decompress tar.gz

s002wjh

how do i decompress a file

QTemporaryFile* file = some input file i got it
QString myFile =/home/test/xx.tar.gz;

file->copy(myFile);

i want extract file into myFile path

SGaist

Hi,

Either use QProcess to call the tar command line tool or use the KArchive library

s002wjh

would using system() command work too? so i dont have to do the qprocess

SGaist

You can. What is your issue with QProcess ?

s002wjh

well i have some trouble find the "tar" program, i remember qprocess is like this

myProcess->start(program, arguments);
arguments=path of tar.gz
program =path of tar program which i have no idea where is at under my linux.

also if i run on another linux not sure tar app gonna be at same location.

SGaist

No, if tar is properly installed, you can just call it without any special path before it.

s002wjh

so in this case its

myProcess->start(tar, filepath);?

also after finish untar does qprocess automatically terminate? or i have to kill it

SGaist

If you want tar to do something you have to pass it arguments, not just the archive name.

If you take a look at the documentation I linked to, you'll see how to build the argument list to pass as second argument to the start method.