[..]I try to change [:alnum:] with [:a-z:] because the script may not joing lines ended with numbers but this doens't work.
Than I change with [ a-zA-Z ] but here the script do nothing.
[..]
In this case that should have been a-zA-Z or [:alpha:]. The latter is preferable since it also works for other letters beside the standard letters...
---------- Post updated at 09:01 ---------- Previous update was at 08:29 ----------
Quote:
Originally Posted by thailand
Thanks very much Scrutinizer and rangarasan.
These 2 solutions works the way I need it.
How you make these codes I don't understand it, maybe I'm to old for to learn this but I'm trying.
[..]
Hi thailand, here is a clarifcation:
1
The 1 means: perform the default action which is {print $0}, i.e. print the line or record. Since ORS (the output record selector) is set to nothing, it will not print a newline at the end.
length<=m && /[[:alpha:][:space:],]$/ && getline p
if the length of the line is less than m AND it ends with a letter, a space character or a comma AND reading a next line into variable p is successful (in other words we are not at the last line of the file), then
print (length(p)<=n?FS:RS) p}
if the length of variable p (which contains the extra line) is less than or equal to n, then print a space ( so p it is on the same line as the previous line ). If not then print a newline character ( so p is on a separate line) . next print variable p without a newline (because ORS is set to nothing).
print RS
print a newline character
m=20 n=15 ORS= infile
set m to 20 and n to 15. set ORS to nothing, before we start reading the infile
Last edited by Scrutinizer; 03-17-2012 at 05:11 PM..
This User Gave Thanks to Scrutinizer For This Post:
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