|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
awk subtraction
Post 302272728 by npatwardhan on Wednesday 31st of December 2008 02:42:09 PM
12-31-2008
|
|
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
hi gurus!
i realize that my question shows my stupidness, but i need your help!
i have:
s_date=`date +%m-%d-%Y_%I%p`
variable and i need the same, but minus one hour..
what i made:
s_date=time(`date +%m-%d-%Y_%I%p`) - 3600
but i'm getting:
daily_exports.sh: line 20: syntax error near... (4 Replies)
Discussion started by: MarGur
4 Replies
2. Shell Programming and Scripting
AWK subtraction in multiple columns
Hi there,
Can not get the following:
input: 34523 934
9485 3847
394 3847
3456 9384
awk 'NR==1 {for (i = 1; i <= NF; i++) {n=$i; next}; {n-=$i} END {print n}' input
output: 21188 first column only,... (2 Replies)
Discussion started by: awkward
2 Replies
3. Shell Programming and Scripting
hi,
i set up a script on my server to do a particular task once files from an external system are ftpd in the format compaq_20100110 (YYDDMM). Interestingly, the source of ftp is sending the files in the format e.g 20100109 i.e. previous date and for some reason this fails.kindly see my script... (2 Replies)
Discussion started by: bigtejus
2 Replies
4. Shell Programming and Scripting
Hallo all i am trying to execute this script ...............
But this is throwing the error......
use of uninitialized value in subtraction in at icd_convert.pl line 156
use of uninitialized value in subtraction in at icd_convert.pl line 157
use of uninitialized value in subtraction in at... (1 Reply)
Discussion started by: suvenduperl
1 Replies
5. Shell Programming and Scripting
FileA
F97S 83 530
K569E 531 736
output shud be
F16S
K40E
it is code
sed 's///g' FileA |awk '{print $1-$2+2}'
it will print
16
40
anything can come with this output?? (1 Reply)
Discussion started by: cdfd123
1 Replies
6. Shell Programming and Scripting
Hi friends,
I have a file list1 which has these 2 columns like
616449 0
434453 1
2151083 0
2226536 0
2132382 0
2136814 0
I have to put the result of col1 -col2 into another file list2 linewise.
e.g. It gives the below result if use the below code:
awk '{ print $1 - $2 }' list1 >... (2 Replies)
Discussion started by: kunwar
2 Replies
7. Shell Programming and Scripting
Hi
#!/bin/sh
month=`date +%m`
year=`date +%Y`
echo $month
a=02
# Retaining Data for Current and Previous Month
lmonth=`expr $month - $a`
if test "$lmonth" = "0"
then
lmonth=12
year=`expr $year - 1`
fi
echo $year
echo $lmonth
The output is (3 Replies)
Discussion started by: Abhayman
3 Replies
8. Shell Programming and Scripting
Hello all .
I have two arrays.
${ARRAY_MOUNT_POINT_CAPACITY}
${ARRAY_MOUNT_POINT_CAPACITY}.
Whats the synatx of subtracting their values , placing them in variable V1 and then echoeing it ???
Ive tried expr and let ...gives me ./test_code.sh: difference: bad number (3 Replies)
Discussion started by: Junaid Subhani
3 Replies
9. Shell Programming and Scripting
I have dates as follows in a file
20121029135649
20121029135721
20121030091540
20121030093420
20121030094340
20121030095427
20121030095856
20121030100104
20121030100251
All these dates are in sorted order. I need to find out the difference between the dates as follows
2nd row... (6 Replies)
Discussion started by: meetsriharsha
6 Replies
10. UNIX for Dummies Questions & Answers
Hello All,
I am a newbie to unix shell scripting and need to write a script that displays the difference between two variables that stores date value.
For example,
F1=`ls -ltr file1* | tail -1 |tr -s ' ' |cut -d' ' -f6,7,8`
F2=`ls -ltr file2* | tail -1 |tr -s ' ' |cut -d' ' -f6,7,8`
F1... (3 Replies)
Discussion started by: priyaa2010
3 Replies
LEARN ABOUT ULTRIX
pnmdepth
pnmdepth(1) General Commands Manual pnmdepth(1) NAME
pnmdepth - change the maxval in a portable anymap SYNOPSIS
pnmdepth newmaxval [pnmfile] DESCRIPTION
Reads a portable anymap as input. Scales all the pixel values, and writes out the image with the new maxval. Scaling the colors down to a smaller maxval will result in some loss of information. Be careful of off-by-one errors when choosing the new maxval. For instance, if you want the color values to be five bits wide, use a max- val of 31, not 32. One important use of pnmdepth is to convert a new format 2-byte-per-sample PNM file to the older 1-byte-per-sample format. Before April 2000, essentially all raw (binary) format PNM files had a maxval less than 256 and one byte per sample, and many programs may rely on that. If you specify a newmaxval less than 256, the resulting file should be readable by any program that worked with PNM files before April 2000. SEE ALSO
pnm(5), ppmquant(1), ppmdither(1) AUTHOR
Copyright (C) 1989, 1991 by Jef Poskanzer. 08 April 2000 pnmdepth(1)