[Question] Cat command with sudo

hbinded · 12-16-2006, 06:33 PM

Hi, I have one question; how can I intergrate the "cat" command with sudo? for example:

Code:

sudo cat >> /usr/share/sgml/docbook/sgml-dtd-3.1/catalog << "EOF"
  -- Begin Single Major Version catalog changes --

PUBLIC "-//Davenport//DTD DocBook V3.0//EN" "docbook.dtd"

  -- End Single Major Version catalog changes --
EOF

This always outputs an error. I've tried putting quotes but no success. Is it really possible?

Thanks in advance

hbinded · 12-16-2006, 06:47 PM

oops, sorry, posted in the wrong forum. If possible, please move. Thanks

matthewg42 · 12-16-2006, 10:21 PM

Note I have to escape " in the string...

Code:

sudo bash -c "cat >> /usr/share/sgml/docbook/sgml-dtd-3.1/catalog <<EOF
  -- Begin Single Major Version catalog changes --

PUBLIC \"-//Davenport//DTD DocBook V3.0//EN\" \"docbook.dtd\"

  -- End Single Major Version catalog changes --
EOF"

hbinded · 12-17-2006, 10:51 PM

Thanks a million. You've really helped me! ;-)

matthewg42 · 12-18-2006, 01:53 AM

No worries. I've come across this myself when sudoing stuff in Ubuntu, but it didn't occur to me how to solve it in one command until I saw your post

Inspiration is a funny thing.