Counting the number of lines between same repeating pattern

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0














I have refer this Grep the lines between the occurrence of the same pattern , I don't want to split into file; instead, I want to store it into an array. File count.txt contain:



0 
1
2
3
0
1
2
0
1


My script code is:



total=$(sed -n $= count.txt)
c=0
k=0
lineno=0
var="0"
for i in $(cat count.txt);
do
if ["$i" -eq "$var"]
then
arr[$((k++))]=c
c=0
c=$((c+1))

else
c=$((c+1))
if ["$lineno" -eq "$total"]
then
arr[$((k++))]=c
fi
fi
lineno=$((lineno+1))
done


The above logic is tested on C++ launguage which on printing the array shows : 0 4 3 2
Firstly, my script is showing error like line 9: [0: command not found.
Secondly, is there any efficient method to store the repeated count in array, like above output?










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  • 1




    The command not found error is because your [ test lacks the required whitespace: [ "$i" -eq "$var" ]
    – steeldriver
    Dec 27 '18 at 13:06










  • @msp9011 I want the output: 4 3 2 in array
    – Arya
    Dec 27 '18 at 13:17










  • There is not output instruction; in addition =c is putting the letter c in the variable, may be you want =$c and the first test is right the first time as 0=0 this explains the potential output 0 in sequence instead of 4 3 2.
    – matzeri
    Dec 27 '18 at 14:22
















0














I have refer this Grep the lines between the occurrence of the same pattern , I don't want to split into file; instead, I want to store it into an array. File count.txt contain:



0 
1
2
3
0
1
2
0
1


My script code is:



total=$(sed -n $= count.txt)
c=0
k=0
lineno=0
var="0"
for i in $(cat count.txt);
do
if ["$i" -eq "$var"]
then
arr[$((k++))]=c
c=0
c=$((c+1))

else
c=$((c+1))
if ["$lineno" -eq "$total"]
then
arr[$((k++))]=c
fi
fi
lineno=$((lineno+1))
done


The above logic is tested on C++ launguage which on printing the array shows : 0 4 3 2
Firstly, my script is showing error like line 9: [0: command not found.
Secondly, is there any efficient method to store the repeated count in array, like above output?










share|improve this question



















  • 1




    The command not found error is because your [ test lacks the required whitespace: [ "$i" -eq "$var" ]
    – steeldriver
    Dec 27 '18 at 13:06










  • @msp9011 I want the output: 4 3 2 in array
    – Arya
    Dec 27 '18 at 13:17










  • There is not output instruction; in addition =c is putting the letter c in the variable, may be you want =$c and the first test is right the first time as 0=0 this explains the potential output 0 in sequence instead of 4 3 2.
    – matzeri
    Dec 27 '18 at 14:22














0












0








0







I have refer this Grep the lines between the occurrence of the same pattern , I don't want to split into file; instead, I want to store it into an array. File count.txt contain:



0 
1
2
3
0
1
2
0
1


My script code is:



total=$(sed -n $= count.txt)
c=0
k=0
lineno=0
var="0"
for i in $(cat count.txt);
do
if ["$i" -eq "$var"]
then
arr[$((k++))]=c
c=0
c=$((c+1))

else
c=$((c+1))
if ["$lineno" -eq "$total"]
then
arr[$((k++))]=c
fi
fi
lineno=$((lineno+1))
done


The above logic is tested on C++ launguage which on printing the array shows : 0 4 3 2
Firstly, my script is showing error like line 9: [0: command not found.
Secondly, is there any efficient method to store the repeated count in array, like above output?










share|improve this question















I have refer this Grep the lines between the occurrence of the same pattern , I don't want to split into file; instead, I want to store it into an array. File count.txt contain:



