# Upgrade Shell ## Shell Spawning #### Python ``` python -c 'import pty;pty.spawn("/bin/bash")' ``` #### Echo ``` echo os.system('/bin/bash') ``` #### /bin/sh ``` /bin/sh -i ``` #### Perl ``` perl —e 'exec "/bin/sh";' perl: exec "/bin/sh"; ``` #### Ruby ``` ruby: exec "/bin/sh" ``` #### Lua ``` lua: os.execute('/bin/sh') ``` #### Exec from within IRB ``` exec "/bin/sh" ``` #### From within vi ``` :!bash :set shell=/bin/bash:shell ``` #### From within Nmap ``` !sh ``` {% embed url="" %}