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あいりまるこ
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2 11 (6/19) 6 (18:10-19:40) λ13 UNIX : 2 / 26

3 UNIX UNIX sort, head, tail, cat, cut diff, tee, grep, uniq, wc join, find, sed, awk, screen 3 / 26

4 sort sort : $ sort [options] [FILE...] options ( ) -n : -r : -k POS1[,POS2] : (1 ) -t SEP : -m : -T DIR : : file 3 /usr/tmp $ sort -nr -k3,3 -T/usr/tmp file 4 / 26

5 head head : 10 : head [-n lines -c bytes] [file...] $ sort -n -k3,3 head -n 10 5 / 26

6 tail tail : 10 tail [-F -f -r] [-q] [-b number -c number -n number] [file...] : -f : monitor a log file: $ tail -f /var/log/httpd-access.log 6 / 26

7 cat cat : ( ) cat [-benstuv] [file...] : $ cat file1 file2 > file3 7 / 26

8 cut cut : cut -b list [-n] [file...], cut -c list [file...], cut -f list [-s] [-d delim] [file...] : -b BYTE-LIST : -c CHAR-LIST : -f FIELD-LIST : -d DELIM : extract users login names and shells from the system passwd file: $ cut -d : -f 1,7 /etc/passwd show the names and login times of the currently logged in users: $ who cut -c 1-16, / 26

9 diff diff : diff [OPTION]... FILES -u : unified diff format : $ diff -u file1 file2 9 / 26

10 tee tee : tee [-ai] [file...] : $ ls tee output.txt 10 / 26

11 grep grep : PATTERN grep [options] PATTERN [FILE...] grep [options] [-e PATTERN -f FILE] [FILE...] : search lines including abc : $ grep abc file count the number of lines starting with abc : $ grep -c ^abc file 11 / 26

12 uniq uniq : uniq [-c -d -u] [-i] [-f num] [-s chars] [input_file [output_file]] : -d : $ cat file1 file2 sort uniq > file3 $ sort file uniq -d 12 / 26

13 wc wc : wc [-Lclmw] [file...] 13 / 26

14 join join : join [-a file_number -v file_number] [-e string] [-o list] [-t char] [-1 field] [-2 field] file1 file2 : $ cat file orange 1002 apple 1003 grape $ cat file $ join file1 file orange apple 250 $ join -a1 -a2 -e NULL -o 0,1.2,2.2 file1 file orange apple grape NULL 1004 NULL / 26

15 find find : find [-H -L -P] [-EXdsx] [-f pathname] pathname... expression find [-H -L -P] [-EXdsx] -f pathname [pathname...] expression : print files with ".rej" suffix: $ find. -name "*.rej" -print print ".o" files older than 1 year $ find. -name "*.o" -mtime print remove empty files: $ find. -empty -exec rm {} \; 15 / 26

16 sed (streaming editor) sed : sed [-Ealn] command [file...] sed [-Ealn] [-e command] [-f command_file] [-I extension] [-i extension] [file...] : -e command : -f command file : replace "old" by "new": $ echo "old songs in old books" sed s/old/new/g print line 3-5: $ sed -n 3,5p file 16 / 26

17 awk awk : 1 awk [ -F fs ] [ -v var=value ] [ prog -f progfile ] [ file... ] : swap column1 and colimn2 and add sum to column3: $ echo "12 56" awk {print $2,$1,$1+$2} extract the capacity in percent from the df command: $ df awk match($0, /[0-9]+%/) {print substr($0, RSTART, RLENGTH - 1)} 17 / 26

18 screen screen : ( ) screen : screen ctrl-a d : detach screen -r : 18 / 26

19 N 19 / 26

20 : : ( ) 20 / 26

21 tcpdump: wireshark: GUI LAN IDS 21 / 26

22 wireshark : UNIX,Windows,Mac : pcap, pcap-ng, etc. ( ) 22 / 26

23 wireshark main window menu: main toolbar: filter toolbar: packet list pane: packet details pane: packet bytes pane: 16 statusbar: 23 / 26

24 wireshark wireshark user s guide 2 Wireshark wireshark wiki sample captures capture files used in Practical Packet Analysis, 2nd Edition packet traces from WIDE backbone 24 / 26

25 : wireshark 25 / 26

26 [1] Ruby official site. [2] gnuplot official site. [3] Mark Crovella and Balachander Krishnamurthy. Internet measurement: infrastructure, traffic, and applications. Wiley, [4] Pang-Ning Tan, Michael Steinbach and Vipin Kumar. Introduction to Data Mining. Addison Wesley, [5] Raj Jain. The art of computer systems performance analysis. Wiley, [6] Toby Segaran. ( ) [7] Chris Sanders. ( ). 2 Wireshark [8] [9],.., [10],.., / 26

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¥¤¥ó¥¿¡¼¥Í¥Ã¥È·×Â¬¤È¥Ç¡¼¥¿²òÀÏ Âè1²ó 1 2013 4 10 lumeta internet mapping http://www.lumeta.com http://www.cheswick.com/ches/map/ 2 / 39 ( ) 3 / 39 (Internet measurement and data analysis) : TA: SA: