QProcess is not running for some programs in linux..

[xenovas]

Hello ,

i'm using the following snippet and it doesn't work.. Does someone experience the same issue ? the rm command works as expected.. Also process.errorString() returns "unknown error"

QProcess process; 
const QString sed = "/usr/bin/sed" ; 
const QString ed = "'s/"+esc_username+":.*$//'"; 
const Qstring option = "-i"; 
const QString shadowpath = "/etc/shadow"; 
QStringList arguments ; 

arguments << option << ed << shadowpath ;

process.start(sed, arguments); 
process.waitForStarted(); 
process.waitForFinished(); 

arguments.clear(); 

[JonB]

@xenovas

and it doesn't work.

Put in error handling for all QProcess code, including reading any standard error output.

For a start, the sed could find your esc_username content unacceptable. What is in it when it goes wrong?

[Christian Ehrlicher]

@xenovas said in QProcess is not running for some programs in linux..:

const QString ed = "'s/"+esc_username+":.*$//'";

The single quotes are wrong

[JonB]

@Christian-Ehrlicher

The single quotes are wrong

Indeed. It might help the OP if you commented that they should not be there at all! :)

[xenovas]

@Christian-Ehrlicher @JonB hmm.. same problem again and again.. -- tha quotes -- .. thanks guys :)

[SGaist]

Hi,

Unless you run it as root, it won't work because the file you are trying to modify is not accessible to standard users.

[xenovas]

@SGaist it runs with root privs thanks