How write history in a file with a shell script

Question

i do a long manipulation, so i want to take my history and put in a file "text.txt" then i rm the history, but it doesn't work i dont know why.

#!/bin/bash


while true
do
     history -r
     history >> root/history.txt
     echo "history.txt rempli" &
     echo "test automatise" >> history.txt
     rm history
    sleep 10
done

it only write "test automatise", history is orange but bash tells me than he can't rm history because he doesn't know it.

I do./test.sh & when i want to start the scrpt.

Thanks !!

Answer 1

rm history will try to delete history file or directory, it probably does not exist and will throw an error, instead clear your history with history -c

history does not work because it is not ran in the current shell script, you can make it work with source :

#!/bin/bash


while true
do
     history -r
     history >> root/history.txt
     echo "history.txt rempli" &
     echo "test automatise" >> history.txt
     history -c
    sleep 10
done

and then run

$ source test.sh &

learn more about source: https://superuser.com/questions/46139/what-does-source-do

learn more about why history does not work without source: https://unix.stackexchange.com/questions/5684/history-command-inside-bash-script