can't figure out a way to delete multiple empty lines but keep single empty lines in a file, file is like this
#cat file
1
2
3
4
5
6
-
What I want is
1
2 (6 Replies)
test data:
Code:
sed -n '/^**$*/,/;/{/;/G;p;}'
What i'm trying to do with the above regex (in bleu)
identify upper/lower case select only when
select is at the beginning of the line OR preceded by a space
select is followed by a space or is at the end of the line.
... (13 Replies)
Hi
I would like to delete ranges of text from an html file;
In the sentence; aqua>Stroomprobleem in Hengelo verholpen <a href="107-01.html"><font color=yellow>107</a>
With several sentences like this in that file, where the text between <a href a> varies, so it needs to be deleted in the... (2 Replies)
Hi,
I would like to delete lines in /etc/hosts on few workstations, basically I want to delete all the lines for a list of machines like this :
for HOST in $(cat stations.lst |uniq)
do
# echo -n "$HOST"
if ping -c 1 $HOST > /dev/null 2>&1
then
HOSTNAME_val=`rsh $HOST "sed... (3 Replies)
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)
Sample file:
This is line one,
this is another line,
this is the PRIMARY INDEX line
l ;
This is another line
The command should find the line with “PRIMARY INDEX” and remove the last character from the line preceding it (in this case , comma) and remove the first character from the line... (5 Replies)
Hi
I need to delete lines from a file which are after pattern1 and between pattern 2 and patter3, as below:
aaaaaaaa
bbbbbbbb
pattern1
cdededed
ddededed
pattern2
fefefefe <-----Delete this line
efefefef <-----Delete this line
pattern3
adsffdsd
huaserew
Please can you suggest... (6 Replies)
Hi,
I am using the following code to fetch lines that are generated in last 1 hr . Hence, I am using date function to calculate -last 1 hr & the current hr and then somehow use awk (or sed-if someone could guide me better)
with some regex pattern.
dt_1=`date +%h" "%d", "%Y\ %l -d "1 hour... (10 Replies)
Hi All,
I have a file which contains lakhs of records
0136812368126 03000 Statement
1237129372189 02321 JIT
0136812368126 05000 terminal
1237129372189 05001 Utilise
Is there an option to delete all lines which fall within the range 05000 to 05999?
I tried... (6 Replies)
Hi Members,
This is my first post in this forum.
I want to do is match form feed lines one by one in a file and delete the next n lines (ex-3 lines) with the form feed character
Eg - Files looks like
Data 1
Data 2
Data 3
FF
Hdr1
Hdr2
Hdr3
Data4
Data5
FF
Hdr1
Hdr2
Hdr3 (9 Replies)
Discussion started by: yohan
9 Replies
LEARN ABOUT DEBIAN
plan9-split
SPLIT(1) General Commands Manual SPLIT(1)NAME
split - split a file into pieces
SYNOPSIS
split [ option ... ] [ file ]
DESCRIPTION
Split reads file (standard input by default) and writes it in pieces of 1000 lines per output file. The names of the output files are xaa,
xab, and so on to xzz. The options are
-n n Split into n-line pieces.
-l n Synonym for -n n, a nod to Unix's syntax.
-e expression
File divisions occur at each line that matches a regular expression; see regexp(7). Multiple -e options may appear. If a subex-
pression of expression is contained in parentheses (...), the output file name is the portion of the line which matches the subex-
pression.
-f stem
Use stem instead of x in output file names.
-s suffix
Append suffix to names identified under -e.
-x Exclude the matched input line from the output file.
-i Ignore case in option -e; force output file names (excluding the suffix) to lower case.
SOURCE
/src/cmd/split.c
SEE ALSO sed(1), awk(1), grep(1), regexp(7)SPLIT(1)