- Source: Clobbering
- Cat (Unix)
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- Clobber
- Clobber (disambiguation)
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- Clippety Clobbered
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- Subnormal number
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In software engineering and computer science, clobbering a file, processor register or a region of computer memory is the process of overwriting its contents completely, whether intentionally or unintentionally, or to indicate that such an action will likely occur. The Jargon File defines clobbering as
To overwrite, usually unintentionally: "I walked off the end of the array and clobbered the stack." Compare mung, scribble, trash, and smash the stack.
POSIX
Memory or file overwrites in POSIX systems, as well as in shells such as Bash, often happen unintentionally - such as using the > redirection operator. Therefore, to prevent unintentional clobbering, various means can be used - for example, setting the shell parameter set -o noclobber (bash, ksh) or set noclobber (csh, tcsh) will prevent > from clobbering by making it issue an error message instead:
The default behavior of the mv and cp commands is to clobber their destination file if it already exists. This behavior may be overridden by invoking or aliasing the commands with the -i switch, causing the commands to prompt the user before overwriting the destination file, or -n to not transfer source files with a naming conflict.
Makefiles
In makefiles, a common target clobber means complete cleanup of all unnecessary files and directories produced by previous invocations of the make command. It is a more severe target than clean and is commonly used to uninstall software. Some make-related commands invoke "make clobber" during their execution. They check the CLOBBER environment variable. If it is set to OFF then clobbering is not done.
Assembly
In assembler programming - including inline extended assembly as supported in C and C++ through GCC - the term clobbered registers is often used to denote any registers whose value may be overwritten during the course of executing an instruction or instructions.
References
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Clobbering - Wikipedia
In software engineering and computer science, clobbering a file, processor register or a region of computer memory is the process of overwriting its contents completely, whether intentionally …
CLOBBERING | English meaning - Cambridge Dictionary
CLOBBERING definition: 1. present participle of clobber 2. to hit someone or something hard and repeatedly: 3. to punish…. Learn more.
Clobber Definition & Meaning - Merriam-Webster
The meaning of CLOBBER is clothes. How to use clobber in a sentence.
CLOBBERING Synonyms: 216 Similar Words - Merriam-Webster
Synonyms for CLOBBERING: hammering, thrashing, bashing, pounding, pummeling, pummelling, licking, bludgeoning, blow, battering
CLOBBERING | definition in the Cambridge English Dictionary
CLOBBERING meaning: 1. present participle of clobber 2. to hit someone or something hard and repeatedly: 3. to punish…. Learn more.
Clobbering - definition of clobbering by The Free Dictionary
To strike violently and repeatedly; batter or maul. 2. To defeat decisively. 3. To criticize harshly....
Clobber Definition & Meaning | Britannica Dictionary
Some guy was clobbering [= beating] him in the parking lot. If you say anything I'll clobber you. We clobbered them in our last game. Businesses are being/getting clobbered by the bad …
CLOBBER definition and meaning | Collins English Dictionary
Wolves are first, wearing that famous old gold clobber. Down the steps they run in their solar red clobber. Their loss is our gain and the store is a treasure trove of expensive designer clobber.