2>/dev/null

tricampeon81 · November 26, 2015, 1:06pm

Friends have the following problem

a search may not find anything which would correct example:

ls -ltr *prueba.txt | nawk '{ print $9 }' > Procesar.dat 2>/dev/null

When he finds nothing gives me the following error

ls: prueba.txt: No such file or directory

because 2> / dev / null does not work I missing something?

RudiC · November 26, 2015, 1:32pm

ls needs its stderr redirected as well.

tricampeon81 · November 26, 2015, 1:39pm

I do not understand ,

Don_Cragun · November 26, 2015, 2:31pm

To fix this code you could use:

ls -ltr *prueba.txt 2>/dev/null | awk '{ print $9 }' > Procesar.dat

But this is highly inefficient and will not give you complete filenames if any of your filenames contain whitespace characters. The suggestions in your other thread today: Browse directory would be much better ways to do this.

Also, note that *prueba.txt will not match any of the files listed in the other thread. (There is a HUGE difference between *prueba.txt and prueba*.txt !)

tricampeon81 · November 26, 2015, 2:36pm

don cragun:

To fix this code you could use:
ls -ltr *prueba.txt 2>/dev/null | awk '{ print $9 }' > Procesar.dat
But this is highly inefficient and will not give you complete filenames if any of your filenames contain whitespace characters. The suggestions in your other thread today: Browse directory would be much better ways to do this.

Also, note that *prueba.txt will not match any of the files listed in the other thread. (There is a HUGE difference between *prueba.txt and prueba*.txt !)

So it is thanks Use the solution of another thread I stay perfect thank you very much once again