[R] Alter a line in a file.

Joel joda2457 at student.uu.se
Thu May 5 15:13:34 CEST 2011


jholtman wrote:
> 
> a <- readLines(textConnection('setting1="value1"
> setting2="value2"
> setting3="value3"
> setting4="value4"'))
> closeAllConnections()
> # change  values
> ac <- sub('setting4="value4"', 'setting4="value5"', a)
> writeLines(ac, con='myFile.txt')
> 

Problem is that I dont know the value on all the settings that I wanna
change otherwise that looks like something to continue on.



Petr Pikal wrote:
> 
> What file, what is its structure, is it some R object or separate file?
> What did you try and what went wrong?
> 
> Regards
> Petr 
> 

Just a normal textfile nothing fancy
Ive tried diffrent kind of ways of useing my OS witch is linux by the system
command to do it for me but Im not good enought on regexp to get it to work
properly.

--
View this message in context: http://r.789695.n4.nabble.com/Alter-a-line-in-a-file-tp3498187p3498316.html
Sent from the R help mailing list archive at Nabble.com.



More information about the R-help mailing list