-l        Make bash act as if it had been invoked as a login shell (see I       -r        If the -r option is present, the shell becomes restricted (see        -s        If the -s option is present, or if no arguments remain after op                 the positional parameters to be set when invoking an interactiv       -v        Print shell input lines as they are read.                             -x        Print commands and their arguments as they are executed.              -D        A  list  of all double-quoted strings preceded by $ is printed                  when the current locale is not C or POSIX.  This implies the -n       [-+]O [shopt_option]                                                                      shopt_option is one of the shell options accepted by the shopt                  value  of  that option; +O unsets it.  If shopt_option is not s                 standard output.  If the invocation option is +O, the output is       --        A -- signals the end of options and disables further option pro                 ment of - is equivalent to --.                                  Manual page bash(1) line 1 (press h for help or q to quit)                     

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                [ Delete ]  [ Resize ]  [  Quit ]  [  Sort  ]  [  Write ]  [  Dump  ]                                        Qui changes                                                                        

-r--r--r--   1 root root 0 Nov 28 20:01 timers                                  -rw-rw-rw-   1 root root 0 Nov 28 20:01 timerslack_ns                           -rw-r--r--   1 root root 0 Nov 28 20:01 uid_map                                 -r--r--r--   1 root root 0 Nov 28 20:01 wchan                                   admin@i-03c3097309a075b56:/proc/576$ cd map_files/                              bash: cd: map_files/: Permission denied                                         admin@i-03c3097309a075b56:/proc/576$ ls -l^C                                    admin@i-03c3097309a075b56:/proc/576$ less smaps                                 smaps: Permission denied                                                        admin@i-03c3097309a075b56:/proc/576$ cat smaps                                  cat: smaps: Permission denied                                                   admin@i-03c3097309a075b56:/proc/576$ stra^C                                     admin@i-03c3097309a075b56:/proc/576$ strace -p 576                              strace: attach: ptrace(PTRACE_SEIZE, 576): Operation not permitted              admin@i-03c3097309a075b56:/proc/576$                                            

{                                                                                   local quoted=${1//\'/\'\\\'\'};                                                 printf "'%s'" "$quoted"                                                     }                                                                               quote_readline ()                                                               {                                                                                   local ret;                                                                      _quote_readline_by_ref "$1" ret;                                                printf %s "$ret"                                                            }                                                                               admin@i-0a1a1c7bba3b01dbe:~$ set | les                                          bash: les: command not found                                                    admin@i-0a1a1c7bba3b01dbe:~$ set | less                                         admin@i-0a1a1c7bba3b01dbe:~$ which txt                                          admin@i-0a1a1c7bba3b01dbe:~$ which txt