If you don't like python, there's "apt-file", which is in perl

On Sun, Oct 12, 2014 at 11:04 PM, Michael Havens <bmike1@gmail.com> wrote:
your trying to get me to see the python script? is this the right way to do it? I did it with 'man' before but  now that I think of it running 'man /usr/lib/command-not-found' is essentially running 'less /usr/lib/command-not-found' except 'man/usr/lib/command-not-found' has the hilighted line ' Manual page command-not-found line 1 (press h for help or q to quit)'

$ more  /usr/lib/command-not-found 
#!/usr/bin/python3
# (c) Zygmunt Krynicki 2005, 2006, 2007, 2008
# Licensed under GPL, see COPYING for the whole text

from __future__ import absolute_import, print_function


__version__ = "0.3"

try:
    import sys
    if sys.path and sys.path[0] == '/usr/lib':
        # Avoid ImportError noise due to odd installation location.
        sys.path.pop(0)
    if sys.version < '3':
        # We might end up being executed with Python 2 due to an old
        # /etc/bash.bashrc.
        import os
        if "COMMAND_NOT_FOUND_FORCE_PYTHON2" not in os.environ:
            os.execvp("python3", [sys.argv[0]] + sys.argv)

    import gettext
    import locale
    from optparse import OptionParser

    from CommandNotFound.util import crash_guard
    from CommandNotFound import CommandNotFound
except KeyboardInterrupt:
    import sys
    sys.exit(127)


def enable_i18n():
    cnf = gettext.translation("command-not-found", fallback=True)
    kwargs = {}
    if sys.version < '3':
        kwargs["unicode"] = True
    cnf.install(**kwargs)
    try:
        locale.setlocale(locale.LC_ALL, '')
    except locale.Error:
        locale.setlocale(locale.LC_ALL, 'C')


def fix_sys_argv(encoding=None):
    """
    Fix sys.argv to have only unicode strings, not binary strings.
    This is required by various places where such argument might be
    automatically coerced to unicode string for formatting
    """
    if encoding is None:
        encoding = locale.getpreferredencoding()
    sys.argv = [arg.decode(encoding) for arg in sys.argv]


class LocaleOptionParser(OptionParser):
    """
    OptionParser is broken as its implementation of _get_encoding() uses
    sys.getdefaultencoding() which is ascii, what it should be using is
    locale.getpreferredencoding() which returns value based on LC_CTYPE (most
    likely) and allows for UTF-8 encoding to be used.
    """
    def _get_encoding(self, file):
        encoding = getattr(file, "encoding", None)
        if not encoding:
            encoding = locale.getpreferredencoding()
        return encoding


def main():
    enable_i18n()
    if sys.version < '3':
        fix_sys_argv()
    parser = LocaleOptionParser(
        version=__version__,
        usage=_("%prog [options] <command-name>"))
    parser.add_option('-d', '--data-dir', action='store',
                      default="/usr/share/command-not-found",
                      help=_("use this path to locate data fields"))
    parser.add_option('--ignore-installed', '--ignore-installed',
                      action='store_true',  default=False,
                      help=_("ignore local binaries and display the available packages"))
    parser.add_option('--no-failure-msg',
                      action='store_true', default=False,
                      help=_("don't print '<command-name>: command not found'"))
    (options, args) = parser.parse_args()
    if len(args) == 1:
        cnf = CommandNotFound(options.data_dir)
        if not cnf.advise(args[0], options.ignore_installed) and not options.no_failure_msg:
            print(_("%s: command not found") % args[0], file=sys.stderr)

if __name__ == "__main__":
    crash_guard(main, BUG_REPORT_URL, __version__)


:-)~MIKE~(-:

On Sun, Oct 12, 2014 at 7:07 PM, James Mcphee <jmcphe@gmail.com> wrote:
Sorry, it's not in bin.  if [ -x /usr/lib/command-not-found -o -x /usr/share/command-not-found/command-not-found ]; then

is the line in .bash.bashrc.

On Sun, Oct 12, 2014 at 10:47 AM, Michael Havens <bmike1@gmail.com> wrote:
well... in the interim I got my memory chips so I shut down my computer to put them in and found I got the wrong ones! they're two small. so I restart the computer, get your message, and:

bmike1@C521 ~ $ which command-not-found
bmike1@C521 ~ $  command-not-found
command-not-found: command not found
bmike1@C521 ~ $ 


:-)~MIKE~(-:

On Sun, Oct 12, 2014 at 9:47 AM, James Mcphee <jmcphe@gmail.com> wrote:
Honestly, no :)  Check your /etc/bash.bashrc.  The default has a little conditional if the command you typed isn't found it runs that little python script to look for possible packages that might contain what you were trying to run.  It's annoying an I tend to disable it so when I typo a command it doesn't slow me down doing the search.  Find it with "which command-not-found" and you can read the python code, which doesn't really say much, but is interesting none-the-less.

On Sun, Oct 12, 2014 at 9:40 AM, Michael Havens <bmike1@gmail.com> wrote:
no it isn't  but as I was looking into this I tried running the man page and get:
'No manual entry for command-not-found' 
but when I try to apt-get it:
'command-not-found is already the newest version.' 
Then I tried running it with the help option:
'command-not-found: command not found'
 Are you just messing with me, James?

:-)~MIKE~(-:

On Sun, Oct 12, 2014 at 5:50 AM, James Mcphee <jmcphe@gmail.com> wrote:
there's a command called "command-not-found", is that what you were thinking of to find the file in question?

On Sun, Oct 12, 2014 at 1:38 AM, Michael Havens <bmike1@gmail.com> wrote:
Long ago I needed a file that was included in an apt package. If I remember right there is a way to find out what package that file is a part of and to extract it. Am I right? If so, how is it done?
:-)~MIKE~(-:

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