---------- Post updated at 03:30 PM ---------- Previous update was at 03:11 PM ----------
hi again, i'm thinking of just working on my location.dat file. if supposed i just want loop inside the lines of the .dat file and print lon, lat values using awk for specific month, is this possible and whats the appropriate code for this? thanks much. i think this would be much simple for me.
#!/bin/bash
for file in $HOME/*;
do
if ; then
rm -i $file > /dev/null
echo "$?"
echo "$file has been deleted"
fi
done
Been trying to learn shell scripting for a week or so now, when i run the script it doesnt display an error message, seems like it runs fine, however it doesnt delete... (10 Replies)
Hi below is my script
for((i=0;i<=$TOTAL;i++))
do
echo "IP's created are $s1.$s2.$s3.$s4"
s4=`expr $s4 + 1`
done
where s1,2,3,4 are input varibles
below error occurs while running the script
syntax error at lin 11: '(' unexpected
... (12 Replies)
Guys - I am new to Unix scripting and am in need for a script that does the following. I have bits and pieces created and tested but i am just having a little difficult time getting it all together.
- Loop through till it finds a string in a specific file.
Any help is greatly appreciated.
... (1 Reply)
Hi,
I have a doubt in usage of while loop in Shell script as Iam new to this.
My requirement is that,I have two different directories containing some files which move files to other folder after parsing is done.
In my script i wanted to add a while loop which checks for the count in these two... (5 Replies)
Hi,
I'm using Ksh and I'm seeing some of code in my programme as given below.
Could you please let me know whats is this meeaing ?
(I'm new to this unix)
grep "1034" /u/kkk/bin/temp5.lst|cut -c1-2 >/u/kkk/bin/temp6.lst
if
then
echo ""
... (2 Replies)
hi i was wondering if someone can help me with a while loop..i have been looking at this for hours and dont no wut to do..
i have to make a menu style.. to have a beeter understanding i have linked a photo at the bottom...
http://www.mypicx.com/uploadimg/772204432_08022011_1.pngand then
... (1 Reply)
hi.. this is shell scripting lab15.sh
i dont understand this lab i am at the screen shot part. i was wondering if someone can take a quick look at this lab i have linked the doc below. i dont know where to start
i have did the
Required Errorlevels
Errorlevel # but dont... (1 Reply)
I am trying to create an Expect script that does the following:
1) Telnets to an IP address and logs in with user ID and Password
2) Issue a CLI command to the server that will output data of which I am particularly interested in a DS1 clock 'Slips' value. I want to be able to keep issuing... (0 Replies)
Hi,
I am using ksh , when i try to use for loop i am getting the expected output.
$for variable in $(ps -fu user | grep -i something/ | grep -i something | grep -v grep | awk '{print $2}');do
> grep $variable /tmp/some_path/*/*
> done
when tried the below to remote server, getting... (4 Replies)
Hello,
I am practicing creating loops in bash scripting. I am trying to understand the different uses of the for loop. I have a script I made below with some help.
#/bin/bash
#This script will take the extension of a file in ls command and echo a certain statement based on what type of... (6 Replies)
Discussion started by: shah9250
6 Replies
LEARN ABOUT PLAN9
fitcircle
FITCIRCLE(l) FITCIRCLE(l)
NAME
fitcircle - find mean position and pole of best-fit great [or small] circle to points on a sphere.
SYNOPSIS
fitcircle [ xyfile ] -Lnorm [ -H[nrec] ] [ -S ] [ -V ] [ -: ] [ -bi[s][n] ]
DESCRIPTION
fitcircle reads lon,lat [or lat,lon] values from the first two columns on standard input [or xyfile]. These are converted to cartesian
three-vectors on the unit sphere. Then two locations are found: the mean of the input positions, and the pole to the great circle which
best fits the input positions. The user may choose one or both of two possible solutions to this problem. The first is called -L1 and the
second is called -L2. When the data are closely grouped along a great circle both solutions are similar. If the data have large dispersion,
the pole to the great circle will be less well determined than the mean. Compare both solutions as a qualitative check.
The -L1 solution is so called because it approximates the minimization of the sum of absolute values of cosines of angular distances. This
solution finds the mean position as the Fisher average of the data, and the pole position as the Fisher average of the cross-products
between the mean and the data. Averaging cross-products gives weight to points in proportion to their distance from the mean, analogous to
the "leverage" of distant points in linear regression in the plane.
The -L2 solution is so called because it approximates the minimization of the sum of squares of cosines of angular distances. It creates a
3 by 3 matrix of sums of squares of components of the data vectors. The eigenvectors of this matrix give the mean and pole locations. This
method may be more subject to roundoff errors when there are thousands of data. The pole is given by the eigenvector corresponding to the
smallest eigenvalue; it is the least-well represented factor in the data and is not easily estimated by either method.
-L Specify the desired norm as 1 or 2, or use -L or -L3 to see both solutions.
OPTIONS
xyfile ASCII [or binary, see -b] file containing lon,lat [lat,lon] values in the first 2 columns. If no file is specified, fitcircle will
read from standard input.
-H Input file(s) has Header record(s). Number of header records can be changed by editing your .gmtdefaults file. If used, GMT default
is 1 header record.
-S Attempt to fit a small circle instead of a great circle. The pole will be constrained to lie on the great circle connecting the pole
of the best-fit great circle and the mean location of the data.
-V Selects verbose mode, which will send progress reports to stderr [Default runs "silently"].
-: Toggles between (longitude,latitude) and (latitude,longitude) input/output. [Default is (longitude,latitude)]. Applies to geo-
graphic coordinates only.
-bi Selects binary input. Append s for single precision [Default is double]. Append n for the number of columns in the binary file(s).
[Default is 2 input columns].
EXAMPLES
Suppose you have lon,lat,grav data along a twisty ship track in the file ship.xyg. You want to project this data onto a great circle and
resample it in distance, in order to filter it or check its spectrum. Try:
fitcircle ship.xyg -L2
project ship.xyg -Cox/oy -Tpx/py -S -pz | sample1d -S-100 -I1 > output.pg
Here, ox/oy is the lon/lat of the mean from fitcircle, and px/py is the lon/lat of the pole. The file output.pg has distance, gravity data
sampled every 1 km along the great circle which best fits ship.xyg
SEE ALSO gmt(1gmt), project(1gmt), sample1d(1gmt)
1 Jan 2004 FITCIRCLE(l)