tail last 100 lines

This is a creation in Article, where the information may have evolved or changed. Used primarily for the latest line view of Web service logs. Package Main Import"FMT""OS""Bytes") Const (Defaultbufsize = 4096) Func tail (filename string, n int)

When we log or text data on the server side, sometimes there is a need to delete the last few lines of a large file, then how to efficiently implement.Internet browsing finally found the DD command, pro-test as follows, delete a 32GB log file the

The content originates from the people's post and telecommunications press "linux command Application big dictionary"Tell 729 commands, 1935 examplesLearn the Linux system's reference books, desk book, Encounter the command or command options you

File Content Lookup1.CAT Displays the contents of the file starting from the first line2.TAC: Starting from the last line, you can see that the TAC is the write-down form of cat.3.nl: When displayed, by the way output line number;4.more:

1.netstatNETSTAT-TNL | grep 443 (see if Port 443 is occupied)-PNL | grep 443 (also shows the process PID that occupies the native 443 port). -A (all) show all options, default does not show listen correlation -t (TCP) only show TCP-related options

1.netstatNETSTAT-TNL | grep 443 (see if Port 443 is occupied) root user, with Netstat-pnl | grep 443 (also shows the process PID that occupies the native 443 port). -A (all) show all options, default does not show listen related-t (TCP) only show

A bloodcase caused by a lock-free Message Queue: how to be a real programmer? (3) -- location: q3.h and RingBuffer, q3.hringbufferDirectory A bloodcase caused by a lock-free Message Queue: how to be a real programmer? (1) -- location: Cause A

Common troubleshooting command lines in linux 1. view TCP connection status netstat-nat | awk '{print $6}' | sort | uniq-c | sort-rnnetstat-n | awk '/^ tcp/{++ S [$ NF]}; END {for (a in S) print a, S [a]} 'netstat-n | awk'/^ tcp/{++ state [$ NF]};

viewing file paths Ls/path1/path2/filename----------------------Show full path Dirname/path1/path2/filename-------------Show only the folder path of FileName Basename/path1/path2/filename-----------Show Only FileName View text

From: http://bbs.mx3g.com/viewthread.php? Tid = 101578 & extra = Page % 3d2 & SID = kbb756 (1) how to view the model work drawingsBefore we made a variety of marine models, we first came into contact with a model work drawing, which not only tells