how to save keystroke output in AppleScript variable? - bash

Question

I have written an AppleScript that starts my shell by typing in the commands in the terminal. But I want to test the shell and so I want to save the command result in a variable. This is my code:
#!/bin/bash
osascript <<EOF
tell application "System Events"
keystroke "cd /Users/uwe/documents/coding/c/pshell"
delay 0.5
keystroke return
delay 0.5
keystroke "make compile_and_run"
delay 1
keystroke return
delay 0.5
keystroke "bash /Users/uwe/documents/coding/c/pshell/tests/user_test.sh"
delay 0.5
keystroke return
key code 126
delay 0.5
set arrow_result to keystroke return // this is where I want to save the output
display dialog arrow_result // it says there is no variable called 'arrow_result'
end tell
EOF
If its possible I could also store the result in a bash variable but I don't think that that works

Answer 1

You can of course send keystroke commands and then get the text content of the terminal window (and then parse it) with the following command:
set arrow_result to value of text field 1 of scroll area 1 of splitter group 1 of window 1 of process "Terminal"
But why be so perverted. There is no need to use Terminal, System Events and GUI scripting to complete your task. Instead, use the most powerful tool in the AppleScript language, the do shell script command:
#!/bin/bash
osascript <<EOF
set arrow_result to(do shell script "cd /Users/uwe/documents/coding/c/pshell
make compile_and_run
bash /Users/uwe/documents/coding/c/pshell/tests/user_test.sh")
display dialog arrow_result
EOF
NOTE: I tested my suggestion in the Terminal with following code:
osascript <<EOF
set arrow_result to do shell script "echo \"Hello, World!\""
display dialog arrow_result
EOF