$ cachestat 1 3 TOTAL MISSES HITS DIRTIES BUFFERS_MB CACHED_MB 2 0 2 1 17 279 2 0 2 1 17 279 2 0 2 1 17 279 # READ_HIT 和 WRITE_HIT ,分别表示读和写的缓存命中率 $ cachetop 11:58:50 Buffers MB: 258 / Cached MB: 347 / Sort
11:58:50 Buffers MB: 258 / Cached MB: 347 / Sort: HITS / Order: ascending PID UID CMD HITS MISSES DIRTIES READ_HIT% WRITE_HIT% 13029 root python 1 0 0 100.0% 0.0% READ_HIT 和 WRITE_HIT ,分别表示读和写的缓存命中率。除此之外,还可以使用pcstat来查看文件的缓存情况,如查看/bin/ls $...
Another way to supply input to thesortcommand is to use the pipe (|) operator. Piping intosortallows it to arrange another command's output and, optionally, save the results into a file. The following example shows how to pipe thelscommand output intosortand arrange the contents by file ...
11:58:50 Buffers MB: 258 / Cached MB: 347 / Sort: HITS / Order: ascending PID UID CMD HITS MISSES DIRTIES READ_HIT% WRITE_HIT% 13029 root python 1 0 0 100.0% 0.0% READ_HIT 和 WRITE_HIT ,分别表示读和写的缓存命中率。除此之外,还可以使用pcstat来查看文件的缓存情况,如查看/bin/ls $...
find /proc/*/fd -links 0 -type f -size +2000 -ls /* Find large files held open by a process */ ls -lR | grep /* Fast alternative to find */ Security echo 'Please go away' > /etc/nologin /* Stops users logging in */ find / -perm...
sort("author") 统计数量 posts.count() 加索引 from pymongo import ASCENDING, DESCENDING posts.create_index([("date", DESCENDING), ("author", ASCENDING)]) 查看查询语句的性能 posts.find({"date": {"$lt": "d"}}).sort("author").explain()["cursor"] posts.find({"date": {"$lt": "d...
-type f -ls:uses a long listing format oflscommand for each file. The size of a file is shown in the seventh column. And for thesortcommand, we used: -n -k7:sorts files in ascending order according to their size. In this example, we use the seventh column as a sort key ...
9. sort command examples Sort a file in ascending order $ sort names.txt Sort a file in descending order $ sort -r names.txt Sort passwd file by 3rd field. $ sort -t: -k 3n /etc/passwd | more 10. export command examples To view oracle related environment variables. $ export | gre...
9. Sort Files by File Size The following command combines the ‘ls‘ and ‘sort‘ commands to list the contents of the user’s home directory in a long listing format and then it pipes the directory listing to'sort -nk5', which sorts the list based on the values in the fifth column...
This is because the sort command, by default, sorts ascendingly. Therefore, the largest file is in the last row of the output. 4.2. Using find With ls For Linux distributions that don’t have the GNU find command, the -printf option won’t be available. Therefore, instead of the -...