How can I modify my awk code to get rid of the divion by zero error message? If I run the script without an input file, it should return error message "Input file missing" but not divison by zero.
Code:
#!/bin/nawk -f
BEGIN {
if (NR == 0)
{print "Input file... (4 Replies)
I need to read the file divide 3 column with 2nd and run a modulus of 10 and check whether the remainder is zero or not if not print the entire line.
cat filename | awk '{ if ($3 / $2 % 10 != 0) print $0}'
Whats wrong with it ? (4 Replies)
I received error "awk: division by zero" while executing the following statement.
SunOS 5.10 Generic_142900-15 sun4us sparc FJSV,GPUZC-M
echo 8 | awk 'END {printf ("%d\n",NR/$1 + 0.5);}' file1.lst
awk: division by zero
Can someone provide solution?
Thanks
Please use code... (11 Replies)
vmstat|awk '{print $3}'|tail -1
returns 6250511, but what I need is 24416, which is 6250511 divided by 256.
Please advise.
Thank you so much (2 Replies)
Hi Friends,
I have an input file like this
cat input
chr1 100 200 1 2
chr1 120 130 na 1
chr1 140 160 1 na
chr1 170 180 na na
chr1 190 220 0 0
chr1 220 230 nd 1
chr2 330 400 1 nd
chr2 410 450 nd nd
chr3 500 700 1 1
I want to calculate the division of 4th and 5th columns. But, if... (3 Replies)
Hi Friends,
I don't understand why "a" is always being printed as zero, when I execute the following command.
awk '{if($6||$8||$10||$12==0)a=b=c=d=0;else (a=$5/$6);(b=$7/$8);(c=$9/$10);(d=$11/$12); {print... (6 Replies)
Hello,
How can I add a logic to awk to tell it to print 0 when encountering a division by zero attempted? Below is the code. Everything in the code works fine except the piece that I want to calculate read/write IO size. I take the kbr / rs and kbw / ws. There are times when the iostat data... (5 Replies)
Discussion started by: tommyd
5 Replies
LEARN ABOUT DEBIAN
gifti_test
GIFTI_TEST(1) User Commands GIFTI_TEST(1)NAME
gifti_test - test reading/writing a GIFTI dataset
SYNOPSIS
gifti_test [...]
OPTIONS -help Show usage help.
-gifti_hist
Show giftilib history.
-gifti_ver
Show giftilib version.
-encoding TYPE
Set the data encoding for any output file.
TYPE = ASCII : ASCII encoding
TYPE = BASE64 : base64 binary
TYPE = BASE64GZIP : base64 compressed binary
-gfile OUTPUT
Write out dataset as gifti image.
-infile INPUT
Specify INPUT as the GIFTI dataset to read.
-no_data
Do not write out data.
-show Show final gifti image.
-slist LEN s0...
Restrict output to list of length LEN.
-verb VERB
Set verbose level.
EXAMPLES
1. read in a GIFTI dataset (verbose, show output?)
gifti_test -infile dset.gii
gifti_test -infile dset.gii -verb 3
gifti_test -infile dset.gii -show
2. copy a GIFTI dataset (check differences?)
gifti_test -infile dset.gii -gfile copy.gii
diff dset.gii copy.gii
3. copy a GIFTI data, but write out only 3 surf indices: 0,4,5
gifti_test -infile time_series.gii -gfile ts3.gii -slist 3 0 4 5
SEE ALSO
Website: http://www.nitrc.org/projects/gifti
AUTHOR
Richard Reynolds - SSCC, DIRP, NIMH, National Institutes of Health
This manual page was written by Michael Hanke <michael.hanke@gmail.com>, for the Debian project (but may be used by others).
gifti_test June 2010 GIFTI_TEST(1)