Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options

comment on

( #3333=superdoc: print w/replies, xml ) Need Help??

For bash:

#!/usr/bin/perl $hist = `bash -ic 'set -o history; history'`; print $hist;

(don't ask why set -o history and -i (i.e. interactive) are required... in theory, either option on its own should enable the history)

But note that although this prints a history, it might not be the history you're looking for (the one of the current shell instance that you run this Perl script from(?)). Rather, it's just the contents of the shell's history file (typically ~/.bash_history), which the new shell instance reads upon startup. This file holds whatever history log was last written to it (normally, when some interactive shell exits).  In other words, unless you execute history -w from within the current shell instance prior to running the script, you won't get the current status of its history buffer, which is being held in memory only, otherwise...

In reply to Re: command line history? by almut
in thread command line history? by brp4h

Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":

  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?

    What's my password?
    Create A New User
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others exploiting the Monastery: (5)
    As of 2020-07-16 17:45 GMT
    Find Nodes?
      Voting Booth?

      No recent polls found