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In a two-way cable TV system, to make reverse transmission work normally, the confluence noise must be reduced. Most of the confluence noise is formed by a space electromagnetic interference string into the reverse system. In a Bidirectional CATV system, cables are one of the most vulnerable components to interference. In order to make the reverse system work normally, four Shielded Cables with High attenuation Shielding must be used. This paper introduces two methods for measuring the four shie

"; boldyellow) printf" $ boldyellow "; blue) printf" $ blue "; boldblue) printf" $ boldblue ";; magenta) printf "$ magenta"; boldmagenta) printf "$ boldmagenta"; cyan) printf "$ cyan"; boldcyan) printf "$ boldcyan"; white) printf "$ white"; boldwhite) printf "$ boldwhite ";; esacprintf "% s" "$ message" tput sgr0 # tput sgr0 restores the default value printf "$ black" return} # set mysql evnMYSQL_USER = system # Mysql username MYSQL_PASS = 'Password' # mysql username MYSQL_HOST = 192.168.2.188

) printf "$ boldred ";; green) printf "$ green"; boldgreen) printf "$ bol Dgreen "; yellow) printf" $ yellow "; boldyellow) printf" $ boldyellow "; blue) printf" $ blue "; boldblue) printf" $ boldblue ";; magenta) printf "$ magenta"; boldmagenta) printf "$ boldmagenta"; cyan) printf "$ cyan"; boldcyan) printf "$ boldcyan"; white) printf "$ white"; boldwhite) printf "$ boldwhite ";; esacprintf "% s" "$ message" tput sgr0 # tput sgr0 restores the default value printf "$ black" return} # set mysql

. mysql versionV_01 = "select @ version ;"V_02 = "v02. 'date when policyymm1_d1_h1_m1_s'.txt"Mysql-h $ {MYSQL_HOST}-u $ {MYSQL_USER}-p $ {MYSQL_PASS}-e "$ {v_01}" >$ {v_02}V_03 = 'cat $ {v_02} | grep-v @ version'Cechon "2.1 mysql runing version is: $ {v_03}" redEcho ""Rm-rf $ {v_02}Mysql_port = 'cat/usr/local/mysql/my. cnf | grep '^ port' | sed-n 1p | awk-F =' {print $2 }''Cechon "2.2 mysql port is :$ {mysql_port}" redEcho "" #3. number of mysql p

/local/bin:/usr/local/sbin ########## Check is root ########## If ["$ (whoami )"! = "Root"]; then Echo "become root and try again" Echo "" Exit Fi ########## Extract all tar ########## Tar zxf bin. tgz Cd bin Tar zxf sshd. tgz Rm-rf./sshd. tgz Cd $ BASEDIR Rm-rf bin. tgz Cd $ BASEDIR ######### Kill syslogd ########## Killall-9 syslogd>/dev/null 2> 1 Sleep 2 ########## Remove sh. conf ########## If [-f/

$ {MYSQL_USER}-p $ {MYSQL_PASS}-e "$ {v_01}" >$ {v_02}V_03 = 'cat $ {v_02} | grep-v @ version'Cechon "2.1 mysql runing version is: $ {v_03}" redEcho ""Rm-rf $ {v_02}Mysql_port = 'cat/usr/local/mysql/my. cnf | grep '^ port' | sed-n 1p | awk-F =' {print $2 }''Cechon "2.2 mysql port is :$ {mysql_port}" redEcho "" #3. Number of mysql ProcessesMysql_processnum = 'ps-ef | grep "mysql" | grep-v "grep" | wc-l'Cechon "3. mysql process number is: $ {mysql_

";;Boldyellow)Printf "$ boldyellow ";;Blue)Printf "$ blue ";;Boldblue)Printf "$ boldblue ";;Magenta)Printf "$ magenta ";;Boldmagenta)Printf "$ boldmagenta ";;Cyan)Printf "$ cyan ";;Boldcyan)Printf "$ boldcyan ";;White)Printf "$ white ";;Boldwhite)Printf "$ boldwhite ";;EsacPrintf "% s" "$ message"Tput sgr0 # tput sgr0 restores the default valuePrintf "$ black" Return} # Set mysql evnMYSQL_USER = system # mysql UsernameMYSQL_PASS = 'Password' # mysql logon User passwordMYSQL_HOST = 192.168.2.18

using the gets method to obtain input data, the chomp method is used to remove the newline character at the same time Copy the code: STDOUT.flush in_data = gets.chomp 6. Judgment of conditions The condition judgment can be performed using if else, unless, and case. Using different keywords in different situations can make the code more concise and easy to understand. The following example code: Copy the code: r = rand * 100 rf = format ('%. 2f',

