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Full Discussion: how to keep newline characters in command execution result?
Top Forums Shell Programming and Scripting how to keep newline characters in command execution result? Post 302154948 by pankai on Wednesday 2nd of January 2008 02:42:08 PM
Old 01-02-2008
how to keep newline characters in command execution result?
I found that when I used a variable to receive the result from a command execution, the newline characters were removed from the variable.

For example, I ran

$ ret=`ls -l`
$ echo $ret

Then, I saw:
total 40 -rw-r--r-- 1 testtrunk testtrunk 0 Dec 13 11:13 pk -rw-rw-r-- 1 testtrunk testtrunk 0 Dec 13 11:13 pk1

But the output I expected is:
total 40
-rw-r--r-- 1 testtrunk testtrunk 0 Dec 13 11:13 pk
-rw-rw-r-- 1 testtrunk testtrunk 0 Dec 13 11:13 pk1

So, the question is, how to keep the newline characters in the variable that receives the command result?

Thanks.
 

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LEARN ABOUT DEBIAN

skycoor

skycoor(1)						      General Commands Manual							skycoor(1)

Name
       skycoor - Convert coordinates

Synopsis
       skycoor [-bdgjv] [-n ndec] ra1 dec1 sys1 ... ran decn sysn
       or
       skycoor [-vbjg] [-n ndec] @listfile

Description
       skycoor	converts  coordinates  between the J2000, B1950, and galactic coordinate systems, rounding to a specified number of decimal places
       and printing in degrees or hh:mm:ss.sss dd:mm:ss.sss.  Input coordinates may also be in either format, and the system (J2000, B1950, or ga-
       lactic) may be in upper or lower case.  No spaces are allowed within  the individual coordinates

Options
       -b     B1950 (FK4) output

       -d     RA and Dec output in degrees

       -e     Ecliptic longitude and latitude output

       -g     Galactic longitude and latitude output

       -i r|d|
	      Input units (r=radians, d=degrees, else hh:mm:sss dd:mm:sss)

       -j     J2000 (FK5) output

       -n <num>
	      Number of decimal places in output RA seconds

       -o <num>
	      Offset coordinates by this many arcseconds

       -p     RA and Dec proper motion in milliarcseconds/year

       -q     Output system, including equinox

       -r <RA> <Dec> <RA> <Dec>
	      Angular separation between two RA, Dec pairs

       -s     Output ra= dec= epoch= radecsys= for sethead

       -v     Print more intermediate information

       -w     Convert RA, Dec equatorial coordinates to x,y,z

       -x     Convert x,y,z equatorial coordinates to RA, Dec

       -y <epoch>
	      Epoch of coordinates in years

Author
       Doug Mink, SAO (dmink@cfa.harvard.edu)

9 November 2001 						     WCSTools								skycoor(1)
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