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Posted By

ksaver on 08/22/10

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Last Edited at 08/22/10 04:21pm

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progress_bar.sh

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  1. #  snippet:   progress_bar.sh
  2. #  version:   0.02
  3. #  author:    ksaver (at identi.ca)
  4. #  license:   http://creativecommons.org/licenses/BSD/
  5. #  sets:      progress_bar function
  6. #  arguments: progress_bar function: optional arguments "Text" and width.
  7. #             "Text": Any informative text string.
  8. #             Width:  An integer number, is the max width for the progress bar.
  9. #  usage:     Use into a script:
  10. #             source progress_bar.sh
  11. #             a) progress_bar "Counting:" 25 <<< $PERCENT
  12. #             b) for i in {1..100}; do echo $i; sleep 1; done |progress_bar "" 20
  13. #  output:    Counting: [ ============> ] 50%          
  14.  
  15. function progress_bar()
  16. {
  17.     while read PERCENT
  18.     do
  19.         COUNT=0
  20.         FOO='>'
  21.         BAR=''
  22.         CHAR='='                 # Change by "#", "|" or any character.
  23.         TEXT=${1:-"Progress:"}   # Sets default value to var $TEXT
  24.         WIDTH=${2:-40}           # Sets default value to var $WIDTH
  25.  
  26.         PROGRESS=$(($PERCENT*$WIDTH/100))
  27.  
  28.         while [ $COUNT -lt $(($PROGRESS+1)) ]
  29.         do  
  30.             printf "\r\t$TEXT [ %s%s ] $PERCENT%% " ${BAR} ${FOO}
  31.  
  32.             BAR="${BAR}$CHAR"
  33.             COUNT=$(($COUNT+1))
  34.         done
  35.     done
  36.     echo " Done."
  37. }

URL: http://identi.ca/ksaver

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