1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
| df[选项][文件名] -h:--human-readable
du[选项][文件名] du --max-depth=0 /
cat >file1<file2 ./main text1.txt >text5.txt 2>&1
head -n 10 main.cc
tail -n 10 main.cc
iconv -f utf-8 -t gb2312 hanzi>hanzi1
grep
cat a.txt|sed 's/aa/bb'>b.txt
|