標籤:資料庫#!/bin/bash#back_mysql by 2016-11-14bak_dir=/data/backup_db/`date +%Y%m%d`mysqldb=mysqlmysqluser=*****mysqlpw=******if [ $UID -ne 0 ];then echo "must to be use root for exec shell" exitfi#判斷是否存在檔案,\
標籤:1 Invoke Mdoelsim In order to open Modelsim automatically, it is better to use a shell script to invoke modelsim. 1 #!/bin/bash 2 # ---------------------------------------------------------------------------- 3 # invoke ModelSim 4 # ----------
標籤:Write shell script: 1) Editor like vi or mcedi 2) Set execute permission for your script chmod permission your-script-name$ chmod +x your-script-name$ chmod 755 your-script-name This will set read write execute(7)
標籤:spark scala 下載了spark 1.4,運行spark-shell時遇到以下錯誤: java.net.UnknownHostException: UKON-M-Q0EP: UKON-M-Q0EP: nodename nor servname provided, or not known at java.net.InetAddress.getLocalHost(InetAddress.java:147
linux shell 逐行讀取檔案行, 讀取檔案行for 命令替換代碼塊重新導向while 管道符代碼塊重新導向forIFS=$'\n'for line in `ls -l`do (( count++ ))doneecho $count注意: for讀取時,自動按空格作為間隔符。因此需要將IFS定義為按分行符號分隔ls -l > forout.logmaxlength=$(wc -l < forout.log)for i in `seq