随笔-shell-将换行符换成空格/换行符

将换行符换成换行符

cat country.txt | sed ':label;N;s/\n/ /;b label'

cat country.txt | tr "\n" " "

将换行符换成换行符

cat country.txt | sed 's/\t/\n/g'

tr '\t' '\n' < input.txt > output.txt

awk 'BEGIN { OFS = "\n" } { $1=$1; print }' input.txt > output.txt