#!/bin/bash if [ -s aFile ]; then echo "The File has some data." else echo "The File is empty." fi The above code will return "The File is empty" even if the file does not exist. To counter that, I added a nes
Check a file exists 1 2 3 4 5 6 7 1. 2. 3. 4. 5. 6. 7. #!/bin/bashif [[ -e /tmp/adb.log ]]then echo "Exists"else echo "Not Exists"fi 1. Check Empty String 1 2 3 4 5 6 1. 2. 3. 4. 5. 6. if [[ -z "$emptyString" ]]then echo "Empty"else echo "Not ...
About “bash if file does not exist” issue You might want to check if file does not exist in bash in order to make the file manipulation process easier and more streamlined. This is the job of the test command, which can check if a file exists and its type. Since only the check is...
在Bash Shell中,可以使用复合条件来在一个if语句中检查多个条件。复合条件主要有两种形式:逻辑与(&&)和逻辑或(||)。 1. 逻辑与(&&): - 概念:逻辑与用于同时检查多个条件...
if [ -f "$FILENAME" ] ; then echo "file exist" else echo "file not exist" fi -b FILE 파일이 존재하고 특별한 파일인지 체크 FILE exists and is block special -c FILE 파일이 존재하고 특수문자가 있는지 체크 ...
bash Either file C:\pythondemo\test.txt doesn't exist in the given directory or this program may not have access to the file. Method-3: Using NIO From Java 7 onward, theexists()method of java.nio.file.Files is a static method that returns true if the file exists. Whereas, thenotEx...
#!/bin/bash # 检查是否提供了文件名参数 if [ -z "$1" ]; then echo "Usage: $0 <filename>" exit 1 fi FILE="$1" # 检查文件是否存在 if [ ! -f "$FILE" ]; then echo "File '$FILE' does not exist." exit 1 fi # 检查文件是否可读 if [ -r "$FILE" ]; then echo ...
/bin/bash filename=$1 if [ ! -e $filename ]; then echo "CRITICAL status - file $filename doesn't exist"exit 2 #返回临界状态,那是由于你的最糟糕情况是 该文件根本就不存在。 #如果前一个条件通过(文件存在),那么接下来检查该文件是否可读:...
-e "$file_or_dir" ];then echo "filename or dirname does not exist." return 1 fi # 判断是否有读权限 if [ -r "$file_or_dir" ];then echo "$file_or_dir has read permission." else echo "$file_or_dir does not have read permission." fi # 判断是否有写权限 if [ -w "$file_...
,path.is_file()) Output bash Does demo.txt exists True Example 2 In this example, we will assume that file if exists lies in the different folder from python script. python # Import Path from pathlib module from pathlib import Path # Check if file exist path = Path("/pythondemo/Demo...