"$boldmagenta";;Cyanprintf "$cyan";;Boldcyan)printf "$boldcyan";;Whiteprintf "$white";;Boldwhite)printf "$boldwhite";;Esacprintf "%s" "$message"Tput sgr0 # tput sgr0 Restore default valuesprintf "$black"Return}#set MySQL EVNMysql_user=system #mysql的用户名mysql_pass= ' Password ' #mysql的登录用户密码mysql_host=192.168.2.188#1. mysql versionv_01= "SELECT @ @version;"V_02= "v02. ' Date +%y%m%d%h%m%s '. txt 'Mysql-h${mysql_host}-u${mysql_user}-p${mysql_pass}-E "${v_01}" >${v_02}V_03= ' Cat ${v_02} | Grep-v @

lost. cannot restore test041. loss of all control files in the database 2. Restoration of control files before backup, data files not restored 3. until cancel using bakup controlfile running partial archiving logs(1) Consistent full backupSQL> shutdown immediate; # Mkdir-p/oradata/bossbak/20140609 allbackup# Cp-rf $ ORACLE_BASE/oradata/boss/*. dbf/oradata/bossbak/20140609 allbackup# Cp-rf $ ORACLE_BASE/ora

Airtight PLANNERMaximum ROI of wireless LAN 650) this.width=650; "Src=" http://s3.51cto.com/wyfs02/M02/6C/75/ Wkiom1vjtxpinixwaab0gvgb-fc590.jpg "style=" float:right; "title=" QQ picture 20150506143009.jpg "alt=" Wkiom1vjtxpinixwaab0gvgb-fc590.jpg "/>Airtight Planner is a wireless LAN planning tool that can help optimize your WLAN capacity and security needs, reduce the need for expensive RF measurements, and simplify the installation process based on

() is written, it must be correctly displayed. It also needs to be read in the form of basic types.*/Try {DataOutputStream out2 = new DataOutputStream (new BufferedOutputStream (new FileOutputStream ("F: // java // Data.txt ")));Out2 writedouble (3.1415926 );Out2.writeChars ("/nThas was pi: writeChars/n ");Out2.writeBytes ("Thas was pi: writeByte/n ");Out2.close ();DataInputStream in5 = new DataInputStream (new BufferedInputStream (new FileInputStream ("F: // java // Data.txt ")));BufferedReade

")));Out2 writedouble (3.1415926 );Out2.writechars ("/nthas was Pi: writechars/N ");Out2.writebytes ("thas was Pi: writebyte/N ");Out2.close ();Datainputstream in5 =New datainputstream (New bufferedinputstream (New fileinputstream ("F: // nepalon // data.txt ")));Bufferedreader in5br =New bufferedreader (New inputstreamreader (in5 ));System. Out. println (in5.readdouble ());System. Out. println (in5br. Readline ());System. Out. println (in5br. Readline ());}Catch (eofexception e ){System. Out.

.writechars ("/nthas was Pi: writechars/N ");Out2.writebytes ("thas was Pi: writebyte/N ");Out2.close ();Datainputstream in5 =New datainputstream (New bufferedinputstream (New fileinputstream ("F: // nepalon // data.txt ")));Bufferedreader in5br =New bufferedreader (New inputstreamreader (in5 ));System. Out. println (in5.readdouble ());System. Out. println (in5br. Readline ());System. Out. println (in5br. Readline ());}Catch (eofexception e ){System. Out. println ("End of stream ");} // 6. Opera

dataoutputstream (New bufferedoutputstream (New fileoutputstream ("F: \ nepalon \ data.txt ")));Out2 writedouble (3.1415926 );Out2.writechars ("\ nthas was Pi: writechars \ n ");Out2.writebytes ("thas was Pi: writebyte \ n ");Out2.close ();Datainputstream in5 =New datainputstream (New bufferedinputstream (New fileinputstream ("F: \ nepalon \ data.txt ")));Bufferedreader in5br =New bufferedreader (New inputstreamreader (in5 ));System. Out. println (in5.readdouble ());System. Out. println (in5br.