ls -lhR /etc/ | egrep *.conf$ >/home/student/total_size.txt 2>/home/student/error.txt
So I used this command to get all .conf files from /etc/. I want the output in total_size.txt and my errors in error.txt. My output looks good, but the errors won’t redirect to error.txt, they appear in my terminal:
ls: cannot open directory '/etc/cups/ssl': Permission denied
I don’t know what to do; I tried 2>> instead of 2> but it won’t work either.
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Answer
This happens because ls‘s stderr still points to the terminal. You need to wrap pipeline in curly braces, and do the redirection outside. E.g:
{ ls -lhR /etc/ | egrep *.conf$; } >/home/student/total_size.txt 2>/home/student/error.txt