HacksLinux SysAdmin Notes
How to create a symbolic link to a file or a directory from the Linux command line.
How to create a patch file using diff command and how to apply it to an original file or to a whole directory from the Linux command line.
How to anonymously change a file's Access (atime), Modification (mtime) and Change (ctime) timestamps in Linux.
How to clear or remove all the login information on Linux server from the command line.
How to detect and change a file's character encoding from the command line in Linux. Examples of converting text between: CP1251 (Windows-1251, Cyrillic), UTF-8, ISO-8859-1 and ASCII.
How to check read/write speed of a hard disk (HDD, SSD, USB Flash Drive) from the Linux command line using «dd» and «hdparm» on Linux Mint, Ubuntu, Debian, CentOS, RHEL.
This article shows how to schedule a cron job in Linux, shows the format (syntax) of scheduling jobs in crontab and provides some examples of cron tasks.
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