redirect time command output to file (cygwin bash) Post: 302671833

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Top Forums Shell Programming and Scripting redirect time command output to file (cygwin bash) Post 302671833 by LMHmedchem on Saturday 14th of July 2012 05:26:37 PM

07-14-2012

Registered User

You are right that I mistakenly thought I was running the gnu time program when I was really using the bash time argument. Am I right in guessing that this reports the time it takes the bash command to execute and not the time it takes the program to run, or is there a difference?

GNU time gives more detailed output, such a page faults, etc. I thought I tried /usr/bin/time at some point, but that didn't work. I will have to give that a try and see if I can get it working. Which says that it's there. One of the issues I as thinking of is that the log file already exists, so I would want -a, but I didn't know if I could do -a without first having used -o to create the file.

This is the current version of the script,

Code:

#!/usr/bin/bash

# t value
TIMEOUT=1000
# n value
NCLIENTS=4

echo "testing output" > test_times.txt
echo "" >> test_times.txt

# list input file sizes here (number of compounds)
SIZE=( 1K 10K 100K 500K 1M )

for SIZE in ${SIZE[@]}
do
   echo "Runtimes for servlet 4," $SIZE "structures" >> test_times.txt
   echo "" >> test_times.txt

#  list values for N here
   CPDS=( 10 100 500 1000 2500 5000 10000 25000 50000 75000 100000 )

   for CPDS in ${CPDS[@]}
   do
      echo "Runs where N="$CPDS >> test_times.txt 

#     list number of repetitions for each run
      REP=( 1 2 3 4 5 )

      for REP in ${REP[@]}
      do
         echo 'run' $REP 'test_ActiMol_'$SIZE'.sdf -n 4 -t 1000 -l 100 -d t -N' $CPDS >> test_times.txt 
         ( time ./servert.exe -n $NCLIENTS -t $TIMEOUT -l 100 -d t -N $CPDS \
           -i  'test_ActiMol_'$SIZE'.sdf' \
           -o  'test_ActiMol_'$SIZE'_'$CPDS'N_'$REP'.s' ) >> test_times.txt 2>&1

         echo "TIMEOUTS=" $(grep -c "TIMEOUT" 'test_ActiMol_'$SIZE'_'$CPDS'N_'$REP'.s') >> test_times.txt
         echo "SEGFAULTS=" $(grep -c "SEGFAULT" 'test_ActiMol_'$SIZE'_'$CPDS'N_'$REP'.s') >> test_times.txt
         echo "NUMBER PROCESSED=" $(wc -l 'test_ActiMol_'$SIZE'_'$CPDS'N_'$REP'.s') >> test_times.txt
         echo "" >> test_times.txt

#        print something to the terminal to monitor progress
         echo 'completed run' $REP 'test_ActiMol_'$SIZE'.sdf -n' $NCLIENTS '-t' $TIMEOUT '-l 100 -d t -N' $CPDS

      done
      echo "" >> test_times.txt 

   done
      echo "" >> test_times.txt
      echo "" >> test_times.txt 

done

unix2dos test_times.txt

It seems as if some of the multiple echo statements could be reduced using the here-document that Corona688 suggested. I will look into that. It also seems that I could echo a couple of newlines at once instead of doing it several times to insert several blank lines.

LMHmedchem

LMHmedchem

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LEARN ABOUT XFREE86

libbash

LIBBASH(7)							  libbash Manual							LIBBASH(7)

NAME

     libbash -- A bash shared libraries package.

DESCRIPTION

     libbash  is  a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
     want to load and use in scripts of your own.

     It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.

     Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1).  A bash shared library that can be  loaded
     using
     ldbash(1) must answer 4 requirments:

     1.     It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).

     2.     It must contain a line that begins with '#EXPORT='.  That line will contain (after the '=') a list of functions that the library
	    exports.  I.e. all the function that will be usable after loading that library will be listed in that line.

     3.     It must contain a line that begins with '#REQUIRE='.  That line will contain (after the '=') a list of bash libraries that are
	    required for our library.  I.e. every bash library that is in use in our bash library must be listed there.

     4.     The library must be listed (For more information, see ldbashconfig(8)).

   Basic guidelines for writing library of your own:
     1.     Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.

     2.     Try to declare all variables intended for internal use as local.

     3.     Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
		  __<library_name>_
	    For example, internal function myfoosort of hashstash library should be named as
		  __hashstash_myfoosort
	    This helps to avoid conflicts in global name space when using libraries that come from different vendors.

     4.     See html manual for full version of this guide.

AUTHORS

     Hai Zaar <haizaar@haizaar.com>
     Gil Ran <ril@ran4.net>

SEE ALSO

     ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1)

Linux								       Epoch								     Linux

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