I am new to shell scripting and I ran into a couple lines of code which I don't completely understand:
I believe data_dir to be a more conventional link to a directory. However, I am not sure what PATH is. It also seems like a location but maybe it's multiple possible locations? Does the : signify that the location could be either: /usr/bin, /bin, /usr/sbin or /usr/local/entity/bin? Is the : in this context similar to some function like [ is to the test function?
I am trying to create an alias for a frequently used directory path by using
alias xyz="/proj/dir_name"
and then trying to reach a sub-directoy by using
cd xyz/abc
but I get an error saying " No such file or directory "
plz tell me wats wrong with this ... (3 Replies)
I cannot seem to get the following script to work. I cannot seem to set the variable. What am I missing?
bin/bash
set -x
echo "2" > /tmp/number
STATUS='grep -c 2 /temp/number'
if ; then
echo "Number 2 is found once"
else
echo "Number 2 is found more or less than one time"
fi (3 Replies)
Hi,
I am having a variable
Like
line="/dir1/dir2/gr3/file.ksh"
I need to get the /dir1/dir2/gr3 alone. the no of directories may differ at each time.
Please advice. thanks in advance. (3 Replies)
Hello,
i have another sed question.. I'm trying to do variable substition with sed and i'm running into a problem.
my var1 is a string constructed like this:
filename1 filerev1 filepath1
my var2 is another string constructed like this:
filename2 filerev2 filepath2
when i do... (2 Replies)
Hi
I need a script which will remove a path from PATH environment variable. For example
$echo PATH
/usr/local/bin:/usr/bin:test/rmve:/usr/games
$echo rmv
test/rmve
Here I need a shell script which will remove rmv path (test/rmve) from PATH... (9 Replies)
Hi,
Could anyone help me in writing a single line code by either using (sed, awk, perl or whatever) to extract a specific path from the PATH environment variable?
for eg: suppose the PATH is being set as follows
PATH=/usr/bin/:/usr/local/bin:/bin:/usr/sbin:/usr/bin/java:/usr/bin/perl3.4
... (2 Replies)
Hello Folks,
I want to append a path in user's PATH variable which should be available in current session.
Background
Numerous persons will run a utility.
Aim is to add the absolute path of the utility the first time it runs so that next runs have the PATH in env & users can directly run... (6 Replies)
Hi I'm trying to select text between two lines, I'm using sed to to this, but I need to pass variables to it. For example
start="BEGIN /home/mavkoup/data"
end="END"
sed -n -e '/${start}/,/${end}/g' doesn't work. I've tried double quotes as well. I think there's a problem with the / in the... (4 Replies)
I am submitting a concurrent program (of HOST tyme) from Oracle apps screen,
The MAIN shell program submits another program, (child) which is also a Shell program. The child writes data to log file. Now the main program, read the log and do some calculations and sends the data to user through... (1 Reply)
Need a way to read a file in who every line is a path to a directory and make shortcut to that directory on a specific place.
Example:
line in the document
/media/gogo/6651-FEAB/Desktop/
/media/gogo/6651-FEAB/Desktop/alex/
/media/gogo/6651-FEAB/linux/ ... (3 Replies)
Discussion started by: gogok_bg
3 Replies
LEARN ABOUT DEBIAN
consolehelper
CONSOLEHELPER(8) System Manager's Manual CONSOLEHELPER(8)NAME
consolehelper - A wrapper that helps console users run system programs
SYNOPSIS
progname [ options ]
DESCRIPTION
consolehelper is a tool that makes it easy for console users to run system programs, doing authentication via PAM (which can be set up to
trust all console users or to ask for a password at the system administrator's discretion). When possible, the authentication is done
graphically; otherwise, it is done within the text console from which consolehelper was started.
It is intended to be completely transparent. This means that the user will never run the consolehelper program directly. Instead, pro-
grams like /sbin/shutdown are paired with a link from /usr/bin/shutdown to /usr/bin/consolehelper. Then when non-root users (specifically,
users without /sbin in their path, or /sbin after /usr/bin) call the "shutdown" program, consolehelper will be invoked to authenticate the
action and then invoke /sbin/shutdown. (consolehelper itself has no priviledges; it calls the userhelper(8) program do the real work.)
consolehelper requires that a PAM configuration for every managed program exist. So to make /sbin/foo or /usr/sbin/foo managed, you need
to create a link from /usr/bin/foo to /usr/bin/consolehelper and create the file /etc/pam.d/foo, normally using the pam_console(8) PAM mod-
ule.
OPTIONS
This program has no command line options of its own; it passes all command line options on to the program it is calling.
SEE ALSO userhelper(8)AUTHOR
Michael K. Johnson <johnsonm@redhat.com>
Red Hat Software 18 March 1999 CONSOLEHELPER(8)