Solved

blank text file

Posted on 2011-09-14
3
242 Views
Last Modified: 2012-05-12
hello there,
I would like to create a cron to run every hour that can erase a txt file and leave it blank..
how can I do that?
0
Comment
Question by:XK8ER
  • 2
3 Comments
 
LVL 68

Expert Comment

by:woolmilkporc
ID: 36537853
0 * * * * /usr/bin/touch /path/to/file.txt
0
 
LVL 1

Author Comment

by:XK8ER
ID: 36537871
touch doesnt seem to be working
[(01:35 PM)][(root@alpha)] [(~)] $ cat aa.txt
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
[(01:35 PM)][(root@alpha)] [(~)] $ /bin/touch aa.txt
[(01:35 PM)][(root@alpha)] [(~)] $ cat aa.txt
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
sdfsdfsd
[(01:35 PM)][(root@alpha)] [(~)] $

Open in new window

0
 
LVL 68

Accepted Solution

by:
woolmilkporc earned 500 total points
ID: 36537938
Sorry, didn't read carefully enough (Smartphone!)

Try this:

0 * * * * >/path/to/file.txt

">" will erase the file or create it if it doesn't exist. It's essentially the same as

0 * * * * /usr/bin/cat /dev/null > /path/to/file.txt

wmp
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
linux pull logs and export FTP 4 70
Recommendations for Web-Based Multi-User File Manager / FTP software? 4 90
Linux VM 6 87
windows 7 starter missing password 21 75
Using 'screen' for session sharing, The Simple Edition Step 1: user starts session with command: screen Step 2: other user (logged in with same user account) connects with command: screen -x Done. Both users are connected to the same CLI sessio…
Google Drive is extremely cheap offsite storage, and it's even possible to get extra storage for free for two years.  You can use the free account 15GB, and if you have an Android device..when you install Google Drive for the first time it will give…
Learn how to navigate the file tree with the shell. Use pwd to print the current working directory: Use ls to list a directory's contents: Use cd to change to a new directory: Use wildcards instead of typing out long directory names: Use ../ to move…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.

808 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question