abc : The string is not empty 文件测试运算符 实例: #!/bin/bash file="/home/shiyanlou/test.sh" if [ -r $file ] then echo "The file is readable" else echo "The file is not readable" fi if [ -e $file ] then echo "File exists" else echo "File not exists" fi 结果 The file ...
if [ -e "/path/to/file" ]; then echo "File exists." else echo "File does not exis...
/bin/bashFILE=$1if[ -f$FILE];thenecho"File$FILEexists."elseecho"File$FILEdoes not exist."fi 如何仅检查文件不存在? test命令(这里写作[)有一个 "not" 逻辑运算符,即感叹号!: if[ ! -f /tmp/foo.txt ];thenecho"File not found!"fi
判断文件是否存在 if [ -e $file ] then #5. 获取父目录 pdir=$(cd -P $(dirname $file); pwd) #6. 获取当前文件的名称 fname=$(basename $file) ssh $host "mkdir -p $pdir" rsync -av $pdir/$fname $host:$pdir else echo $file does not exists! fi done done 参考的写法2(报错的写法...
This is the job of the test command, which can check if a file exists and its type. Since only the check is completed, the test command sets the exit code to 0 or 1 (either false or true, respectively) whether the test is successful or not. ...
When an interactive shell that is not a login shell is started, bash reads and executes commands from ~/.bashrc, if that file exists. This may be inhibited by using the –norc option. The –rcfile file option will force bash to read and execute commands from file instead of ~/.bashrc...
/bin/bashFILE=$1 if [ -f $FILE ]; then echo "File $FILE exists." else echo "File $FILE does not exist." fi我如何只检查文件是否不存在?解决方案1:一个优秀的自由职业者,应该有对需求敏感和精准需求捕获的能力,而huntsbot.com centos提示bash命令找不到...
如下图: 测试效果 此时可以看到输出有点问题 Output (输出)部分根据官方文档,output 也有 File, GIT, GIT-Crypt 和 HTTP,其中 git 和 file 方式最多...,默认为 file,而如果选用的为 file,也就是本地存储的方式,需要一个目录,默认配置路径为 ~/.config/oxidized/configs,这里的报错提示是不存在该目录,...
File/usr/bin/boot.ini exists 请参阅之前的文章以了解各种bash if 语句类型。 Bash 示例 2. 比较数字 下面的脚本从用户那里读取两个整数,并检查这两个数字是否相等或大于或小于彼此。 $ cat numbers.sh #!/bin/bash echo"Please enter first number"read first ...
echo "$file not found." fi 1. 2. 3. 4. 5. 6. 7. 8. 检测文件属性的相关操作符 如果文件存在,并且具有相应的属性,如下的操作符都会返回true: Shell - b FILE FILE exists and is block special - c FILE FILE exists and is character special ...