• try just typing "help"

    i get:

    help
    GNU bash, version 3.2.48(1)-release (x86_64-apple-darwin11)
    These shell commands are defined internally. Type help' to see this list. Typehelp name' to find out more about the function name'. Useinfo bash' to find out more about the shell in general.
    Use man -k' orinfo' to find out more about commands not in this list.

    A star (*) next to a name means that the command is disabled.

    JOB_SPEC &
    . filename [arguments] :
    [ arg... ] [[ expression ]]
    alias [-p] [name[=value] ... ] bg [job_spec ...]
    bind [-lpvsPVS] [-m keymap] [-f fi break [n]
    builtin [shell-builtin [arg ...]] caller [EXPR]
    case WORD in [PATTERN [| PATTERN]. cd [-L|-P] [dir]
    command [-pVv] command [arg ...] compgen [-abcdefgjksuv] [-o option
    complete [-abcdefgjksuv] [-pr] [-o continue [n]
    declare [-afFirtx] [-p] [name[=val dirs [-clpv] [+N] [-N]
    disown [-h] [-ar] [jobspec ...] echo [-neE] [arg ...]
    enable [-pnds] [-a] [-f filename] eval [arg ...]
    exec [-cl] [-a name] file [redirec exit [n]
    export [-nf] [name[=value] ...] or false
    fc [-e ename] [-nlr] [first] [last fg [job_spec]
    for NAME [in WORDS ... ;] do COMMA for (( exp1; exp2; exp3 )); do COM
    function NAME { COMMANDS ; } or NA getopts optstring name [arg]
    hash [-lr] [-p pathname] [-dt] [na help [-s] [pattern ...]
    history [-c] [-d offset] [n] or hi if COMMANDS; then COMMANDS; [ elif
    jobs [-lnprs] [jobspec ...] or job kill [-s sigspec | -n signum | -si
    let arg [arg ...] local name[=value] ...
    logout popd [+N | -N] [-n]
    printf [-v var] format [arguments] pushd [dir | +N | -N] [-n]
    pwd [-LP] read [-ers] [-u fd] [-t timeout] [
    readonly [-af] [name[=value] ...] return [n]
    select NAME [in WORDS ... ;] do CO set [--abefhkmnptuvxBCHP] [-o opti
    shift [n] shopt [-pqsu] [-o long-option] opt
    source filename [arguments] suspend [-f]
    test [expr] time [-p] PIPELINE
    times trap [-lp] [arg signal_spec ...]
    true type [-afptP] name [name ...]
    typeset [-afFirtx] [-p] name[=valu ulimit [-SHacdfilmnpqstuvx] [limit
    umask [-p] [-S] [mode] unalias [-a] name [name ...]
    unset [-f] [-v] [name ...] until COMMANDS; do COMMANDS; done
    variables - Some variable names an wait [n]
    while COMMANDS; do COMMANDS; done { COMMANDS ; }

    i tried typing

    popd [+N | -N] [-n]
    to logout but all that got me was
    -bash: popd: directory stack empty
    -bash: -N]: command not found

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