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examples/functions/basename2

 

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#From: "Grigoriy Strokin" <grg@philol.msu.ru>

 

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#Newsgroups: comp.unix.shell

 

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#Subject: fast basename and dirname functions for BASH/SH

 

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#Date: Sat, 27 Dec 1997 21:18:40 +0300

 

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#

 

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#Please send your comments to grg@philol.msu.ru

 

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function basename()

 

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{

 

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  local name="${1##*/}"

 

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  echo "${name%$2}"

 

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}

 

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function dirname()

 

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{

 

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  local dir="${1%${1##*/}}"

 

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  [ "${dir:=./}" != "/" ] && dir="${dir%?}"

 

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  echo "$dir"

 

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}

 

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# Two additional functions:

 

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# 1) namename prints the basename without extension

 

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# 2) ext prints extension of a file, including "."

 

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function namename()

 

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{

 

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  local name=${1##*/}

 

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  local name0="${name%.*}"

 

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  echo "${name0:-$name}"

 

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}

 

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function ext()

 

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{

 

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  local name=${1##*/}

 

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  local name0="${name%.*}"

 

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  local ext=${name0:+${name#$name0}}

 

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  echo "${ext:-.}"

 

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}

 

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