count number of occurence
# It can be done in two ways
# 1) Have "grep" read on from the standard input using a pipe
# and search the input string. Then pipe the result to "wc" to count
# the number of occurences
$ line="This is where we select from a table."
# substr="select"
$ echo "$line" | grep "$substr" | wc -l
# 2) or pass a string to "grep" and search the string for a substring
# pass the result to "wc" to count the number of occurence
$ grep "$substr" <<< "$line" | wc -lcount occurance of elements
from collections import Counter
data= [96,95,96,87,87,88,56,57,57]
occurences = Counter(data)
print(occurences)
---------------
Counter({96: 2, 87: 2, 57: 2, 95: 1, 88: 1, 56: 1})Copyright © 2021 Codeinu
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