06-26-2011
How to check if an application has been installed on a unix/linux box?
hi, guys,
now I face a problem. I have developed an application, and when it starts, it shall check if an application has been installed on the running linux/unix. If result is positive, i do something with the application command.
just as an example: I want to check if sshd has been installed. this requirement is supposed to be distribution independent. So
on my Arch box, usually "sshd" can be found at /etc/rc.d/sshd
however on a debian/ubuntu box, it usually is located at /etc/init.d/sshd
is there a general way, say give me the "/etc/rc.d" or "/etc/init.d" directory on the system?
thanx
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LEARN ABOUT LINUX
apport-bug
apport-bug(1) General Commands Manual apport-bug(1)
NAME
apport-bug, apport-collect - file a bug report using Apport, or update an existing report
SYNOPSIS
apport-bug
apport-bug symptom | pid | package | program path | .apport/.crash file
apport-collect report-number
DESCRIPTION
apport-bug reports problems to your distribution's bug tracking system, using Apport to collect a lot of local information about your sys-
tem to help the developers to fix the problem and avoid unnecessary question/answer turnarounds.
You should always start with running apport-bug without arguments, which will present a list of known symptoms. This will generate the most
useful bug reports.
If there is no matching symptom, you need to determine the affected program or package yourself. You can provide a package name or program
name to apport-bug, e. g.:
apport-bug firefox
apport-bug /usr/bin/unzip
In order to add more information to the bug report that could help the developers to fix the problem, you can also specify a process ID
instead:
$ pidof gnome-terminal
5139
$ apport-bug 5139
As a special case, to report a bug against the Linux kernel, you do not need to use the full package name (such as linux-
image-2.6.28-4-generic); you can just use
apport-bug linux
to report a bug against the currently running kernel.
Finally, you can use this program to report a previously stored crash or bug report:
apport-bug /var/crash/_bin_bash.1000.crash
apport-bug /tmp/apport.firefox.332G9t.apport
Bug reports can be written to a file by using the --save option or by using apport-cli.
apport-bug detects whether KDE or Gnome is running and calls apport-gtk or apport-kde accordingly. If neither is available, or the session
does not run under X11, it calls apport-cli for a command-line client.
UPDATING EXISTING REPORTS
apport-collect collects the same information as apport-bug, but adds it to an already reported problem you have submitted. This is useful
if the report was not originally filed through Apport, and the developers ask you to attach information from your system.
OPTIONS
Please see the apport-cli(1) manpage for possible options.
ENVIRONMENT
APPORT_IGNORE_OBSOLETE_PACKAGES
Apport refuses to create bug reports if the package or any dependency is not current. If this environment variable is set, this
check is waived. Experts who will thoroughly check the situation before filing a bug report can define this in their ~/.bashrc or
temporarily on the command line when calling apport-bug.
SEE ALSO
apport-cli(1)
AUTHOR
apport and the accompanying tools are developed by Martin Pitt <martin.pitt@ubuntu.com>.
Martin Pitt September 08, 2009 apport-bug(1)