Sanjay says: in terminal window: edit>>Profile Preferences>>Scrolling
then uncheck 512 lines and choose your poison
Joel
Carleton Astronet Admin Log
Sanjay says: in terminal window: edit>>Profile Preferences>>Scrolling
then uncheck 512 lines and choose your poison
Joel
suppose you want to select a column (or more) in a file?
in vi or vim:
1. select a corner of desired region
2. contol v (start Visual block)
3. move cursor to opposite corner and
4. you will see the desired box highlighted!
5. then do what you will with that highlighted region. eg d(elete)
6. to paste it elsewhere, move cursor to desired location and p(aste)
(Note if I tried y(ank) instead of d, I got full lines in buffer rather than desired box)
Added 2018 Jul 29: For kate, cntrl-shift-b enables similar block mode for delete at least. However, multiple write doesnt come until v 4.12 and we seem to have v3.4. –jmw
-Joel (from Nina Gusinskaia , University of Amsterdam Pannekoek Institute)
By default, the version of Okular available to CentOS 6 does not show the viewed document’s filename in the Okular window titlebar, but rather the value of the “Document Title” property embedded in the document being viewed. This is bad news because the Document Title property is usually set to the name of the app that created the document, making it difficult to tell multiple documents generated by the same app apart.
You can force Okular to set it’s window titlebar value to the name of the file being viewed by editing the file ~/.kde/share/config/okularpartrc and appending this line to the ‘[General]’ section:
DisplayDocumentTitle=false
When you finish, the file will end up looking like this:
[General]
UseKTTSD=false
DisplayDocumentTitle=false
Thanks Bruce!
June 15, 2015
A second incident of login getting hung after kernel update is found. The first incident was reported on Aug 2, 2014. As usual when users type in user name and password at the login window and hit login the login process gets frozen and cannot get to the desktop. It appeared to only affect tsch (using .cshrc) users.
The solution is to hit ctrl-c and then rm .history to get rid of the .history file. Note that if you do it from ssh, it might cause the host to reboot.
Canopus and Algol got updated over the weekend to kernel version 2.6.32-504.23.4.el6.x86_64. Hence it seems like it is only affecting these two hosts.
-Yuping & Bruce
I installed mingw64-pkg-config.x86_64
It seems like it need to pull in its sister package e2fsprogs before compiling dump by typing in the /root/ directory
$ git clone git://git.kernel.org/pub/scm/fs/ext2/e2fsprogs.git
$./configure –enable-elf-shlibs
$ make
$ make check
$ make install
$ make install-libs
which puts the binary file in /usr/bin or /usr/local/…
then go to the dump source file, type
http://surf.ml.seikei.ac.jp/~nakano/dump-restore/dump-restore-mini-HOWTO.en.html
This post is for the old fortran computing programs (except TEMPO)
The moral of the story to compile those old programs in 32-bit on the 64-bit machines, because I could not find any documentation online re how f77 compiles differently in 64-bit and 32-bit. However, we do know that programs compiled in 64 bit behave differently from those compiled in 32-bit (for example the size of some data type are different). Therefore, on the 64-bit machines we should force compile these old programs in 32-bit to ensure consistency. The steps are as follows.
1. Make sure that your $PGPLOT_DIR environmental variable points to /usr/share/astro/psrchive/pgplot_32bits
2. Look at the make file. Add “-m32” to FFLAGS (meaning force compile in 32 bit for fortran) and make sure that the f77 step says f77 $(FFLAGS) in order that the FFLAGS be invoked.