0 
1
2
3
0
1
2
0
1


My script code is:



total=$(sed -n $= count.txt)
c=0
k=0
lineno=0
var="0"
for i in $(cat count.txt);
do
if ["$i" -eq "$var"]
then
arr[$((k++))]=c
c=0
c=$((c+1))

else
c=$((c+1))
if ["$lineno" -eq "$total"]
then
arr[$((k++))]=c
fi
fi
lineno=$((lineno+1))
done


The above logic is tested on C++ launguage which on printing the array shows : 0 4 3 2
Firstly, my script is showing error like line 9: [0: command not found.
Secondly, is there any efficient method to store the repeated count in array, like above output?







bash awk sed






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edited 2 days ago









Rui F Ribeiro

39.3k1479131




39.3k1479131










asked Dec 27 '18 at 13:01









AryaArya

1




1







  • 1




    The command not found error is because your [ test lacks the required whitespace: [ "$i" -eq "$var" ]
    – steeldriver
    Dec 27 '18 at 13:06










  • @msp9011 I want the output: 4 3 2 in array
    – Arya
    Dec 27 '18 at 13:17










  • There is not output instruction; in addition =c is putting the letter c in the variable, may be you want =$c and the first test is right the first time as 0=0 this explains the potential output 0 in sequence instead of 4 3 2.
    – matzeri
    Dec 27 '18 at 14:22













  • 1




    The command not found error is because your [ test lacks the required whitespace: [ "$i" -eq "$var" ]
    – steeldriver
    Dec 27 '18 at 13:06










  • @msp9011 I want the output: 4 3 2 in array
    – Arya
    Dec 27 '18 at 13:17










  • There is not output instruction; in addition =c is putting the letter c in the variable, may be you want =$c and the first test is right the first time as 0=0 this explains the potential output 0 in sequence instead of 4 3 2.
    – matzeri
    Dec 27 '18 at 14:22








1




1




The command not found error is because your [ test lacks the required whitespace: [ "$i" -eq "$var" ]
– steeldriver
Dec 27 '18 at 13:06




The command not found error is because your [ test lacks the required whitespace: [ "$i" -eq "$var" ]
– steeldriver
Dec 27 '18 at 13:06












@msp9011 I want the output: 4 3 2 in array
– Arya
Dec 27 '18 at 13:17




@msp9011 I want the output: 4 3 2 in array
– Arya
Dec 27 '18 at 13:17












There is not output instruction; in addition =c is putting the letter c in the variable, may be you want =$c and the first test is right the first time as 0=0 this explains the potential output 0 in sequence instead of 4 3 2.
– matzeri
Dec 27 '18 at 14:22





There is not output instruction; in addition =c is putting the letter c in the variable, may be you want =$c and the first test is right the first time as 0=0 this explains the potential output 0 in sequence instead of 4 3 2.
– matzeri
Dec 27 '18 at 14:22











2 Answers
2






active

oldest

votes


















1














An awk one-liner:



awk -v patt="0" -v prev=1 '
$0 ~ patt print NR - prev; prev = NR
END print NR + 1 - prev
' file





share|improve this answer




























    0














    Try this,



    LINES=(`cat count.txt `)
    arr=()
    arrIndex=0
    a=`echo $LINES`
    for i in "$!LINES[@]"; do
    if [[ "$LINES[$i]" = "$a" ]]; then
    arr[arrIndex]=`echo "$i"`
    arrIndex=$((arrIndex+1))
    fi
    done
    arr[arrIndex]=`echo $#LINES[@]`
    arrOut=()
    for ((i=1; i<"$#arr[@]"; ++i))
    do
    j=`expr $i - 1 `
    arrOut[$i]=`echo "$arr[$i] $arr[$j]" | awk 'a=$1-$2;print a'`
    done

    echo $arrOut[@]





    share|improve this answer




















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      2 Answers
      2






      active

      oldest

      votes








      2 Answers
      2






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      1














      An awk one-liner:



      awk -v patt="0" -v prev=1 '
      $0 ~ patt print NR - prev; prev = NR
      END print NR + 1 - prev
      ' file





