Linux常用批处理命令

xargs

ls | xargs -t -i mv {} {}.txt

awk

awk '{print $4}' log.txt | sort -u

count file

count number of files in each directory:
find . -type d -print0 | while read -d '' -r dir; do
files=("$dir"/*)
printf "%5d files in directory %s\n" "${#files[@]}" "$dir"
done

find . -type d -print0 | while read -d '' -r dir; do
files=("$dir"/*)
printf "%5d files in directory %s\n" "${#files[@]}" "$dir"
done > dataset_size.log