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Find out wich Linux distro are you using

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  1. #! /bin/bash
  2. # return an awkable string consisting of
  3. #    unix OS type, or
  4. #    Linux dist, or
  5. #    a long guess (based on /proc), or
  6. #    no clue
  7.  
  8. giveUp () {
  9.    echo "Unknown"
  10.    exit 0
  11. }
  12.  
  13. # keep this easily awkable, prepending an initial clue
  14. versionGuess () {
  15.    if [ -e /proc/version ]; then
  16.       echo -n "Unsure "
  17.       cat /proc/version
  18.       exit 0
  19.    fi
  20.    return 1
  21. }
  22.  
  23. # if we have ignition, print and exit
  24. gotDist () {
  25.    [ -n "$1" ] && echo "$1" && exit 0
  26. }
  27.  
  28. # we are only interested in a single word "dist" here
  29. # various malformations can occur; admin will have to code appropately based on output
  30. linuxRelease () {
  31.    if [ -r /etc/lsb-release ]; then
  32.       dist=$(grep 'DISTRIB_ID' /etc/lsb-release | sed 's/DISTRIB_ID=//' | head -1)
  33.       gotDist "$dist"
  34.    fi
  35.  
  36.    dist=$(find /etc/ -maxdepth 1 -name '*release' 2> /dev/null | sed 's/\/etc\///' | sed 's/-release//' | head -1)
  37.    gotDist "$dist"
  38.  
  39.    dist=$(find /etc/ -maxdepth 1 -name '*version' 2> /dev/null | sed 's/\/etc\///' | sed 's/-version//' | head -1)
  40.    gotDist "$dist"
  41.  
  42.    return 1
  43. }
  44.  
  45. # start with uname and branch the decision from there
  46. dist=$(uname -s 2> /dev/null)
  47. if [ "$dist" = "Linux" ]; then
  48.    linuxRelease
  49.    versionGuess
  50.    giveUp
  51. elif [ -n "$dist" ]; then
  52.    echo "$dist"
  53.    exit 0
  54. else
  55.    versionGuess
  56.    giveUp
  57. fi
  58.  
  59. # we shouldn't get here
  60. giveUp
  61. # done

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