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Top Forums Shell Programming and Scripting Gnu tool; sed awk echo etc to prepend or append string to a file Post 302992703 by Scrutinizer on Tuesday 28th of February 2017 04:55:28 PM
Old 02-28-2017
Quote:
Originally Posted by bash_in_my_head
I have been attempting to replace "checkhosts" num=$RANDOM
How can i do this? Currently when i place single quotes, double quotes or no quotes I get an error..
Code:
num=$RANDOM
echo $num


Code:
{    printf "nodegroups:\n  $num: L@"   cat input_file } > new_file

There needs to be either a newline or a semi-colon before the closing curly
brace..
 

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frexp(3M)						  Mathematical Library Functions						 frexp(3M)

NAME
frexp, frexpf, frexpl - extract mantissa and exponent from a floating-point number SYNOPSIS
c99 [ flag... ] file... -lm [ library... ] #include <math.h> double frexp(double num, int *exp); float frexpf(float num, int *exp); long double frexpl(long double num, int *exp); DESCRIPTION
These functions break a floating-point number into a normalized fraction and an integral power of 2. They store the integer exponent in the int object pointed to by exp. RETURN VALUES
For finite arguments, these functions return the value x, such that x is a double with magnitude in the interval [1/2, 1) or 0, and num equals x times 2 raised to the power *exp. If num is NaN, NaN is returned and the value of *exp is unspecified. If num is +- 0, +- 0 is returned and the value of *exp is 0. If num is +-Inf, num is returned and the value of *exp is unspecified. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
isnan(3M), ldexp(3M), modf(3M), attributes(5), standards(5) SunOS 5.11 12 Jul 2006 frexp(3M)
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