02-15-2006
I really dont see sort, uniq in here
Here is what I did for 1c and 1d
====
$AFIRST=(head -1 A)
$BTHREE=(cat B | sed -n 3p)
if [[ $AFIRST = $BTHREE ]];
then
print "they match"
else
print "they don't match"
fi
ALAST=$(tail -1 A)
BFOUR=$(cat B | sed -n 4p)
if [[ $ALAST = $BFOUR ]]
then
print "they match"
else
print "they don't match"
fi
=======
I got this part for 1a and 1b
ALINES=$(cat A | wc -l)
BFIRST=$(head -1 B)
how do you compare ALINE=9 and BFRIST=records'9' ; how to have only 9 = 9
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LEARN ABOUT CENTOS
uuencode
UUENCODE(5) File Formats Manual UUENCODE(5)
NAME
uuencode - format of an encoded uuencode file
DESCRIPTION
Files output by uuencode(1) consist of a header line, followed by a number of body lines, and a trailer line. The uudecode(1) command will
ignore any lines preceding the header or following the trailer. Lines preceding a header must not, of course, look like a header.
The header line is distinguished by having the first 6 characters begin This is followed by a mode (in octal), and a string which names
the remote file. A space character separates the three items in the header line.
The body consists of a number of lines, each at most 62 characters long (including the trailing newline). These consist of a character
count, followed by encoded characters, followed by a newline. The character count is a single printing character, and represents an inte-
ger, the number of bytes the rest of the line represents. Such integers are always in the range from 0 to 63 and can be determined by sub-
tracting the character space (octal 40) from the character.
Groups of 3 bytes are stored in 4 characters, 6 bits per character. All are offset by a space to make the characters printing. The last
line may be shorter than the normal 45 bytes. If the size is not a multiple of 3, this fact can be determined by the value of the count on
the last line. Extra garbage will be included to make the character count a multiple of 4. The body is terminated by a line with a count
of zero. This line consists of one ASCII space.
The trailer line consists of end on a line by itself.
SEE ALSO
uuencode(1), uudecode(1), uusend(1), uucp(1), mail(1)
HISTORY
The uuencode file format appeared in BSD 4.0 .
UUENCODE(5)