Make sure that the LIBS line have all of the following especially $(PGPLOT_DIR)
LIBS = -L$(PGPLOT_DIR) -lpgplot -L/usr/X11R6/lib -lX11 -lpng
Then we should be fine
–Yuping
—————————————————————————-
Pulling in additional 32-bit compat library when the compiler complains about not having it:
Do a google search to see what packages provide those libraries (theoretically “yum provides filename” should work but I never succeed on our computer. Useful stuff is “yum search keyword” which search through the available packages. Always pick the package ending with i686 (which stands for 32-bit) and devel if available
for example I see -lz and google tells me zlib is what I need. I run “yum search zlib” and just pick the one with “devel” and “i686″(meaning 32 bit). So I will type “sudo yum install zlib-xxxx-devel-i686
to determine operating system type, cat /etc/redhat-release
thanks bruce!
ldd <path/executablename> lists what libraries it is looking for (or currently using)
ltrace <executablename programarguments> traces what executable is doing with libs and other stuff and if it gets stuck there’s your problem. (Note this actually runs program which is why input params are needed)
strace <executablename programarguments> show files opening and closing. This also requires running the program. Since the output is extremely lengthy you might want to save it to blablabla.txt by
$strace -o blablabla.txt <executablename programarguments>
If you want to just trace specific system calls (for example open,read since you are interested in what the program is using) you can type
$strace -e open,read <executablename programarguments>
This will give only open and read calls.
-Yuping Huang
AS OF 2020 Sep (and I believe much earlier), using the graphics displayer EVINCE automatically puts filename on banner, and furthermore the following did not work with other viewers. Therefore consider the following to be “deprecated” (withdrawn) –jmw
To actually use evince from the command line, type evince <filename> &
To actually use evince in a nautilus file manager, select (click on) the desired file, and go to
file>>open with>>evince
Commonly when one prints plots to a postscript from IDL and open it with evince(as we always do), the banner of the evince window perennially shows “Graphics Produced By IDL”, which is not helpful at all especially when you’re plotting a thousand plots and trying to compare them.
Hence a pair of IDL routines (OPENPS and CLOSEPS )can be called now to make the output PS file display the file name at the banner and to make the plotting to file process slightly less complicated. The way to call them is as follows:
OPENPS, blablabla.ps //Before you plot anything. This will set the output device to blablabla.ps and by default color plot
[ DEVICE, FONT_SIZE=9] //This is the optional part if you want anything about the graph beyond color, see IDL documentation on DEVICE for more
//information. Note that you may overwrite the color attribute here by saying DEVICE,/COLOR=PS
plot,bla
overplot.bla //Plot and add labels and do whatever as you like
CLOSEPS //When you’re done with one graph, simply call CLOSEPS, it will save the file for you and set the plotting device back to xwindows
WARNING: DO CLOSEPS BEFORE YOU OPENPS A NEW FILE. IN OTHER WORDS, EACH PLOT FILE MUST BE ENCLOSED BY A PAIR OF
OPENPS-CLOSEPS statement.
For more information, the code locates at /usr/share/astro/idlshare/locallib, or email huangy@carleton.edu.
-yuping
TEMPO 2 is the newer pulsar timing package. FFTW3 is a fast fourier transformation library. CFITSIO is the NASA library for reading FITS format images. All of them are installed under $PSRHOME. there’s another installation documenting file 00READMECarleton under that folder. FFTW3 and cfitsio are the dependencies for some of the tempo2 plugins and psrchive.
1. FFTW 3.3.4 is obtained from http://www.fftw.org/download.html, unzip the tar file then
./configure –prefix=$PSRHOME/FFTW3/
sudo make
sudo make check
sudo make install
This will install the double precision FFTW3 library for TEMPO 2. However, the single-precision fftw
library that psrchive might require is not installed yet.
2.CFITSIO 3.370 is obtained from http://heasarc.gsfc.nasa.gov/fitsio/, unzip, cd, then
./configure –prefix=$SOFTWARE_DIR
sudo make shared
sudo make install
3. TEMPO2 is obtained by CVS anonymous checkout
cvs -z3 -d:pserver:anonymous@tempo2.cvs.sourceforge.net:/cvsroot/tempo2 co tempo2
The installation requires an amount of modification of config files (pgplot compilation flag, fixing bugs).
See 00REAMECarleton for details. But basically you do
./bootstrap setenv TEMPO2 $PSRHOME/tempo2/ ./configure --prefix=$PSRHOME/tempo2/ --with-cfitsio-dir=$PSRHOME/cfitsio/ --with-fftw3-dir=$PSRHOME/FFTW3/ F77=f77 sudo make && sudo make install sudo make plugins && sudo make plugins-install
-Yuping