#man ls
……
-h, –human-readable
print sizes in human readable format (e.g., 1K 234M 2G)
……
# ls
cuss.war nohup.out
# ls -l
total 30372
-rw-r–r– 1 root root 31051909 May 24 10:07 cuss.war
-rw——- 1 root root 0 Mar 20 13:52 nohup.out
# ls -lh
total 30M
-rw-r–r– 1 root root 30M May 24 10:07 cuss.war
-rw——- 1 root root 0 Mar 20 13:52 nohup.out
# ll -h
total 30M
-rw-r–r– 1 root root 30M May 24 10:07 cuss.war
-rw——- 1 root root 0 Mar 20 13:52 nohup.out
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