{
# On lines that meet condition -> if 'last' has a value and second field value of input is not equal to 'last'
if (last && $2 != last) {
# print variables 'last' and 'sum', set 'sum' to zero
print last, sum; sum=0
}
# On each line
# define variable 'sum' with the current value of 'sum' incremented by the value third field of input
# define variable 'last' as the value of second field.
sum=sum+ $3; last = $2
}
END {
# print final values of 'last' and 'sum', after entire file is processed.
print last, sum
}
what is the syntax for clearing the screen in c ?
when i tried "Clrscr()" the CC complier does not reconise it.
please do tell me more about this.
thanking you
imma (6 Replies)
Hello All,
I like this forum btw, and have only been lurking for about a day.
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Hi,
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How can i change this? (4 Replies)
Hello. I should have asked this awhile ago but here is my situation. My task is to generate LOC for different directories. I have a text file that has dates in this format (01-Aug-2006). My task is to read each line and compare it to a branch date. Depending on the date, it should generate a... (0 Replies)
I have a log file on our system which fills up with lines that have been timestamped, as follows....
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03/03/2008 10:56:07:003]... (2 Replies)
Hello,
I have a script which creates a certain text file.
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So I thought to remove the file every time I call the script, and that way I am sure that the previous content will not interrupt me.... (2 Replies)
Hi All,
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FILE1
FirstQueue
SecondQueue
ThirdQueue
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Can anyone help me for this..
Thanks in... (0 Replies)
Hi Everyone,
How to check the status of the particular port and also clear it if it is locked without reboot?
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Thank you. (6 Replies)
Discussion started by: laxmikant
6 Replies
LEARN ABOUT OPENSOLARIS
sum
sum(1) User Commands sum(1)NAME
sum - print checksum and block count for a file
SYNOPSIS
sum [-r] [file]...
DESCRIPTION
The sum utility calculates and prints a 16-bit checksum for the named file and the number of 512-byte blocks in the file. It is typically
used to look for bad spots, or to validate a file communicated over some transmission line.
OPTIONS
The following options are supported:
-r Use an alternate (machine-dependent) algorithm in computing the checksum.
OPERANDS
The following operands are supported:
file A path name of a file. If no files are named, the standard input is used.
USAGE
See largefile(5) for the description of the behavior of sum when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of sum: LC_CTYPE, LC_MESSAGES, and
NLSPATH.
EXIT STATUS
The following exit values are returned.
0 Successful completion.
>0 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------------------------------------+
| ATTRIBUTE TYPE ATTRIBUTE VALUE |
|Availability SUNWesu |
|CSI Enabled |
+-----------------------------------------------------------+
SEE ALSO cksum(1), sum(1B), wc(1), attributes(5), environ(5), largefile(5)DIAGNOSTICS
Read error is indistinguishable from end of file on most devices. Check the block count.
NOTES
Portable applications should use cksum(1).
sum and usr/ucb/sum (see sum(1B)) return different checksums.
SunOS 5.11 7 Nov 1995 sum(1)
10-18-2018
