08-11-2013
I think I made almost everything.. but I need a small help
I want to exit a loop without using exit. I mean I dont want the program to end. Just end of loop is some condition is reached.
Please note below code has a lot more logic than mention in my query above.
#!/bin/sh
file="drop/test1"
blk_val=99999
while read j
do
prev=$j
prev1=$j
blk_flag=0
loop_count=0
blk_size=0
while read j
do
if [ ${j} -gt ${prev} ]; then
next=$j
blk_size=`expr $next - $prev + $blk_size + 1 `
if [ ${blk_size} -ge ${blk_val} ]; then
if [ ${blk_flag} -eq 1 ]; then
if [ ${loop_count} -eq 0 ]; then
header=$prev1
trailer=$next
prev=`expr $next + 1`
echo h0=$header
echo t0=$trailer
blk_size=0
blk_flag=0
loop_count=1
prev1=`expr $trailer + 1`
else
prev1=`expr $trailer + 1`
trailer=$next
prev=`expr $next + 1`
header=$prev1
echo h1=$header
echo t1=$trailer
blk_size=0
blk_flag=0
fi
else
header=$prev
trailer=$next
prev=`expr $next + 1`
blk_size=0
echo h2=$header
echo t2=$trailer
fi
else
prev=`expr $next + 1`
blk_flag=1
fi
fi
done < $file
echo h3=$header
echo t3=$trailer
done < $file
Last edited by Scott; 08-11-2013 at 07:26 PM..
Reason: Returning user, previously banned. Thread closed.
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LEARN ABOUT LINUX
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 The word begin is followed by a mode (in octal), and a string
which names the remote file. A space 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)