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Full Discussion: Script returning 0
Top Forums Shell Programming and Scripting Script returning 0 Post 302769785 by donatas1234 on Wednesday 13th of February 2013 11:20:27 AM
Old 02-13-2013
Script returning 0
hello i write a script which calculate free space but he always is 0 thats wrong with my script?

Code:
getFileSystemPerformanceData()
{


  if [ -r /etc/issue ] ; then
     if grep -q "Ubuntu" /etc/issue ; then
         CMD="df -lP | grep -v "\/home" | grep -v "\/dev/mapper/VolGroup-lv_root""
      elif grep -q "Mageia" /etc/issue; then
        CMD="df -lP | sed -e '2d'"
       elif grep -q "Fedora" /etc/issue; then
          CMD="df -lP | grep -v "\/home" | grep -v "\/dev/mapper/VolGroup-lv_root""
       else
       CMD="df -lP"
       fi
   else
  CMD="df -lP"
  fi
  OUTPUT=`$CMD`
    echo "$OUTPUT" |
    ( # Skip the header-line
        read IGNORED
        SUM=0
        SIZE=0
        while read FS SIZE USED AVAIL PCT MOUNTED ; do
            SIZE=`echo "$AVAIL 1024" | awk '{print $1/$2}'`
            SUM=`echo "$SUM $SIZE" | awk '{print $1 + $2}'`
        done
        PERFCLASS=LogicalDisk;PERFINSTANCE=$FS;PERFMETRIC='Avail Megabytes';PERFINT=0;PERFSAMP=1;PERFAVG=$SUM;PERFMIN=$PERFAVG;PERFMAX=$PERFAVG;writePerformanceDataXml
    )
    
}

Last edited by Scrutinizer; 02-13-2013 at 07:15 PM.. Reason: moved closing code tag
 

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LEARN ABOUT REDHAT

script

SCRIPT(1)						    BSD General Commands Manual 						 SCRIPT(1)

NAME

     script -- make typescript of terminal session

SYNOPSIS

     script [-a] [-f] [-q] [-t] [file]

DESCRIPTION

     Script makes a typescript of everything printed on your terminal.	It is useful for students who need a hardcopy record of an interactive
     session as proof of an assignment, as the typescript file can be printed out later with lpr(1).

     If the argument file is given, script saves all dialogue in file.	If no file name is given, the typescript is saved in the file typescript.

     Options:

     -a      Append the output to file or typescript, retaining the prior contents.

     -f      Flush output after each write. This is nice for telecooperation: One person does `mkfifo foo; script -f foo' and another can super-
	     vise real-time what is being done using `cat foo'.

     -q      Be quiet.

     -t      Output timeing data to standard error. This data contains two fields, separated by a space. The first field indicates how much time
	     elapsed since the previous output. The second field indicates how many characters were output this time. This information can be used
	     to replay typescripts with realistic typing and output delays.

     The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not
     set) for the C-shell, csh(1)).

     Certain interactive commands, such as vi(1), create garbage in the typescript file.  Script works best with commands that do not manipulate
     the screen, the results are meant to emulate a hardcopy terminal.

ENVIRONMENT

     The following environment variable is utilized by script:

     SHELL  If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most
	    shells set this variable automatically).

SEE ALSO

     csh(1) (for the history mechanism), replay(1).

HISTORY

     The script command appeared in 3.0BSD.

BUGS

     Script places everything in the log file, including linefeeds and backspaces.  This is not what the naive user expects.

Linux								   July 30, 2000							     Linux
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