05-27-2002
delete lines
I have more than 1500 line and 30 files. if I use vi and "dd" I can complete until end of my life.
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1. Shell Programming and Scripting
Hi
I want to delete first five and last five lines in text files without opening the file and also i want to keep the same file name for all the files.
Thanks in advance!!!
Ragav (10 Replies)
Discussion started by: ragavendran31
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2. Shell Programming and Scripting
Hi
I am writing a script which should read a file and search for certain strings 'approved' or 'removed' and retain only those lines that contain the above strings.
Ex: file name 'test'
test:
approved package
waiting for approval package
disapproved package
removed package
approved... (14 Replies)
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3. Shell Programming and Scripting
Input:
a
b
b
c
d
d
I need:
a
c
I know how to get this (the lines that have duplicates) :
b
d
sort file | uniq -d
But i need opossite of this. I have searched the forum and other places as well, but have found solution for everything except this variant of the problem. (3 Replies)
Discussion started by: necroman08
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4. Shell Programming and Scripting
First of all, I know this can be more eassily done with perl or other scripting languages but, that's not the issue. I need this in sed. (or wander if it's possible )
I got a file (trace file to recreate the control file from oracle for the dba boys)
which contains
some lines
another line... (11 Replies)
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5. UNIX for Dummies Questions & Answers
Hiiii
I have a file which contains huge data as
a.dat:
PDE 1990 1 9 18 51 28.90 24.7500 95.2800 118.0 6.1 0.0 BURMA
event name: 010990D
time shift: 7.3000
half duration: 5.0000
latitude: 24.4200
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6. Shell Programming and Scripting
Hello,
I have a group of text files with many lines in each file.
I need to delete all the lines in each and only leave 2 lines in each file. (3 Replies)
Discussion started by: script_op2a
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7. UNIX for Advanced & Expert Users
Hi All,
I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space.
I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
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8. Shell Programming and Scripting
hey guys,
I tried searching but most 'search and replace' questions are related to one liners.
Say I have a file to be replaced that has the following:
$ cat testing.txt
TESTING
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
ENDTESTING
This is the input file: (3 Replies)
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9. Shell Programming and Scripting
Hello,
I'm trying to figure out how to use sed or awk to delete single lines in a file. By single, I mean lines that are not touching any other lines (just one line with white space above and below).
Example:
one
two
three
four
five
six
seven
eight
I want it to look like: (6 Replies)
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Hi all,
I'm looking for a way (sed or awk) to delete multiple lines between blank lines containing two patterns ex:
user: alpha
parameter_1 = 15
parameter_2 = 1
parameter_3 = 0
user: alpha
parameter_1 = 15
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parameter_3 = 0
user: alpha
parameter_1 = 16... (3 Replies)
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LEARN ABOUT DEBIAN
dspam_clean
dspam_clean(1) DSPAM dspam_clean(1)
NAME
dspam_clean - perform periodic maintenance of metadata
SYNOPSIS
dspam_clean [--profile=PROFILE] [-s[signature_life]] [-p[probability_life]] [-u[sl,hcl,shl,ihl]] [user1 user2 ... userN]
DESCRIPTION
dspam_clean is used to perform periodic housecleaning on DSPAM's metadata dictionary by deleting old or useless data.
OPTIONS
--profile=PROFILE
Specify a storage profile from dspam.conf. The storage profile selected will be used for all database connectivity. See dspam.conf
for more information.
-s Performs stale signature purging. If a value is specified, the default value of 14 days will be overridden. Specifying an age of 0
will delete all signatures from the user(s) processed.
-p Deletes all tokens from the target user(s) database whose probability is between 0.35 and 0.65 (fairly neutral, useless data). If a
value is specified, the default life of 30 days will be overridden. It's a good idea to use this flag once with a life of 0 days for
users after a significant amount of corpus training.
-u Deletes all unused tokens from a user's dataset. Four different life values are used:
sl Stale tokens which have not been used for a long period of time
hcl Tokens with a total hit count below 5 (which will be assigned a hapaxial value by DSPAM)
shl Tokens witha single spam hit
ihl Tokens with a single innocent hit
Ages may be overridden by specifying a format string, such as -u30,15,10,10 where each number represents the respective life. Speci-
fying a life of zero will delete all unused tokens in the category.
user1 user2 ... userN
Specify the username(s) to perform the selected maintenance operations on. If no username is specified, all users are processed.
EXIT VALUE
0 Operation was successful.
other Operation resulted in an error.
COPYRIGHT
Copyright (C) 2002-2011 DSPAM Project
All rights reserved.
For more information, see http://dspam.sourceforge.net.
SEE ALSO
dspam(1), dspam_admin(1), dspam_crc(1), dspam_dump(1), dspam_logrotate(1), dspam_merge(1), dspam_stats(1), dspam_train(1)
DSPAM
Apr 17, 2010 dspam_clean(1)