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"vi"-ing a constantly updated file

 
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Top Forums UNIX for Dummies Questions & Answers "vi"-ing a constantly updated file
# 8  
Old 04-27-2007
Is it feasible..?
Hi Percy,
I wonder why the command
Code:
sed '/hashcode/ d' logfile > temp ; mv -f temp logfile

wont be useful..!

Is that because it takes time to perform 'sed' and 'mv' operations. But in this case, you can type a single command and relax Smilie

BTW, if u have perl installed, I can suggest one more command..

Code:
perl -i -ne 's/^.*hashcode.*//; print if/\S/;' logfile

One shortcoming of this command is that it will remove any other blank lines in the file, if present.

Is the command(s) suggested feasible?

Thanks
Srini
Last edited by srinivasan_85; 04-27-2007 at 02:00 AM.. Reason: Adding some more details
# 9  
Old 04-27-2007
Perl is banned around here by the powers that be.

As for the sed command - yes, this would be good, if I fancy messing around with a 2048 char hashcode Smilie
 
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