答:使用'-x'参数(sh -x myscript.sh)可以调试shell脚本。另一个种方法是使用‘-nv’参数(sh -nv myscript.sh)。 Q:16 shell脚本如何比较字符串? 答:test命令可以用来比较字符串。测试命令会通过比较字符串中的每一个字符来比较。 Q:17 Bourne shell(bash) 中有哪些特殊的变量 ? 答:下面的表列出了Bourn...
Shell scripting, in Linux or Unix, is programming with the shell using which you can automate your tasks. A shell is the command interpreter which is the interface between the User and the kernel. A shell script allows you to submit a set of commands to the kernel in a batch. In additi...
Linux管理员面试题Linux admin interview questions 1. How do you take a single line of input from the user in a shell script?2. Write a script to convert all DOS style backslashes to UNIX style slashes in a list of files.3. Write a regular expression (or sed script) to replace all ...
要在Linux 中设置内核参数,编辑文件“ /etc/sysctl.conf”保存文件,并运行“ sysctl -p”命令,此命令将永久进行更改不重启机器。 (25) 如何逐行调试 shell 脚本 ? 要调试 shell 脚本,请在 bash 命令中使用 -x 选项,后跟脚本名称。 $ bash -x script-name.sh (26) Puppet 中的 manifests 是什么 ? Puppe...
Shell:这是一个我们可以在里面运行命令、Shell 脚本和程序的环境。它是用户和内核之间的一个接口,向用户隐藏了内核的所有复杂功能。它被用来执行命令。 问题2:LILO 是什么? LILO 是指 Linux Loader,它用于 Linux 操作系统的启动加载器。大多数 Linux 操作系统都是利用 LILO 来启动操作系统进入主内存并开始运行。
6.shell下32位随机密码生成 cat /dev/urandom | head -1 | md5sum | head -c 32 >> /pass 将生成的32位随机数 保存到/pass文件里了 7.统计出apache的access.log中访问量最多的5个IP cat access_log | awk '{print $1}' | sort | uniq -c | sort -n -r | head -5 8.如何查看二进制...
53. Can you name some shell scripting languages? sh, bash, csh, and tcsh 54. How would you write a script to delete all files in the current directory that contain the text “find” in the file name. for i in *find*; do rm $i; done; ...
1Linux 管理员面试题 Linux adminin terview questi ons1. How do you take a sin gle line of in put from the user in ashell script
Shell Script to Monitor Network, Disk Usage, Uptime, Load Average and RAM –New Update Section 8: Linux Archiving/Compression, Backup/Sync and Recovery Archiving/Compression Files How to Archive/Compress Linux Files and Directories using ‘tar’ Command How to Open, Extract and Create RAR Files ...
Code in my script: resource "aws_instance" "pub_instance" { ami = "ami-033fabdd332044f06" instance_type = "t2.micro" availability_zone = "us-east-2a" associate_public_ip_address = "true" vpc_security_group_ids = [aws_security_group.PUBSG.id] ...