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Re: st: log file lines numbers - can they be created/inserted

From   Maarten buis <>
Subject   Re: st: log file lines numbers - can they be created/inserted
Date   Thu, 18 Nov 2010 17:47:01 +0000 (GMT)

--- On Thu, 18/11/10, Ben Hoen wrote:
> I often present output to the team of researchers working
> on the project I have, and have found the log files to be
> the most useful to present results in these preliminary
> stages (before any final output is needed to be produced)
> Plots are exported via a separate bit of code.  
> It would be extremely helpful to have line numbers display
> in a log file so we all could quickly move to an output
> somewhere in a long file.  Is there a way to do that?  

Below is a rough first version of a command -log_ln- that
add line numbers to a log file.

*-------------------- begin example ----------------------
program drop _all

// program begins
*! version 1.0.0 MLB 18Nov2010
program log_ln
    version 11.1
    syntax using/, save(string) [replace append]

    confirm file `"`using'"' 
    if "`replace'`append'" == "" {
        confirm new file `"`save'"'

    tempname fh_r fh_w
    local linenum = 0
    file open `fh_r' using `"`using'"', read
    file open `fh_w' using `"`save'"', write `replace' `append'
    file read `fh_r' line

    while r(eof)==0 {
        local linenum = `linenum' + 1
        file write `fh_w' %4.0f (`linenum') `"   `macval(line)'"' _n
        file read `fh_r' line
    file close `fh_r'
    file close `fh_w'
// program ends

// example begins
cd c:\temp

log using foo, replace

sysuse auto, clear
reg price mpg

log close

log_ln using "c:\temp\foo.smcl", save("c:\temp\foo2.smcl") replace
// example ends

// view results from example
view "c:\temp\foo2.smcl"
type "c:\temp\foo2.smcl"
*----------------------------- end example ----------------------------

Hope this helps,

Maarten L. Buis
Institut fuer Soziologie
Universitaet Tuebingen
Wilhelmstrasse 36
72074 Tuebingen


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