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Top Forums Shell Programming and Scripting Bash assign string to variable Post 302493465 by ghostdog74 on Wednesday 2nd of February 2011 08:39:03 PM
Old 02-02-2011
Quote:
Originally Posted by Scrutinizer
let is an arithmetic assignment in ksh.
as well as bash. it's actually all right to use it.

---------- Post updated at 08:39 PM ---------- Previous update was at 08:35 PM ----------

Quote:
Originally Posted by lio123
Thanks ,it works
How can I check if the product id exist with this line
`grep "$id" invertory | cut -c6-10`
what kind of return is going to have if it is eof and it didnt find it
man test. you can find test options to check for null strings. Or you can try checking $?
 

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MPSCNNLocalContrastNormalizationGradientNode(3) 	 MetalPerformanceShaders.framework	   MPSCNNLocalContrastNormalizationGradientNode(3)

NAME
MPSCNNLocalContrastNormalizationGradientNode SYNOPSIS
#import <MPSNNGraphNodes.h> Inherits MPSNNGradientFilterNode. Instance Methods (nonnull instancetype) - initWithSourceGradient:sourceImage:gradientState:kernelWidth:kernelHeight: Class Methods (nonnull instancetype) + nodeWithSourceGradient:sourceImage:gradientState:kernelWidth:kernelHeight: Properties float alpha float beta float delta float p0 float pm float ps NSUInteger kernelWidth NSUInteger kernelHeight Method Documentation - (nonnull instancetype) initWithSourceGradient: (MPSNNImageNode *__nonnull) sourceGradient(MPSNNImageNode *__nonnull) sourceImage(MPSNNGradientStateNode *__nonnull) gradientState(NSUInteger) kernelWidth(NSUInteger) kernelHeight + (nonnull instancetype) nodeWithSourceGradient: (MPSNNImageNode *__nonnull) sourceGradient(MPSNNImageNode *__nonnull) sourceImage(MPSNNGradientStateNode *__nonnull) gradientState(NSUInteger) kernelWidth(NSUInteger) kernelHeight Property Documentation - alpha [read], [write], [nonatomic], [assign] The value of alpha. Default is 0.0 The default value 0.0 is not recommended and is preserved for backwards compatibility. With alpha 0, it performs a local mean subtraction. The MPSCNNLocalContrastNormalizationNode used with the MPSNNGraph uses 1.0 as a default. - beta [read], [write], [nonatomic], [assign] The value of beta. Default is 0.5 - delta [read], [write], [nonatomic], [assign] The value of delta. Default is 1/1024 - (NSUInteger) kernelHeight [read], [nonatomic], [assign] - (NSUInteger) kernelWidth [read], [nonatomic], [assign] - p0 [read], [write], [nonatomic], [assign] The value of p0. Default is 1.0 - pm [read], [write], [nonatomic], [assign] The value of pm. Default is 0.0 - ps [read], [write], [nonatomic], [assign] The value of ps. Default is 1.0 Author Generated automatically by Doxygen for MetalPerformanceShaders.framework from the source code. Version MetalPerformanceShaders-100 Thu Feb 8 2018 MPSCNNLocalContrastNormalizationGradientNode(3)
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