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Perl

perl -e 'exec "/bin/sh";'

1	perl -e 'exec "/bin/sh";'

Simple Shells to Fully Interactive TTYs

1. Python to spawn a PTY

$ python -c 'import pty; pty.spawn("/bin/bash")' or $ python3 -c 'import pty; pty.spawn("/bin/bash")'

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$ python -c 'import pty; pty.spawn("/bin/bash")'         or $ python3 -c 'import pty; pty.spawn("/bin/bash")'

2. Put the shell in to background with Ctrl-Z

$ Ctrl-Z

1

$ Ctrl-Z

3. Examine the current terminal and STTY info and match it

# echo $TERM # stty -a

1 2	# echo $TERM # stty -a

The information needed is the TERM type (“xterm-256color”) and the size of the current TTY (“rows 37; columns 146”)

4. Set the current STTY to type raw and tell it to echo the input characters

# stty raw -echo

1	# stty raw -echo

5. Foreground the shell with fg and re-open the shell with reset

# fg reset

1 2	# fg    reset

6. stty size to match our current window

$ export SHELL=bash $ export TERM=xterm256-color $ stty rows 37 columns 146 $ bash -i

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$ export SHELL=bash $ export TERM=xterm256-color $ stty rows 37 columns 146 $ bash -i

7. Set PATH TERM and SHELL if missing

$ export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin $ export TERM=xterm $ export SHELL=bash $ cat /etc/profile; cat /etc/bashrc; cat ~/.bash_profile; cat ~/.bashrc; cat ~/.bash_logout; env; set $ export PS1='[\u@\h \W]\$ '

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$ export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin $ export TERM=xterm $ export SHELL=bash $ cat /etc/profile; cat /etc/bashrc; cat ~/.bash_profile; cat ~/.bashrc; cat ~/.bash_logout; env; set $ export PS1='[\u@\h \W]\$ '

1	python -c 'import pty; pty.spawn("/bin/sh")'   https://archive.is/xDb8o