Is there an option, for cat, head, tail, or is there any way, to display a file from last line to first? For example, my file
looks like this:
aaaa
bbbb
cccc
eeee
and I would like to print or display it like this:
eeee
cccc
bbbb
aaaa
thanks (5 Replies)
How can I specify special meaning characters like ^ or $ inside a regex range. e.g
Suppose I want to search for a string that either starts with '|' character or begins with start-of-line character.
I tried the following but it does not work:
sed 's/\(\)/<do something here>/g' file1
... (3 Replies)
I am very new to scripting and I know this request is simple but I am having no luck with it.
I have a file a.dat with the following data in it.
aa
bb
cc
dd
I need to run a script that will take each line of a.dat and put dsjc/ubin/ in front of each record, so the output looks like
... (2 Replies)
Well here goes:
I tried to write a batch file that adds a specific fixed text to each line of an already existing text file.
for the adding text infront of each line I tried this:
for /F "delims=" %%j in (list.txt) do echo.STARTTEXT\%%j >> list.txt
for adding text after each line I... (0 Replies)
hi I am trying to use SED to replace the line matching a pattern using the command
sed 'pattern c\
new line
' <file1 >file 2
I got two questions
1. how do I insert a blank space at the beginning of new line?
2. how do I use this command to execute multiple command using the -e... (5 Replies)
How would you do vim copy line and paste at the beginning, middle, and end of another line. I know yy copies the whole line and p pastes the whole line, but on its own separate line. Sometimes I would like to copy a line to the beginning, middle, or end of another line. I would think this would be... (3 Replies)
Hi
I've been trying to search but couldn't quite get the answer I was looking for.
I have a a file that's like this
Time, 9/1/12
0:00, 1033
0:10, 1044
...
23:50, 1050
How do I make it so the file will be like this?
9/1/12, 0:00, 1033
9/1/12, 0:10, 1044
...
9/1/12, 23:50, 1050
I... (4 Replies)
Hi,
I have a specific requirement to add text at the beginning and end of a plain text file. I tried to use "sed" with '1i' and '$a' flags but these required two separate "sed" commands separated with "|".
I am looking for some command/option to join these two in single command parameter.
... (6 Replies)
i am trying to
insert text at the beginning of every even number line
with awk
i can do it with odd number lines
with this command
awk 'NR%2{$0="some text "$0}1' filehow can i edit this command
thanks (5 Replies)
Discussion started by: bob123
5 Replies
LEARN ABOUT CENTOS
string::similarity
Similarity(3) User Contributed Perl Documentation Similarity(3)NAME
String::Similarity - calculate the similarity of two strings
SYNOPSIS
use String::Similarity;
$similarity = similarity $string1, $string2;
$similarity = similarity $string1, $string2, $limit;
DESCRIPTION
$factor = similarity $string1, $string2, [$limit]
The "similarity"-function calculates the similarity index of its two arguments. A value of 0 means that the strings are entirely
different. A value of 1 means that the strings are identical. Everything else lies between 0 and 1 and describes the amount of
similarity between the strings.
It roughly works by looking at the smallest number of edits to change one string into the other.
You can add an optional argument $limit (default 0) that gives the minimum similarity the two strings must satisfy. "similarity" stops
analyzing the string as soon as the result drops below the given limit, in which case the result will be invalid but lower than the
given $limit. You can use this to speed up the common case of searching for the most similar string from a set by specifing the maximum
similarity found so far.
SEE ALSO
The basic algorithm is described in:
"An O(ND) Difference Algorithm and its Variations", Eugene Myers,
Algorithmica Vol. 1 No. 2, 1986, pp. 251-266;
see especially section 4.2, which describes the variation used below.
The basic algorithm was independently discovered as described in:
"Algorithms for Approximate String Matching", E. Ukkonen,
Information and Control Vol. 64, 1985, pp. 100-118.
AUTHOR
Marc Lehmann <schmorp@schmorp.de>
http://home.schmorp.de/
(the underlying fstrcmp function was taken from gnu diffutils and
modified by Peter Miller <pmiller@agso.gov.au> and Marc Lehmann
<schmorp@schmorp.de>).
perl v5.16.3 2008-11-04 Similarity(3)