This should do what you want using the sample.txt file as attached to your post.
Code:
awk -F'|' '
BEGIN {
# Get the heading line out of the way
getline;
h2=$2;
h3=$3;
# Then prime min/max LOGONDATE/EXT_TS
getline;
min_2=$2;
max_2=$2;
min_3=$3;
max_3=$3;
while (getline) {
# for all other lines apart from heading and first, check if they are min/max
if (min_2>$2) min_2=$2;
if (max_2<$2) max_2=$2;
if (min_3>$3) min_3=$3;
if (max_3<$3) max_3=$3;
}
# at end of input display
printf "%-20s = %-30s\n" ,"min_"h2 ,min_2
printf "%-20s = %-30s\n" ,"max_"h2 ,max_2
printf "%-20s = %-30s\n" ,"min_"h3 ,min_3
printf "%-20s = %-30s\n" ,"max_"h3 ,max_3
}
' sample.txt
Last edited by Franklin52; 06-15-2011 at 09:53 AM..
Reason: Please use code tags, thank you
hello friends...:-)
i need some help
i have a file cantain like this
Star1 ,NetWork,09/02/2008
Star1 ,NetWork,10/02/2008
Star1 ,NetWork,11/02/2008
Star2 ,NetWork,08/03/2008
Star2 ,NetWork,09/04/2008
Star2 ,NetWork,10/05/2008
i need to find out min, max dates
the output look like... (6 Replies)
hi!
i have a file like the attachement.
I'd like to get for each line the min, max and average values. (there is 255 values for each line)
how can i get that ?
i try this, is it right?
BEGIN {FS = ","; OFS = ";";max=0;min=0;moy=0;total=0;freq=890}
$0 !~ /Trace1:/ {
... (1 Reply)
Hi,
In a field, I should receive the date with time stamp in a particular field. But sometimes the vendor sends just the date or the timestamp or correctl the date×tamp. I have to figure out the the data is a date or time stamp or date×tamp.
If it is date then append "<space>00:00:00"... (1 Reply)
Dear all,
I have 2 questions.
I have a file with many rows which has date of the format YYYYMMDD.
1. I need to change the date to that weeks friday date(Ex: 20120716(monday) to 20120720). Satuday/Sunday has to be changed to next week friday date too.
2. After converting the date to... (10 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
The program is supposed to read in text from a given file ( different samples provided in the homework but not... (1 Reply)
Hi,
I have a file which looks like this:
FID IID MISS_PHENO N_MISS N_GENO F_MISS
12AB43131 12AB43131 N 17774 906341 0.01961
65HJ87451 65HJ87451 N 10149 906341 0.0112
43JJ21345 43JJ21345 N 2826 906341 0.003118I would... (11 Replies)
Gents,
I have a big file file like this.
5100010002
5100010004
5100010006
5100010008
5100010010
5100010012
5102010002
5102010004
5102010006
5102010008
5102010010
5102010012
The file is sorted and I would like to find the min and max value, taking in the consideration key1... (3 Replies)
You have a log file as attached in sample input with various operations and time taken by each of them. Write a script to find the min and max time taken for each operation. Sample output is attached.
Sample Input is given as below:
operation1,83621
operation2,72321
operation3,13288... (1 Reply)
Discussion started by: Chandan_Bose
1 Replies
LEARN ABOUT MOJAVE
getline
GETLINE(3) BSD Library Functions Manual GETLINE(3)NAME
getdelim, getline -- get a line from a stream
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdio.h>
ssize_t
getdelim(char ** restrict linep, size_t * restrict linecapp, int delimiter, FILE * restrict stream);
ssize_t
getline(char ** restrict linep, size_t * restrict linecapp, FILE * restrict stream);
DESCRIPTION
The getdelim() function reads a line from stream, delimited by the character delimiter. The getline() function is equivalent to getdelim()
with the newline character as the delimiter. The delimiter character is included as part of the line, unless the end of the file is reached.
The caller may provide a pointer to a malloced buffer for the line in *linep, and the capacity of that buffer in *linecapp. These functions
expand the buffer as needed, as if via realloc(). If linep points to a NULL pointer, a new buffer will be allocated. In either case, *linep
and *linecapp will be updated accordingly.
RETURN VALUES
The getdelim() and getline() functions return the number of characters written, excluding the terminating NUL character. The value -1 is
returned if an error occurs, or if end-of-file is reached.
EXAMPLES
The following code fragment reads lines from a file and writes them to standard output. The fwrite() function is used in case the line con-
tains embedded NUL characters.
char *line = NULL;
size_t linecap = 0;
ssize_t linelen;
while ((linelen = getline(&line, &linecap, fp)) > 0)
fwrite(line, linelen, 1, stdout);
ERRORS
These functions may fail if:
[EINVAL] Either linep or linecapp is NULL.
[EOVERFLOW] No delimiter was found in the first SSIZE_MAX characters.
These functions may also fail due to any of the errors specified for fgets() and malloc().
SEE ALSO fgetln(3), fgets(3), malloc(3)STANDARDS
The getdelim() and getline() functions conform to IEEE Std 1003.1-2008 (``POSIX.1'').
HISTORY
These routines first appeared in FreeBSD 8.0.
BUGS
There are no wide character versions of getdelim() or getline().
BSD November 30, 2010 BSD