if [ -e "/path/to/file" ]; then echo "File exists." else echo "File does not exist." fi 在这个语法中：[ -e "/path/to/file" ] 检查指定路径下的文件是否存在。这种方法被广泛使用，对于 Bash 脚本中的基本文件存在检查非常有效。与传统的 [ .. .]命令相比
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 ...
/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. The test command also has a logical "...
mkdir: cannot create directory ‘learning’: File exists 1 1. 2. 3. 4. 5. 最佳实践 建议通过将 set -x 命令添加到 shell 脚本来启用调试模式,如下所示: [root@localhost ~]# cat #!/bin/bash set -x echo "Hello World!" ...
/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...
执行命令区域，否则 不进入循环，介绍while 命令 行3，执行命令区域，这些命令中，Bash，Unix shell的...
test -e linuxmi.txt || test -e linuxmi.py && echo "linuxmi exists" || echo "linuxmi does not exist" 排除test 关键字 您实际上不需要使用单词test来执行比较。您所要做的就是将语句括在方括号中,如下所示: ⚡ [ -e linux.py ] && echo "linux.py exists" || echo "file1 does 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...