Thank you so much. But does that also create a new file and write all the "good" data into it without overwriting?
The scripts shown just write the extracted data to standard output. The original data (datfile1 and datfile2) are not modified. If you want to save the output in files, try something like:
And then look at the contents of the files datfile1.mod and datfile2.mod after it finishes. You could also pipe the output into another stream of processes to do whatever you want with the data without creating temporary files, replace the data in the original files, or millions of other choices depending on what you want to do. If you tell us what you are trying to do, we might be able to suggest saving the output in a manner that would be appropriate for your situation.
This User Gave Thanks to Don Cragun For This Post:
Hey friends,
Here I am with another query. I have a TXT file.
Foe an example
EX ID : B-Mezine
....
...
...
Some lines of text (Not fixed in length n no of lines)..
...
...
..
END EX ID
Some blank lines in between two records(Not fixed in numbers)
EX ID : B-Mezine
....
...... (20 Replies)
Hii friends,
I am a newbie to unix/shell scripting and got stuck in implementing a functionality.Dear experts,kindly spare some time to bring me out of dark pit :confused:..
My requirement is somewhat wierd,let me explain what i have and what i need to do...
1) there are several excel... (1 Reply)
hiii, Help me out..i have a huge set of data stored in a file.This file has has 2 columns which is latitude & longitude of a region. Now i have a program which asks for the number of points & based on this number it asks the user to enter that latitude & longitude values which are in the same... (7 Replies)
Hello, i'm new to the forum and so am i to C programming.
Recently i've gotten a task to create a program that will read an existing .bin file and copy the data to a non existing (so i have to create it) .txt file (some type of conversion)
Now, i now how to put the arguments, opening and... (5 Replies)
I have a series of observations of which one column is sometimes missing (zero):
date temp delta
1977 284.54 29.84
1978 149.82 0
1979 320.71 28.45
1980 176.76 0
1981 854.65 0
1984 817.65 0
1985 990.58 27.98
1986 410.21 0
1987 405.93 0
1988 482.9 0
What I would like to achieve is a... (8 Replies)
I have the following that I'd like to do:
1. I have split a file into separate files that I placed into the /tmp directory. These files are named F1 F2 F3 F4.
2. In addition, I have several directories which are alphabetized as dira dirb dirc dird.
3. I'd like to be able to copy F1 F2 F3 F4... (2 Replies)
Hello people,
I have a question regarding transferring data from one file server to another.
The server is a Solaris 9 box
The old file server is connected via Ethernet cable, and the new file server we are switching is a Fiber channel.
can I use the
dd if=server:/app1 of=server2:/app1
... (2 Replies)
Hi
I think this should be relatively simple but I can't figure it out. I have several files with the same name in different folders within a directory (the output of a program that I ran). Something like this:
./myAnalysis/item1/round1/myoutput.txt
./myAnalysis/item1/round2/myoutput.txt... (2 Replies)
I need to fix an SQL statement in MySQL that should calculate a field using values from two of the columns and I prefer to do this using set-based programming, ie not procedural. What needs to happen is that in a separate column called "delta" the value of "level" is copied depending on whether... (3 Replies)
Hello,
I have a log file that has several sections "BEGIN JOB, End of job" like in the following example:
19/06/12 - 16:00:57 (27787398-449294): BEGIN JOB j1(27787398-449294) JOB1
19/06/12 - 16:00:57 (27787398-449294): DIGIT: 0
number of present logs : 1
19/06/12 - 16:00:57... (4 Replies)
Discussion started by: mvalonso
4 Replies
LEARN ABOUT DEBIAN
mod-active
MOD-ACTIVE(8) InterNetNews Documentation MOD-ACTIVE(8)NAME
mod-active - Batch processing of newsgroups creation and removal commands
SYNOPSIS
mod-active [ctlinnd-command-file ...]
DESCRIPTION
mod-active is a Perl script that updates the active file based on its input lines of ctlinnd "newgroup", "rmgroup" and "changegroup"
commands. It pauses the server briefly while the existing active file is read and rewritten, which not only keeps innd from updating the
active file but also locks against other instances of mod-active.
The script must be run as the news user.
The input to mod-active can come either from one or more ctlinnd-command-file files named on the command line, or from the standard input.
Typically its input is the output from the docheckgroups or actsync commands. Every line which contains the string "ctlinnd newgroup",
"ctlinnd rmgroup", or "ctlinnd changegroup", optionally preceded by whitespace and/or the path to ctlinnd, is noted for the update.
Redundant commands, such as a newgroup directive for a group that already exists, are silently ignored. All other lines in the input are
also silently ignored. After the new active file has been generated, the existing one is renamed to active.old and the new one is moved
into place. The script then displays the differences between the two files. Any groups that were added to the active file are also added
to the active.times file with the string "checkgroups-update".
Please note that no syntax checking is performed on group names by mod-active.
BUGS
Though innd is paused while mod-active works, it is not inconceivable that there could be a conflict if something else tries to update the
active file during the relatively short time that mod-active is working. The two most realistic ways for this to happen are either by an
administrator concurrently doing a manual ctlinnd command, or by innd receiving a control message, then mod-active pausing the server, then
the control message handler script that innd forked running its own ctlinnd command while mod-active is working. Note that such scenarios
are very unlikely to happen.
HISTORY
Written by David C Lawrence <tale@isc.org> for InterNetNews. Converted to POD by Julien Elie.
SEE ALSO active(5), active.times(5), actsync(8), ctlinnd(8), docheckgroups(8), innd(8).
INN 2.5.3 2011-06-10 MOD-ACTIVE(8)