#!/bin/bash #get the month, day, and year of the current date TIME_OF_BACKUP=`date +%m-%d-%y` #create a backup file using the current date in its name DESTINATION=/path/[BACKUP FOLDER]-$TIME_OF_BACKUP.tar.gz #the folder that contains the files that we want to backup TARGET_FOLD...
这是一个例子: [abhishek@itsfoss]:~$ today=$(date +%D) [abhishek@itsfoss]:~$ echo "Today's date is $today" Today's date is 06/19/23 [abhishek@itsfoss]:~$ Command substitution in bash 旧语法使用反引号而不是$()进行命令替换。虽然它可能仍然有效,但你应该使用新的推荐符号。 变量会更改...
#!/usr/bin/env bash script_dir=$(cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd) echo $script_dir 其中第3行代码,无论从何处调用它,都将为你提供脚本的完整目录路径。测试结果如下: 另外,可以根据第一种方法结合使用 realpath 命令,也可获取脚本所在目录的绝对路径: ...
[m\n" exit 1 fi process_cmdline="$1" # 需要监控的进程名,或完整的命令行,也可以为部分命令行 restart_script="$2" # 用来重启进程的脚本,要求具有可执行权限 monitor_interval=2 # 定时检测时间间隔,单位为秒 start_seconds=5 # 被监控进程启动需要花费多少秒 cur_user=`whoami` # 执行本监控脚本的...
date.It displays the current date. touch.It creates a new file. pwd.It displays the present working directory. echo.It prints a string of text or a variable value to the terminal. man.It opens the commands manual. which.It displays the Bash shell path. ...
/bin/bash###输入数字运行相应命令###echo"*cmd menu* 1-date 2-ls 3-who 4-pwd 0-exit "while:do#捕获用户键入值read-p"please input number :"n n1=`echo$n|sed s'/[0-9]//'g`#空输入检测if[ -z"$n"]thencontinuefi#非数字输入检测if[ -n"$n1"]thenexit0fibreakdonecase$nin1)date...
Get the current date using strftimeBash’s printf has a built-in method of getting the date which can be used in place of the date command.CAVEAT: Requires bash 4+Example Function:date() { # Usage: date "format" # See: 'man strftime' for format. printf "%($1)T\\n" "-1" }...
scriptname >>filename 把scriptname的输出(同>)追加到文件filenmae中,如果文件不存在则创建。 [i]<>filename 打开filename这个文件用来读或者写,并且给文件指定i为它的文件描述符(file descriptor),文件不存在就会创建。 34. (command)>,<(command) 进程替换 ...
On Linux, after running the install script, if you get nvm: command not found or see no feedback from your terminal after you type command -v nvm, simply close your current terminal, open a new terminal, and try verifying again. Alternatively, you can run the following commands for the ...
The current version of the script has a problem—It will run from the beginning to the end, errors or not: ./collect_data_from_servers.sh Visiting: macmini2 Visiting: mac-pro-1-1 Visiting: dmaf5 lshw-dump.json100% 54KB48.8MB/s 00:00 ...