BASH:Find character output times

grep -o 1111 input.txt

vim
:%s/1111/&/gn
:m,ns/字符串/&/gn

 

sed -n '/111/p' input.txt
cut -d' ' -f1 input.txt|sort -rn|uniq -c |sort -rn

awk -v RS="@#$j" '{print gsub(/1111/,"&")}' input.txt
awk '{s+=gsub(/1111/,"&")}END{print s}' input.txt