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Full Discussion: Hour display format
Top Forums UNIX for Beginners Questions & Answers Hour display format Post 302977056 by stomp on Monday 11th of July 2016 06:35:43 PM
Old 07-11-2016
Like this?

Code:
FILENAME_WANTED="HourlyDate_$(date +'%Y%m%d_%H%M').txt"
FILENAME_CURRENT='HourlyData_20160708_1500.txt'
if [ "$FILENAME_WANTED" == "$FILENAME_CURRENT" ]; then
   sqlloader $FILENAME_CURRENT
fi

And please notice, that single quotes '...' or double quotes "..." are valid for string encapsulation, but backticks `...` are not. Backticks - which you used in your example - are used for command substitution.

The following is string encapsulation(string is assigned as written):

Code:
filenm='HourlyData_20160708_1500.txt'



The following is command substitution(executes the command date and puts the output in its place):

Code:
tm=`date +"%H"`
tm=$(date +"%H")

The notation of the two lines result in the same effect. The first is the historical one. The seconde is the newer bash-form. I prefer the latter and never use backticks because of the likeleyhood of confusion to mix the similar looking quotes.


And please notice also that there are no space allowed in variable assignment before and after the equal.

Example:

This is bad(Produces Error "filename": command not found):

Code:
filename = 'HourlyData_20160708_1500.txt'

This is also bad(Assigns empty value to variable filename and produces Error 'HourlyData_20160708_1500.txt' command not found):

Code:
filename= 'HourlyData_20160708_1500.txt'

This is good:

Code:
filename='HourlyData_20160708_1500.txt'

Last edited by stomp; 07-11-2016 at 08:02 PM..
 

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LEARN ABOUT CENTOS

xmark

Xmark(1)						      General Commands Manual							  Xmark(1)

NAME

       Xmark - summarize x11perf results

SYNTAX

       Xmark datafile

DESCRIPTION

       Xmark  is  a  shell  script that reads the indicated datafile and compiles a benchmark which it writes to standard output.  It writes three
       numbers:

	      A weighted performance number for the x11perf results.

	      A weighted performance number for a standard SparcStation 1, with SunOS 4.1.2, X11R5 Xsun, and a CG3 dumb Color Frame Buffer.

	      The Xmark, which is the ratio of the two numbers above.

       The datafile must be an ordinary file, produced by x11perf in the following way:

       x11perf -display display -v1.3 -rop GXcopy GXxor -all > datafile

       It is possible to run the GXcopy and GXxor tests separately, as long as they are concatenated to the same output file:
       x11perf -display display -v1.3 -rop GXcopy -all > datafile
       x11perf -display display -v1.3 -rop GXxor -all >> datafile
       or
       x11perf -display display -v1.3 -rop GXxor -all > datafile
       x11perf -display display -v1.3 -rop GXcopy -all >> datafile

FILES

       temp.$$
	      Temporary file created in the current directory, deleted after use.

DIAGNOSTICS

       Usage: Xmark datafile
	      Xmark was invoked without arguments or with more than one argument, or with options.  Xmark takes no options.

       Error: data file does not exist or is not ordinary.
	      Xmark cannot find the datafile named on its command line, or the datafile is a special file such as a directory.

       WARNING: datafile contains nnn, not 441 or 447 'trep' results;
	      The file named on the command line does not seem to be a file generated by x11perf in the expected way.

       Diagnostic: ERROR: sum of weights =nnn, not equal to 4566.0;
	      There is an internal error in Xmark.

SEE ALSO

       X(7), x11perf(1), x11perfcomp(1)

X Version 11							   x11perf 1.5.4							  Xmark(1)
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