[PLUG] Using less on a growing file

Smith, Cathy Cathy.Smith at pnnl.gov
Thu Sep 25 21:30:28 UTC 2014


You can also do a tail -f

Cathy
---
Cathy L. Smith
IT Engineer

Pacific Northwest National Laboratory
Operated by Battelle for the
U.S. Department of Energy

Phone:      509.375.2687
Fax:        509.375.2330
Email:      cathy.smith at pnnl.gov


-----Original Message-----
From: plug-bounces at lists.pdxlinux.org [mailto:plug-bounces at lists.pdxlinux.org] On Behalf Of Bill Barry
Sent: Thursday, September 25, 2014 2:22 PM
To: tim at wescottdesign.com; Portland Linux/Unix Group
Subject: Re: [PLUG] Using less on a growing file

On Thu, Sep 25, 2014 at 2:16 PM, Tim Wescott <tim at wescottdesign.com> wrote:
> Is there a way to use less, or a less-like viewer, to view a growing 
> file such that as the file grows, paging down will get me more and 
> more content?
>
> As far as I can tell, just running 'less myfile.txt', when myfile.txt 
> is being written to by another app, seems to just take a snapshot of 
> myfile.txt -- I want to be able to look at the full extent of the file 
> AS IT GROWS, to monitor ongoing long computations to see how they're 
> doing.

less itself works that way.   shift-g will reveal anything new added
to myfile.txt after you opened it with less.

Bill
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