touch常见命令参数
-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
常用的命令展示
touch:创建file1—file10共10个文件
touch` `file``{1..10}
设定文件的时间戳
touch -t 201810121230 hh.sh 【-t用十进制数】
更新log.log的时间和log2012.log时间戳相同
touch` `-r hh hh.sh 【``touch` `-r目标文件 源文件】
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