I have a bash script and I run the script using exec.Command,
But the bash script required a TTY mode, my question how in Go could I run this bash script in TTY mode?
Is it possible?
Related
When I try execute a shell script from within a shell script it works when executing in terminal manually. However, when executing it via a #reboot cron via sudo crontab -e on Raspberry Pi OS it runs everything apart from sh /home/pi/script.sh within the shell script.
My shell script:
#!/bin/sh
clear
sleep 5
python /home/pi/Desktop/Relay-Script-On.py
sleep 3
sh /home/pi/script.sh
sleep 5
python /home/pi/Desktop/Relay-Script-Off.py
sleep 3
I have made the other shell file executable using sudo chmod +x
Note I am still new to shell (apologies if there is an obvious error here).
I have a erlang script (Ex. test), I can run it from command line using ./test but I want to run the script from crontab of the Linux server. As I am new in using erlang script, can someone guide me how to run it from crontab?
want to run the script everyday once at 12.30AM.
I am using ttyecho (can be installed with yay -S ttyecho-git) to execute a command in a separate terminal like so:
urxvt &
sudo ttyecho -n /proc/<pid-of-new-urxvt>/fd/0 <command>
It does not work because the /proc/pid-of-new-urxvt/fd/0 is a symlink that points to the /dev/pts/x of the parent terminal.
In the spawned urxvt I happen to run zsh. So if I use the pid of that zsh process it works:
sudo ttyecho -n /proc/<pid-of-new-zsh-within-new-urxvt>/fd/0 <command>
How can I get the pid of the new zsh process spawned within the new urxvt process when I run urxvt & ? Or is there a different solution to achieve the same result?
pgrep -P <pid-of-new-urxvt> gives the pid of the child zsh process.
Thx to #user1934428 for the brainstorming
Here is the resulting bash script:
urxvt &
term_pid=$!
# sleep here makes us wait until the child shell in the terminal is started
sleep 0.1
# we retrieve the pid of the shell launched in the new terminal
shell_pid=$(pgrep -P $term_pid)
# ttyecho executes the command in the shell of the new terminal and gives back control of the terminal so you can run further commands manually
sudo ttyecho -n /proc/${shell_pid}/fd/0 "$#"
So when I launch "script ls" it opens a new terminal, runs ls, and gives back the prompt with the terminal still open.
I just had to add ttyecho in the sudoers file.
I am running the cmd
script install-log.txt
the terminal successfully returns
Script started, file is install-log.txt
If I begin typing commands and receiving output to the screen
lsblk
fdisk -l
ls
echo ok
when I check the install-log.txt
nano install-log.txt
it is empty.
I thought all cmd was supposed to be saved there until the session is finished?
I am using Arch-Linux installation CD, and wanted to save this log to record my installation setup cmds.
You need to terminate script operation by running 'exit' command. That wont exit your terminal as such. Then you can view your log file.
Here is the duplicate with more detailed info -> Bash script: Using "script" command from a bash script for logging a session
I am trying to run a shell command in the Linux rc startup script. But the command execution is not successful. I cannot creats a shell script file for this command. Please help on how to execute a shell command in rc file. The command I am giving is as below,
sh -c "echo 0 > /proc/sys/net/ipv4/icmp_echo_ignore_broadcasts"
Thanks for your help
Phani