I'm a newbi to Unix and the last few weeks I have been trying to learn Unix through a book called Unix in 24 hours. I have tried advanced shell programming (that's what the chapter is called) today and what the excersise was all about was to create mylocate - a version of locate that is a shell script. The first step was to write a script that would build a database of every file and directory that is accessible to my login. Once that script was done and changed to executeable I tried it out as he (the author) had suggested and I got outputs similar to the ones in his book. So that step worked. Next was to create a script that used grep to allow easy file searching. (I try to understand as much as I can but not everything is always explained, so I'm still stumbling around in the dark quite a bit...). The second script was called mylocate. Once that was executable I again did some testruns he suggested and they worked (e.g. ./mylocate "\.c$" | wc -l).
The problem started once I did the next step - to make it part of my overall environment...
So like he suggested, I went back to $HOME with cd (my $HOME is /home/ubuntu), created a new bin (mkdir bin) and moved both scripts I had written somewhere else (in my file that is in home/ubuntu/data/user) into the new bin (with mv). When I move to bin and check with ls, both scripts are there (mkmylocatedb and mylocate). Both are still executable. Next step would be to modify PATH so that at the end I only need to type in command names from my new bin (he wanted to link it to .profile). He said to write:
Once I did that, nothing worked - and any other scripts I wrote afterwards and are linked to bin are not working either. I tried every combination I could and nothing, only command not found. I went to .profile and opened it with the vi editor - deleted the export blablabla out and saved the changes. Now at least ./mylocate works again but nothing else and only when I have moved to bin - anywhere else I get the same error message as before.
.profile says first something about its execution, when and when not it's read, where the default is set (in /etc/profile unmask 022), some info about if running bash (my shell is bash) and then the last if statement is:
Code:
# set PATH so it includes user's private bin if it exists
if [ -d "$HOME/bin" ] ; then
PATH="$HOME/bin:$PATH"
fi
So my private bin exists, the command I was supposed to write was $HOME/bin - and as $HOME is /home/ubuntu it should work, shouldn't it? What do I have to type (and more importantly why) to actually link the new bin to .profile (or would I have to link it to /etc/profile???) so I could actually execute it like I can ls or cat or cp or any other command? (wherever I am..)
Sorry for this lengthy thread. I hope I haven't left out any important information - if I did, please let me know.
In my /etc/profile, my $PATH variable is set as follows:
$PATH =/sbin:/usr/sbin:/usr/bin:/etc
Then how do I add an additional directory to it? say
/export/home/abd/rose
Please advise.
Thanks!
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Dear,
Please help me to configure application clustering in linux ubuntu. Application is running apache server.
Please help
Jewel
---------- Post updated at 01:07 PM ---------- Previous update was at 12:48 PM ----------
linuxvirtualserver dot org
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Discussion started by: Jewel100
2 Replies
LEARN ABOUT HPUX
what-patch
WHAT-PATCH(1) General Commands Manual WHAT-PATCH(1)NAME
what-patch - detect which patch system a Debian package uses
SYNOPSIS
what-patch [options]
DESCRIPTION
what-patch examines the debian/rules file to determine which patch system the Debian package is using.
what-patch should be run from the root directory of the Debian source package.
OPTIONS
Listed below are the command line options for what-patch:
-h, --help
Display a help message and exit.
-v Enable verbose mode. This will include the listing of any files modified outside or the debian/ directory and report any additional
details about the patch system if available.
AUTHORS
what-patch was written by Kees Cook <kees@ubuntu.com>, Siegfried-A. Gevatter <rainct@ubuntu.com>, and Daniel Hahler <ubuntu@thequod.de>,
among others. This manual page was written by Jonathan Patrick Davies <jpds@ubuntu.com>.
Both are released under the GNU General Public License, version 3 or later.
SEE ALSO
The Ubuntu MOTU team has some documentation about patch systems at the Ubuntu wiki: https://wiki.ubuntu.com/PackagingGuide/PatchSystems
cdbs-edit-patch(1), dbs-edit-patch(1), dpatch-edit-patch(1)DEBIAN Debian Utilities WHAT-PATCH(1)