Bash output as Applescript list problems

This is just driving me nuts. I am trying to read a file in bash, remove duplicates, sort, and then display a "list choice" window via applescript.

My $DATALOG file is formatted like this:

field1 field2

field1 field3

field1 field4

etc...

Applescript=awk '{print $2}' $DATALOG | awk ' !x[$0]++' | sort -u | tr "_" " "| sed 's/^/\"/' | sed 's/$/\"/' | tr "\n" "," | sed 's/.$//'

Now, that line works GREAT. in $Applescript, I get an output like this:

"field 2","field 3", "field 4"

Which is exactly waht I want.

Now, I take that output, and add the backslash before the quotes, and the applescript parts.

Applescript=`echo "tell application \"System Events\" to return (choose from list {$Applescript})"| sed 's/\"/\\\"/g'`

And this gets me exactly what I want:

tell application \"System Events\" to return (choose from list {\"field 2\",\"field 3\",\"field 4\"})

Now, I try the osascript command:

osascript -e $Applescript

And I get an error:

4:4: syntax 开发者_运维问答error: Expected expression but found end of script. (-2741)

So, I add quotes:

osascript -e "$Applescript"

And I get an error:

17:18: syntax error: Expected expression, property or key form, etc. but found unknown token. (-2741)

I can't tell what the hell's going on here, so I decide to COPY an echo of $Airport and try that as a variable.

Airport=tell application \"System Events\" to return (choose from list {\"field 2\",\"field 3\",\"field 4\"})

AND THAT WORKS WITHOUT ANY MODIFICATION.

So....

I need to figure out how to do this without having to set my variables permanently.

Don't try to make it more complicated than needed. Take advantage of the shell's two string quote characters to form one shell word as the value for the osascript -e argument:

Applescript=$(awk '{print $2}' $DATALOG | awk ' !x[$0]++' | sort -u | tr "_" " "| sed 's/^/\"/' | sed 's/$/\"/' | tr "\n" "," | sed 's/.$//')
osascript -e 'tell application "System Events" to return (choose from list {'"$Applescript"'})'

Also, it's a good idea to avoid the use of backticks to do command substitution; the $(command) form is preferred because it is much easier to construct correct commands even when dealing with complex nestings.