让我们知道这对你的面试有所帮助:-) via:http://linoxide.com/linux-shell-script/shell-scripting-interview-questions-answers/
1) 如何向脚本传递参数 ? ./script argument 例子: 显示文件名称脚本 ./show.sh file1.txt cat show.sh #!/bin/bash echo $1 (LCTT 译注:谢谢某匿名访客的提醒,原题有误,修改之。) 2) 如何在脚本中使用参数 ? 第一个参数 : $1,第二个参数 : $2 例子: 脚本会复制文件(arg1) 到目标地址(arg2)...
Q:15 如何调试shell脚本 ? 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...
How does getopts command work?- The parameters to your script can be passed as -n 15 -x 20. Inside the script, you can iterate through the getopts array as while getopts n:x option, and the variable $option contains the value of the entered option....
Frequently Asked Questions What is the N in a shell script? You can use the \n character instead of repeatedly echoing to start new lines in your shell script. For Unix-based systems, the \n is a newline character that helps move the commands that follow it to a new line. ...
Here’smyscript1: #!/bin/dash first=1 for a in "$@" do if [ "$first" = 1 ] then set -- first= fi file=`mktemp` set -- "$@" "$file" printf '%s\n' "$a" > "$file" done pr -T -m "$@" rm "$@" Notes:
My suggestion is to either source the script using.orsource, which will execute the commands in the current shell environment. Alternatively, you can convert the script into a shell function. Solution 2: In order to address the problem, I have implemented this into my approach. ...
./script argument 2) 如何在脚本中使用参数 ? 第一个参数 :$1,第二个参数 :$2 cp$1 $2 3) 如何计算传递进来的参数 ? $# 4) 如何在脚本中获取脚本名称 ? $0 5) 如何检查之前的命令是否运行成功 ? $? 6) 如何获取文件的最后一行 ? tail-1 ...
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 ...
The model steering and capabilities require prompt engineering to even know that it should answer the questions. When the script is run inchat mode, the instruction is set automatically if none explicitly set by the user on invocation. The chat instruction will be updated according to the user ...