Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

Plotting Data within UNIX

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Plotting Data within UNIX
Prev   Next
# 5  
Old 01-29-2009
Hi.

Yes, I used the dumb terminal to show the results from the general flow of data.

This will produce a Postscript plot on file t2, and then ghostscript, gs, can be used to look at it:
Code:
#!/usr/bin/env bash

# @(#) s1       Demonstrate feed data to gnuplot.
# See:
# http://www.gnuplot.info/docs/node131.html

echo
set +o nounset
LC_ALL=C ; LANG=C ; export LC_ALL LANG
echo "Environment: LC_ALL = $LC_ALL, LANG = $LANG"
echo "(Versions displayed with local utility \"version\")"
version >/dev/null 2>&1 && version "=o" $(_eat $0 $1) cut gnuplot gs
set -o nounset
echo

FILE=${1-data1}

echo " Raw data file $FILE:"
cat $FILE

# Create a header line, extract data, feed into gnuplot.

# echo 'set terminal dumb 30 15 ; plot "-"' >t1
echo 'set terminal postscript eps colour; plot "-"' >t1
cut -f3 -d " " $FILE >>t1

echo
echo " Dataset as fed into gnuplot:"
cat t1

echo
echo " Results:"
gnuplot < t1 > t2
gs t2

exit 0

Look over the documentation to see what other devices can be used, gnuplot ... cheers, drl
 
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Fun with terminal plotting JSON data at the command line

One of the great thing about unix is the ability to pipe multiple programs together to manipulate data. Plain, unstructured text is the most common type of data that is passed between programs, but these days JSON is becoming more popular. I thought it would be fun to pipe together some command... (1 Reply)
Discussion started by: kbrazil
1 Replies

2. Slackware

Grace and plotting

I am making mathematical graphics in grace, all is working, but my curves are not totally smooth,..i have equal problem in gnuplot,... can i do anything??:confused: (4 Replies)
Discussion started by: gitac
4 Replies

3. UNIX for Dummies Questions & Answers

Help with Plotting a graph using Perl

Dear all, I have a hash in my data file and I'd like to output the data contained within as a graph (can be lines or histogram form) but I dont know how to do this with Perl. Can somone suggest how I can have a graph with Keys of the hash being on the X-axis and the Values for the keys plotted on... (1 Reply)
Discussion started by: pawannoel
1 Replies

4. UNIX for Dummies Questions & Answers

Plotting boxes in gnuplot

When I plot a set of data in gnuplot from a file like: 1 5 2 3 4 6 5 1 using plot "file.txt" w boxes I would expect that at the x value of 3 it will go to a value of 0 for y... but it doesn't. Is there a way to fix that, or do I actually have to type by hand an... (1 Reply)
Discussion started by: cosmologist
1 Replies

5. UNIX for Dummies Questions & Answers

Help with extracting data and plotting

I have attached a txt file, what I would like to be able to do is: 1. Extract Data from Columns labeled E/N and Ko into a new file 2. Then in the new file I would like to be able to plot E/N on the X axis and Ko on the y axis. 3. Lastly I would like to be able to extract multiple data sets and... (6 Replies)
Discussion started by: gingburg
6 Replies

6. Shell Programming and Scripting

Extracting ICMP Output for Plotting

Dear, I want to perform a plotting using xgraph, and the plotting data (ping.txt) is as below. For the graph I just want to plot the time for x-axis (line count) and the RTT for y-axis (time in ms). Below are script i write for that purpose but it seen did not work. Any guide for me because i... (1 Reply)
Discussion started by: Paris Heng
1 Replies

7. UNIX for Advanced & Expert Users

Gnuplot question: plotting 3D data in map view

I have a simple gnuplot question. I have a set of points (list of x,y,z values; irregularly spaced, i.e. no grid) that I want to plot. I want the plot to look like this: - map view (no 3D view) - color of each point should depend on z-value. - I want to define my own color scale - plot should... (1 Reply)
Discussion started by: karman
1 Replies

8. Shell Programming and Scripting

automated plotting

Hi, I would like to make a lot of plots with for instance xmgrace and don't know how. I have a directory with about 500 data files with the same structure and I want to plot always the same columns. I don't know how to call xmgrace to produce a, say, gif plot of the columns 3 and 4 of... (2 Replies)
Discussion started by: pau
2 Replies

9. UNIX for Dummies Questions & Answers

Help Plotting

I need to plot some files with the extension .plot, which I believe is a UNIX Plot(5) extension. Is UNIX Plot(5) something that I must download, or is it already built into UNIX? If it is already built in, is there a trick to actually plotting the files? Is there anything online that I could... (0 Replies)
Discussion started by: evenkolder
0 Replies
Login or Register to Ask a Question

LEARN ABOUT OSX

getpeereid

GETPEEREID(3)						   BSD Library Functions Manual 					     GETPEEREID(3)

NAME

     getpeereid -- get the effective credentials of a UNIX-domain peer

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/types.h>
     #include <unistd.h>

     int
     getpeereid(int s, uid_t *euid, gid_t *egid);

DESCRIPTION

     The getpeereid() function returns the effective user and group IDs of the peer connected to a UNIX-domain socket.	The argument s must be a
     UNIX-domain socket (unix(4)) of type SOCK_STREAM on which either connect(2) or listen(2) have been called.  The effective used ID is placed
     in euid, and the effective group ID in egid.

     The credentials returned to the listen(2) caller are those of its peer at the time it called connect(2); the credentials returned to the
     connect(2) caller are those of its peer at the time it called listen(2).  This mechanism is reliable; there is no way for either side to
     influence the credentials returned to its peer except by calling the appropriate system call (i.e., either connect(2) or listen(2)) under
     different effective credentials.

     One common use of this routine is for a UNIX-domain server to verify the credentials of its client.  Likewise, the client can verify the cre-
     dentials of the server.

IMPLEMENTATION NOTES

     On FreeBSD, getpeereid() is implemented in terms of the LOCAL_PEERCRED unix(4) socket option.

RETURN VALUES

     The getpeereid() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indi-
     cate the error.

ERRORS

     The getpeereid() function fails if:

     [EBADF]		The argument s is not a valid descriptor.

     [ENOTSOCK] 	The argument s is a file, not a socket.

     [ENOTCONN] 	The argument s does not refer to a socket on which connect(2) or listen(2) have been called.

     [EINVAL]		The argument s does not refer to a socket of type SOCK_STREAM, or the kernel returned invalid data.

SEE ALSO

     connect(2), getpeername(2), getsockname(2), getsockopt(2), listen(2), unix(4)

HISTORY

     The getpeereid() function appeared in FreeBSD 4.6.

BSD
								   July 15, 2001							       BSD