./test.sh3输出:+ line=3+cat+echo'before deleting'before deleting+catcc1234567++wc-lcc++awk'{print $1}'+ count=7+'['3-gt7']'+ from=5+echo'all lines:7, you want delete:3, from:5'all lines:7, you want delete:3, from:5+sed-i'5,$d'cc+echo'after deleting:'after deleting:+...
# /opt/script/delete-old-files.sh #!/bin/bash prev_count=0 fpath=/var/log/apache/2daygeek_access.* find $fpath -type f -mtime +15 -exec ls -ltrd {} \; > /tmp/file.out find $fpath -type f -mtime +15 -exec rm -rf {} \; count=$(cat /tmp/file.out | wc -l) if ...
要删除一个文件,你可以使用 $rmmyfile1.temp Bash 这将删除myfile1.temp文件。 要想一次专门删除多个文件,可以使用rm命令,后面跟上你要删除的文件的名称,用空格隔开。 $rmmyfile1.temp myfile2.temp myfile3.temp Bash 这将删除文件myfile1.temp、myfile2.temp和myfile3.temp。 Wildcards 除了指定你要删...
20. Delete FilesTo delete an existing file, you can use an if statement to check if the file exists and instruct the bash script to remove it. Start by creating the bash script file:nano deletefiles.shThe following script will create a new file named cars.txt, and then – with the ...
BASH SCRIPT FILE #!/bin/bash # Create a temporary log file LOGFILE=$(/bin/mktemp /tmp/my_log.XXXXXX) # Stuff happens here and all works fine. # ... # Stuff is done. # Delete the log rm -f "$(LOGFILE)" THE PROBLEM 最后一行似乎没有触发,我有一个/tmp文件夹,现在有数千个这些日...
We can do this by determining how old a script is and deleting it from a specific location. Let’s say we are going to delete files older than 90 days. If you do not have older files, you can create them with the command, ‘touch -d "Fri, 2 September 2022 12:30:00" file1’....
optional-fflag,Old-Files-Deletecan be run to filter filenames, so file deletes can be specifically pattern matched (globbing). For example, if the use case is to delete files in/home/user/picsolder than 10 days, but only to delete jpg images files, then the following script would be ...
printf “$SCRIPT:$LINENO: the command $who is not available –“/ “ aborting/n “ >&2 exit 192 fi 一般,大部分 Linux 命令只是简单的返回 1 或 0 ,表示失败还是成功。这也许就是你的脚本所需要的所有信息。特殊的错误信息任然显示在标准输出上。
lineItem=$(grep -nE "$keyword" $filename | head -1 | awk -F ":" '{print$1}')done } # 调用函数 # 参数1：要删除的行中的字符串 参数2：也需要删除的前几行行数 参数3：也需要删除的后几行行数 参数4：文件名 deleteKeywordAndPreviousNextLines "hello" 0 3 ./test.txt # 引申 ...
使用chmod命令设置脚本的执行权限:chmod +x script.sh。 文件列表获取问题: 确保FTP服务器允许列出目录内容。 检查FTP目录路径是否正确。 文件下载问题: 确保FTP服务器允许下载文件。 检查本地目录路径是否正确,并且有写权限。 通过以上步骤和示例代码,你可以实现一个简单的Bash脚本来自动下载FTP服务器中新添加的文件。