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Shell Programming and Scripting
help to ping a host, is it alive or not ...
Post 61005 by google on Wednesday 26th of January 2005 08:26:20 PM
01-26-2005
Code:
a=1
while (test "$a"!="0")
do
for ipadr in $(cat ipadress)
do
ping $ipadr
if [ $? -ne 0 ]
then
echo "$ipadr is alive"
else
echo $ipadr" is dead"
$ipadr >> noresponseip
fi
done
done
#./strike
) Finally, you should set a=0 at some point to exit the loop! Maybe trap a signal or an event like when you hit CNTRL-CLast edited by google; 01-28-2005 at 09:07 AM..
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LEARN ABOUT OSX
clogl
CLOG(3) BSD Library Functions Manual CLOG(3) NAME
clog -- complex logarithm function SYNOPSIS
#include <complex.h> double complex clog(double complex z); long double complex clogl(long double complex z); float complex clogf(float complex z); DESCRIPTION
clog(z) returns the complex logarithm of z. clog(conj(z)) = conj(clog(z)), for all complex floating-point numbers z. SPECIAL VALUES
The conjugate symmetry of clog() is used to abbreviate the specification of special values. clog(-0 + 0i) returns -inf + Pi i and raises the divide-by-zero flag. clog(0 + 0i) returns -inf + 0i and raises the divide-by-zero flag. clog(x + inf i) returns inf + Pi/2 i, for finite x. clog(x + NaN i) returns NaN + NaN i. clog(-inf + yi) returns inf + Pi i, for finite positive y. clog(inf + yi) returns inf + 0i, for finite positive y. clog(-inf + inf i) returns inf + 3Pi/4 i. clog(inf + inf i) returns inf + Pi/4 i. clog(+-inf + NaN i) returns inf + NaN i. clog(NaN + yi) returns NaN + NaN i, for finite y. clog(NaN + inf i) returns inf + NaN i. clog(NaN + NaN i) returns NaN + NaN i. NOTES
SEE ALSO
cexp(3) log(3) complex(3) STANDARDS
The clog() function conforms to ISO/IEC 9899:2011. 4th Berkeley Distribution December 11, 2006 4th Berkeley Distribution