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1. UNIX for Dummies Questions & Answers
I know that this basic question has been asked many times and solutions all over the internet, but none of the are working for me. I have a directory in the root directory, named "-p".
# ls -l /
total 198
<snip>
drwxr-xr-x 4 root root 4096 Dec 3 14:18 opt
drwxr-xr-x 2 root ... (2 Replies)
Discussion started by: edstevens
2 Replies
2. Shell Programming and Scripting
How to write in awk to remove lines starting with "#" and then process the file:
This is not working:
cat file|awk '{if ($0 ~ /^#/) $0="";print NF>0}'
When I just give cat file|awk '{if ($0 ~ /^#/) $0="";print }'
it prints the blank lines . I don't wnat the blank lines along with the... (15 Replies)
Discussion started by: rveri
15 Replies
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I'm trying to remove all of the empty lines at the end of a Tab delimited file. They have no data just tabs.
I've tried may things, here are a couple:
sed /^\t.\t/d File1 > File2
sed /^\t{44}/d File1 > File2
What am I missing? (9 Replies)
Discussion started by: SirHenry1
9 Replies
4. UNIX for Dummies Questions & Answers
Hello,
I have a folder that contains all my music. Recently, I started using a different media player, and I let it manage my music folder. It has sorted all my music neatly in folders by artist and album. However, all the old folders that the songs used to be in are still there, yet they are... (2 Replies)
Discussion started by: emveedee
2 Replies
5. Shell Programming and Scripting
To see if a directory is has anything in it, I do this:
if ; then
# do something
fi
But surely there is a more easy-to-read and elegant way. Isn't there? (6 Replies)
Discussion started by: KenJackson
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6. Shell Programming and Scripting
Hi,
I have a file as shown below.
<crown:clinicalData>
<crown:alb date="2008-07-10" lowValue="3.50" method="BCG" value="3.50"/>
<crown:cre date="2008-07-10" value="9.5"></crown:cre>
<crown:ktvHdAd>
</crown:ktvHdAd>
<crown:ktvPdAd>
</crown:ktvPdAd>
... (1 Reply)
Discussion started by: vijayhai
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7. UNIX for Dummies Questions & Answers
Hey there!
I try to use 'find' to remove empty directories like this:
find . -depth -type d -empty -exec rm -rf {} ';'
It works just fine, but there are some directories i want to exclude.
So i tried to do sth like this:
find . -depth -type d -empty -exec grep -v "not this one please" -exec... (5 Replies)
Discussion started by: deTTo
5 Replies
8. UNIX for Dummies Questions & Answers
I used to be able to do the following command on HP while largefile was being written to.
> echo " " > largefile
When I try the same on Solaris I get a message that the file already exists.
Is there a parameter that I need to setup in my env ?
Thanks in advance (8 Replies)
Discussion started by: jxh461
8 Replies
9. Programming
I have a file which contains numbers as follows:
1234 9876 6789 5677 3452
9087 4562 1367 2678 7891
I need to remove the empty spaces and add commas between the numbers like:
1234,9876,6789,5677,3452,
9087,4562,1367,2678,7891
Can anyone tell me the command to do... (4 Replies)
Discussion started by: jazz
4 Replies
dpkg-trigger(1) dpkg suite dpkg-trigger(1)
NAME
dpkg-trigger - a package trigger utility
SYNOPSIS
dpkg-trigger [option...] trigger-name
dpkg-trigger [option...] command
DESCRIPTION
dpkg-trigger is a tool to explicitly activate triggers and check for its support on the running dpkg.
This can be used by maintainer scripts in complex and conditional situations where the file triggers, or the declarative activate triggers
control file directive, are insufficiently rich. It can also be used for testing and by system administrators (but note that the triggers
won't actually be run by dpkg-trigger).
Unrecognised trigger name syntaxes are an error for dpkg-trigger.
COMMANDS
--check-supported
Check if the running dpkg supports triggers (usually called from a postinst). Will exit 0 if a triggers-capable dpkg has run, or 1
with an error message to stderr if not. Normally, however, it is better just to activate the desired trigger with dpkg-trigger.
-h, --help
Show the usage message and exit.
--version
Show the version and exit.
OPTIONS
--admindir=dir
Change the location of the dpkg database. The default location is /var/lib/dpkg.
--by-package=package
Override trigger awaiter (normally set by dpkg through the DPKG_MAINTSCRIPT_PACKAGE environment variable of the maintainer scripts,
naming the package to which the script belongs, and this will be used by default).
--no-await
This option arranges that the calling package T (if any) need not await the processing of this trigger; the interested package(s) I,
will not be added to T's trigger processing awaited list and T's status is unchanged. T may be considered installed even though I
may not yet have processed the trigger.
--no-act
Just test, do not actually change anything.
ENVIRONMENT
DPKG_ADMINDIR
If set and the --admindir option has not been specified, it will be used as the dpkg data directory.
SEE ALSO
dpkg(1), deb-triggers(5), /usr/share/doc/dpkg-dev/triggers.txt.gz.
Debian Project 2009-03-15 dpkg-trigger(1)