CODEWITHSUNDEEP
rshiny
user90
user90

Reputation: 381

Reading zip files using fread

I tried to call a zip file using fread as like this


data<-("www/608.zip")

test<- fread('gunzip -cq data')

It showed this error does not exist or is non-readable

But it will work if I call

test<- fread('gunzip -cq www/608.zip')

On my script each time value of data will change so I used If command for choosing data as like this

    data<-reactive({
    if (input$list == 'all') 
    { 
    "www/6.zip"
     }
    else{
    if (input$list == 'hkj')
     {
    "www/6.zip"
    }

Upvotes: 1

Views: 212

Answers (3)

akrun
akrun

Reputation: 887241

We can also use glue

data <- "www/608.zip"
fread(cmd = glue::glue("gunzip -cq {data}"))

Upvotes: 1

Pablo B.
Pablo B.

Reputation: 121

If you want to read the file path you can use paste0 to create the string

data <- "www/608.zip"
test <- fread(cmd = paste0("gunzip -cq ", data))

fread suggest to use cmd argument for security reasons.

Upvotes: 1

user13653858
user13653858

Reputation:

I think it should work as follows:

data <- "www/608.zip"
test <- fread(cmd = paste("gunzip -cq", data))

i.e. you have to create a command string with paste() first and then pass it as cmd argument to fread().

Upvotes: 2

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