|\
  "--"[cC][mM][oO][dD]"-"[iI][nN][fF][iI][lL][eE]")
    shift     # Skip ahead one to the next argument.
    arg_cmodInFile="${1}"
    opt_cmodInFile=1
  ;;

...
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