bash alias and history in code block

bash alias and history in code block

[OSiUX]

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How to use alias and bash builtin functions?

 #+BEGIN_SRC sh :session :results output
   echo $SHELL
   echo $HOME
   source ~/.bashrc
   alias | wc
   env | grep HISTTIMEFORMAT
   history | wc
 #+END_SRC

 #+RESULTS:
 : /bin/bash
 : /home/osiris
 :       0       0       0
 : HISTTIMEFORMAT=%Y-%m-%d %H:%M
 :       0       0       0

Thanks!

--

::

  Osiris Alejandro Gomez (OSiUX) osiux@osiux.com.ar
  DC44 95D2 0D5D D544 FC1A F00F B308 A671 9237 D36C
  http://www.osiux.com.ar http://www.altermundi.net

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Re: bash alias and history in code block

[Eric Schulte]

OSiUX <xuiso@osiux.com.ar> writes:

> How to use alias and bash builtin functions?
>
>  #+BEGIN_SRC sh :session :results output
>    echo $SHELL
>    echo $HOME
>    source ~/.bashrc
>    alias | wc
>    env | grep HISTTIMEFORMAT
>    history | wc
>  #+END_SRC
>
>  #+RESULTS:
>  : /bin/bash
>  : /home/osiris
>  :       0       0       0
>  : HISTTIMEFORMAT=%Y-%m-%d %H:%M
>  :       0       0       0
>
> Thanks!
>

I get the following.  Note that I define my alia in a separate file
which I had to load explicitly for the alia to be defined (it should be
sourced from my ~/.bashrc, but shells can be weird about loading things
they think might be profile related when you're not logging in).

#+BEGIN_SRC sh :session :results output
  echo $SHELL
  echo $HOME
  source ~/.bashrc
  alias | wc
  env | wc
  history | wc
#+END_SRC

#+RESULTS:
: /bin/zsh
: /home/eschulte
:       0       0       0
:      28      28     715
:       0       0       0

#+BEGIN_SRC sh :session :results output
  echo $SHELL
  echo $HOME
  source ~/.alia
  source ~/.bashrc
  alias | wc
  env | wc
  history | wc
#+END_SRC

#+RESULTS:
: /bin/zsh
: /home/eschulte
:      19      99     814
:      28      28     715
:       0       0       0

My guess with the empty history is that bash can tell it isn't an
interactive session, which you might be able to fake with tty pipe STDIN
and STDOUT nonsense in ob-sh.  But in general I don't see the utility of
history in a code block.

Best,

-- 
Eric Schulte
https://cs.unm.edu/~eschulte
PGP: 0x614CA05D

Re: bash alias and history in code block

[Sebastien Vauban]

OSiUX wrote:
> How to use alias and bash builtin functions?
>
>  #+BEGIN_SRC sh :session :results output
>    echo $SHELL
>    echo $HOME
>    source ~/.bashrc
>    alias | wc
>    env | grep HISTTIMEFORMAT
>    history | wc
>  #+END_SRC
>
>  #+RESULTS:
>  : /bin/bash
>  : /home/osiris
>  :       0       0       0
>  : HISTTIMEFORMAT=%Y-%m-%d %H:%M
>  :       0       0       0

Just throwing an idea (as I don't know enough about that): play with the
variable `org-babel-sh-command' (default: "bash") and add options such as
"--login" or "--interactive" (or stuff like that)?

Best regards,
  Seb

-- 
Sebastien Vauban

Re: bash alias and history in code block

[OSiUX]

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El vie, 06 dic 2013, Sebastien Vauban decía:

> OSiUX wrote:
> > How to use alias and bash builtin functions?
> >
> >  #+BEGIN_SRC sh :session :results output
> >    echo $SHELL
> >    echo $HOME
> >    source ~/.bashrc
> >    alias | wc
> >    env | grep HISTTIMEFORMAT
> >    history | wc
> >  #+END_SRC
> >
> >  #+RESULTS:
> >  : /bin/bash
> >  : /home/osiris
> >  :       0       0       0
> >  : HISTTIMEFORMAT=%Y-%m-%d %H:%M
> >  :       0       0       0
>
> Just throwing an idea (as I don't know enough about that): play with the
> variable `org-babel-sh-command' (default: "bash") and add options such as
> "--login" or "--interactive" (or stuff like that)?

Ok, add a "bash -i" and now is working well:

   #+BEGIN_SRC sh :session :results output
     grep bash ~/.emacs
     echo $SHELL
     echo $HOME
     alias | wc
     env | grep HISTTIMEFORMAT
     echo $BASH_VERSION
     shopt -s histappend
     set -o | grep history
     history | wc
     alias dia
     alias hh
     hh | tail
     history -a
   #+END_SRC

   #+RESULTS:
   #+begin_example
   (setq org-babel-sh-command "bash -i")
   /bin/bash
   /home/osiris
       534    3236   29894
   HISTTIMEFORMAT=%Y-%m-%d %H:%M
   4.2.37(1)-release
   history          on
      8275   44194  338107
   alias dia='date +%Y-%m-%d'
   alias hh='history | egrep $(dia)  | cut -c 19- | sort -u'
   17:10 set -o | grep history
   17:10 shopt -s histappend
   17:10 ssh sugar-mant
   17:10 sudo chown osiris.osiris config -R
   17:10 sudo chown osiris.osiris .* -R
   17:10 sudo chown osiris.osiris /var/run/screen/S-osiris
   17:10 sudo chown osiris.osiris /var/run/screen/S-osiris.*
   17:10 sudo -s
  #+end_example

Sometimes I forget to start clock in a task,
then I use the history to know the timestamp
:-P

--

::

  Osiris Alejandro Gomez (OSiUX) osiux@osiux.com.ar
  DC44 95D2 0D5D D544 FC1A F00F B308 A671 9237 D36C
  http://www.osiux.com.ar http://www.altermundi.net

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