问题
I know ls -t will list all files by modified time. But how can I limit these results to only the last n files?
回答1:
Try using head or tail. If you want the 5 most-recently modified files:
ls -1t | head -5
The -1 (that's a one) says one file per line and the head says take the first 5 entries.
If you want the last 5 try
ls -1t | tail -5
回答2:
Use tail command:
ls -t | tail -n 5
回答3:
The accepted answer lists only the filenames, but to get the top 5 files one can also use:
ls -lht | head -6
where:
-l outputs in a list format
-h makes output human readable (i.e. file sizes appear in kb, mb, etc.)
-t sorts output by placing most recently modified file first
head -6 will show 5 files because ls prints the block size in the first line of output.
I think this is a slightly more elegant and possibly more useful approach.
Example output:
total 26960312
-rw-r--r--@ 1 user staff 1.2K 11 Jan 11:22 phone2.7.py
-rw-r--r--@ 1 user staff 2.7M 10 Jan 15:26 03-cookies-1.pdf
-rw-r--r--@ 1 user staff 9.2M 9 Jan 16:21 Wk1_sem.pdf
-rw-r--r--@ 1 user staff 502K 8 Jan 10:20 lab-01.pdf
-rw-rw-rw-@ 1 user staff 2.0M 5 Jan 22:06 0410-1.wmv
回答4:
ls -t list files by creation time not last modified time. Use ls -ltc if you want to list files by last modified time from last to first(top to bottom). Thus to list the last n: ls -ltc | head ${n}
来源：https://stackoverflow.com/questions/15691359/how-can-i-list-ls-the-5-last-modified-files-in-a-directory