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KSH Script -- loop and data copy question

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# 1  
Old 05-10-2011
KSH Script -- loop and data copy question
I am trying to write a script that will allow me to train others with commands that I run manually by only allowing the exact command before continuing onto the next set of commands. Here is where I come into an issue. I have changed the directories for this post.

Software we run creates files stored in /export/home/test. I need to copy them from this directory to /export/home/copy_from_test. There are more than one file with the same few letters being the same. (i.e. CF_test; CF_test1; CF_test2) I would like all of the files to be copied with 1 command
Code:
cp -p /export/home/test/CF* /export/home/copy_from_test/

The problem I am having is if the trainee doesn't include the * in the command then it only copies the first file and continues through the rest of the script. I need it to error and loop back to the part where the command is to be entered.

The script is currently setup like so
Code:
echo
while [ "forever" ]
do
echo "Type the first 3 letters of the files to be copied here: \c"
read COPYFILE
if [[ $COPYFILE = "/export/home/test/$COPYFILE* ] && [ "${COPYFILE}" ! = "" ]];
then
     break
fi
done
echo
     while [ "forever" ]
     do
     echo "Enter Command"
     read CMDLINE
     if [[ $CMDLINE = "cp -p /export/home/test/$COPYFILE* /export/home/copy_from_test/" ]];
     then
            break
     fi
     done
            if [[ $CMDLINE = "cp -p /export/home/test/$COPYFILE* /export/home/copy_from_test/" ]];
           then
                  $CMDLINE
           fi
           done
echo
echo "command complete."

Any help is appreciated. Thanks agian.

Hurtz
# 2  
Old 05-10-2011
Something like this?
Code:
 while ! [[ $CMD =~ '*' ]] ; do 
   echo "Input command: "
   read CMD; 
done

Your code has some flaws, some of them worse than others. There are some syntax errors too. This cannot work:
Code:
if [[ $COPYFILE = "/export/home/test/$COPYFILE* ] && [ "${COPYFILE}" ! = "" ]];

Keep in mind, that when you define a variable with '*', you have to enclose it in single quotes to prevent shell globbing.
Code:
sh$ ls
file1
file2
file3
sh$ var="fi*"
sh$ echo $var
file1 file2 file3
sh$ var='fi*'
sh$ echo $var
fi*

This User Gave Thanks to mirni For This Post:
hurtzdonut
# 3  
Old 05-10-2011
Applying lateral thought it is probably not necessary for the script user to enter the trailing asterisk. We can hard code it into the script. Also by using "find" to generate a list of files we can process each file one-by-one and eliminate most of the potential issues with wildcards in shell scripts.

Code:
echo
while true
do
        echo "Press Return to exit"
        echo "Type the first 3 letters of the files to be copied here: \c"
        read PREFIX
        if [ "${PREFIX}""X" = "X" ]
        then
                break
        fi
        find /export/home/test -type f -name "${PREFIX}*" -print | \
        while read FILENAME
        do
                echo "Copying: ${FILENAME}"
                cp -p "${FILENAME}" /export/home/copy_from_test
        done
        echo
done
echo
echo "command complete."

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