I am running following script to monitor some processes and store the output in html file. But on running, it gives the error top: failed tty get.
Here is the script:
var=4
while [ $var -ge 0 ]
do
`echo q | htop --p=2164 | aha --black --line-fix >> htop2.html`
#$cmd
sleep 1
var=$(($var-1))
done
Please guide me to solve this error!
It seems to me, that you don't have htop installed.
What's the output of which htop and alias? Most likely the command htop points to top on your system. Contrary to htop, top cannot be used in non-interactive environments/scripts.
Try to install the 'real' htop.
top, not htop, but wouldn't top have complained about the --p option? Also notice the strange command substitution in the code. I don't think we're seeing the code that generated that exact error.