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单词 shar
释义

shar


shar

(tool, file format)("Shell archive", after ar and tar)Any of the many Unix programs that creates a flattenedrepresentation of one or more files, with the unique propertythat it can be unflattened (the original files extracted)merely by feeding it through a standard Unix shell. Theoutput of shar, known as a "shar file" or "sharchive", can bedistributed to anyone running Unix, and no special unpackingsoftware is required.

Sharchives are intriguing in that they are typically createdby shell scripts; the script that produces sharchives is thusa script which produces self-unpacking scripts, which maythemselves contain scripts. The disadvantage of sharchivesare that they are an ideal venue for Trojan horse attacksand that, for recipients not running Unix, no simpleun-sharchiving program is possible; sharchives can and do makeuse of arbitrarily-powerful shell features and other Unixcommands.

Different implementations of shar vary in sophistication.Some just uuencode each input file and output commands touudecode the result, others include extensive checking tomake sure the files have been transferred without corruptionand that all parts of a multi-file sharchive have beenunpacked.

The unshar utility strips off mail and news headers beforepassing the remainder of its input to sh.

SHAR


AcronymDefinition
SHARShell Archive
SHARSea Harrier
SHARSuperannuation Holding Accounts Reserve (Australian government)
SHARSriharikota Range (Indian Space Research Organisation, India)
SHARShip Hostile Action Report
SHARSriharikota High Altitude Range (Indian Space Research Organisation)
SHARSimpsons: Hit and Run (video game)
SHARSelf Help Addiction Rehabilitation, Inc. (Detroit, MI; est. 1969)
SHARSocial History of Alcohol Review (journal; Alcohol and Temperance History Group)
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更新时间:2025/2/24 11:51:13