date: 2020-10-20T09:26:21+08:00 # 创建日期 author: "Rustle Karl" # 作者
title: "touch 创建空白文件" # 文章标题
url: "posts/linux/tools/standard/touch" # 设置网页永久链接 tags: [ "linux", "cmd" ] # 标签 series: [ "Linux 学习笔记" ] # 系列 categories: [ "学习笔记" ] # 分类
weight: 20 # 排序优先级 chapter: false # 设置为章节
更新文件的访问、修改时间为当前时间，常用来创建空白文件
touch [OPTION]... FILE...| 参数 | 作用 |
|---|---|
| -a | change only the access time |
| -c, --no-create | do not create any files |
| -d, --date = STRING | parse STRING and use it instead of current time |
| -f | (ignored) |
| -h, --no-dereference | affect each symbolic link instead of any referenced file (useful only on systems that can change the timestamps of a symlink) |
| -m | change only the modification time |
| -r, --reference = FILE | use this file's times instead of current time |
| -t STAMP | use [[CC]YY]MMDDhhmm[.ss] instead of current time |
| --time = WORD | change the specified time: WORD is access, atime, or use: equivalent to -a ; WORD is modify or mtime: equivalent to -m |
| --help | display this help and exit |
| --version | output version information and exit |
- 创建空白文件
touch demo
ls -l demo
-rw-r--r-- 1 root root 12 Jan 10 12:08 demo