      share|improve this answer

























        1














        An awk one-liner:



        awk -v patt="0" -v prev=1 '
        $0 ~ patt print NR - prev; prev = NR
        END print NR + 1 - prev
        ' file





        share|improve this answer























          1












          1








          1






          An awk one-liner:



          awk -v patt="0" -v prev=1 '
          $0 ~ patt print NR - prev; prev = NR
          END print NR + 1 - prev
          ' file





          share|improve this answer












          An awk one-liner:



          awk -v patt="0" -v prev=1 '
          $0 ~ patt print NR - prev; prev = NR
          END print NR + 1 - prev
          ' file






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Dec 27 '18 at 15:07









          glenn jackmanglenn jackman

          50.4k570107




          50.4k570107























              0














              Try this,



              LINES=(`cat count.txt `)
              arr=()
              arrIndex=0
              a=`echo $LINES`
              for i in "$!LINES[@]"; do
              if [[ "$LINES[$i]" = "$a" ]]; then
              arr[arrIndex]=`echo "$i"`
              arrIndex=$((arrIndex+1))
              fi
              done
              arr[arrIndex]=`echo $#LINES[@]`
              arrOut=()
              for ((i=1; i<"$#arr[@]"; ++i))
              do
              j=`expr $i - 1 `
              arrOut[$i]=`echo "$arr[$i] $arr[$j]" | awk 'a=$1-$2;print a'`
              done

              echo $arrOut[@]





              share|improve this answer

























                0














                Try this,



                LINES=(`cat count.txt `)
                arr=()
                arrIndex=0
                a=`echo $LINES`
                for i in "$!LINES[@]"; do
                if [[ "$LINES[$i]" = "$a" ]]; then
                arr[arrIndex]=`echo "$i"`
                arrIndex=$((arrIndex+1))
                fi
                done
                arr[arrIndex]=`echo $#LINES[@]`
                arrOut=()
                for ((i=1; i<"$#arr[@]"; ++i))
                do
                j=`expr $i - 1 `
                arrOut[$i]=`echo "$arr[$i] $arr[$j]" | awk 'a=$1-$2;print a'`
                done

                echo $arrOut[@]





                share|improve this answer























                  0












                  0








                  0






                  Try this,



                  LINES=(`cat count.txt `)
                  arr=()
                  arrIndex=0
                  a=`echo $LINES`
                  for i in "$!LINES[@]"; do
                  if [[ "$LINES[$i]" = "$a" ]]; then
                  arr[arrIndex]=`echo "$i"`
                  arrIndex=$((arrIndex+1))
                  fi
                  done
                  arr[arrIndex]=`echo $#LINES[@]`
                  arrOut=()
                  for ((i=1; i<"$#arr[@]"; ++i))
                  do
                  j=`expr $i - 1 `
                  arrOut[$i]=`echo "$arr[$i] $arr[$j]" | awk 'a=$1-$2;print a'`
                  done

                  echo $arrOut[@]





                  share|improve this answer












                  Try this,



                  LINES=(`cat count.txt `)
                  arr=()
                  arrIndex=0
                  a=`echo $LINES`
                  for i in "$!LINES[@]"; do
                  if [[ "$LINES[$i]" = "$a" ]]; then
                  arr[arrIndex]=`echo "$i"`
                  arrIndex=$((arrIndex+1))
                  fi
                  done
                  arr[arrIndex]=`echo $#LINES[@]`
                  arrOut=()
                  for ((i=1; i<"$#arr[@]"; ++i))
                  do
                  j=`expr $i - 1 `
                  arrOut[$i]=`echo "$arr[$i] $arr[$j]" | awk 'a=$1-$2;print a'`
                  done

                  echo $arrOut[@]






                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered Dec 27 '18 at 14:13









                  msp9011msp9011

                  3,82843863




                  3,82843863



























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