11-12-2013
Blank lines are a sequence of two (or more) line feed chars. If you remove all of those, that info is lost.
Did you consider awk with its multi-line record feature?
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1. Shell Programming and Scripting
I try to test the carriage return in a variable.
$ LENGTH=`expr $VARIABLE : ".*"` will return the length of the variable. But this doesn't work if $VARIABLE has zero length.
Any help will be well appreciated.
Thanks in advance.
Giovanni (4 Replies)
Discussion started by: gio123bg
4 Replies
2. Shell Programming and Scripting
I have observed with print & echo, they produce carriage return <CR> or newline, after they display string next to them.
Is there anyway to avoide these <CR> after the intended string is displayed? (3 Replies)
Discussion started by: videsh77
3 Replies
3. Shell Programming and Scripting
hi there
I'm getting a string from a sqlplus query, and I need to compare it with another string
Problem here, is that the string i get from query brings a 'carriage return' with it, and comparing throws always false value.
i need to delete all carriage retun charactres in string.
how... (6 Replies)
Discussion started by: viko
6 Replies
4. Shell Programming and Scripting
Hy everybody
I'm trying to write a function like
function(){
final=$1
return $final
}
but I get following error:
"return: bad non-numeric arg ''"
what shall I do? Isn't it possible to return strings?:confused:
thanks
lucae (2 Replies)
Discussion started by: lucae
2 Replies
5. UNIX for Dummies Questions & Answers
Hello, I want remove ^M at end of my files line
if I use command : tr -d '\r' <inp>out it work fine
but get I the same result by manipulating the string ?
I want this because in my text file I manipulate some other part
I have input "the cat^M"
I want output "the cat"
I have made... (3 Replies)
Discussion started by: aquila_1
3 Replies
6. Shell Programming and Scripting
Hey folks,
I've been working on this for some time. Seems simple, but I'm stumped.
I need the following data format:
New_York:Commercial
Geology
Geophysics
Petrophysics
Production_Engineering
Reservoir_Engineering
Pasadena:Commercial
... (5 Replies)
Discussion started by: leepet01
5 Replies
7. Shell Programming and Scripting
Hi All,
I want to remove carriage return in a file using some unix command without writing a script
my file is as follows
abc1 abc2 abc3 abc4
abc5 bac6
abc1 abc2 abc3 abc4
abc5 bac6
I want the output as follows:
abc1 abc2 abc3 abc4 abc5 bac6
abc1 abc2 abc3 abc4 abc5 bac6
,
Please... (7 Replies)
Discussion started by: manish8484
7 Replies
8. Shell Programming and Scripting
Hello,
How do i usecarriage return in ksh.
I want to do an echo "bla bla" and another echo "bla bla" will appear and replace the first echo on screen.
I tried:
until ; do
echo "bla bla \r"
done
please advice.
Thanks. (3 Replies)
Discussion started by: LiorAmitai
3 Replies
9. Shell Programming and Scripting
Hello all,
I've a flat file in the following format:
AB\001\CDED\001\ABC\001\nEG\001\HIJF\001\EFG\001\nHI\003\HIUL\003\HIJ\003
And I want to substitute \n with the carriage return. Any help is appreciated!
Regards,
- Seth (8 Replies)
Discussion started by: sethmj
8 Replies
10. UNIX for Dummies Questions & Answers
I need to remove the carriage return comes inbetween the record.
Need to have CR only at the end.
I used the below command.
tr -d '\n' < filewithcarriagereturns > filewithoutcarriagereturns
But its removing all the CR and giving one line output.
Input File:
12345
abcdegh... (11 Replies)
Discussion started by: srvn_saru
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LEARN ABOUT DEBIAN
plan9-join
JOIN(1) General Commands Manual JOIN(1)
NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If one of the file names is the
standard input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/src/cmd/join.c
SEE ALSO
sort(1), comm(1), awk(1)
BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)