Explore two ways of determining the absolute path of a bash script, irrespective of how it is invoked.
4.bash的执行过程1>命令的执行是从上到下,从左到右的分析与执行2>命令执行时,命令和参数间的多个空白都会被忽略3>空白行也会被忽略4>没读取一个Enter字符,就开始执行该程序5>“#”作为批注,任何加在#后面的数据都将视为批注6>shell script 都是以*.sh结尾,而且一个shell脚本能否被执行,必须得有x权限7>ba...
编写shell script的良好习惯 1.文件头处记录 1.script的功能; 2.script的版本; 3.script的作者与联络方式; 4.script的历史记录; 5.script内较特殊的命令,最好使用“绝对路径”的方式来执行; 6.script执行时需要的环境变量预先生命与设置。 同时,根其他编码一样,添加适当的注释,整齐的缩进排版都是很重要的。 2...
echo"Get return array: ${array_ret[*]}"index=0forvaluein${array_ret[*]};doecho"list[$index]=$value"let index+=1done 尽管bash-script提供了数组的专有形式,但使用上与带空格的字符串没有太大的差别。实际上,实参尚可以数组格式传入(当然也可以先整合为字符串),但返回值只能利用echo,返回字符串格...
$0 is the name of the current script as it was executed. So if we run the script as ./examples/shell/absolute.sh then that will be the content of $0. realpath prints the abosulte path. dirname prints the directory name, leaving the last part of the path which is in this case ...
./myscript-v-f-d-o/fizz/someOtherFile./foo/bar/someFile 如何解析v、f 和d,使它们都被设置为true,并且outFile 等于 /fizz/someOtherFile ? 回答: 以空格分隔选项和参数 样例程序如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 cat>/tmp/demo-space-separated.sh<<'EOF'#!/bin/bashPOSITIO...
#!/usr/bin/env bash script_dir=$(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: ...
TARGET_FOLDER=/path/[TARGET FOLDER] #create the backup tar -cpzf $DESTINATION $TARGET_FOLDER As a bonus, you may want to increase some of the complexity of this project and increase the level of automation by adding scheduled execution to the backup script. For this, you can use the cron...
So here, we’ve created a new file called script2.sh, and we’d like to get the absolute and directory paths of script2.sh. In script.sh: script.sh #!/bin/bash path=$(realpath script2.sh) echo‘The absolute path is’$path ...
echo "script executed" [cairui@cai shell]$ sh debug.sh + echo 1 1 + set +x + echo 2 2 + set +x + echo 3 3 + set +x + echo 4 4 + set +x + echo 5 5 + set +x + echo 6 6 + set +x script executed 在上面的脚本中,只会打印出 echo $i的调试信息。因为使用了-x和+...