On 13/03/07, Marc Schwartz <marc_schwartz@xxxxxxxxxxx> wrote:
Dan Track wrote: > Hi > > Could someone please tell me how I can grep for two or more different > words in one command instead of piping them through. > > e.g I don't want to do > > cat /tmp/file | grep -v cat | grep -v grey > > I'd like to run that from one grep command. > > Many Thanks > Dan Two possibilities: $ cat .Xresources Emacs.default.attributeBackground: white Emacs.default.attributeForeground: black ! XEmacs*EmacsFrame.default.attributeForeground: black XEmacs*EmacsFrame.default.attributeBackground: white ! xterm*geometry: 100x32 xterm*faceName: bitstream vera sans mono xterm*faceSize: 12 xterm*background: white xterm*rightScrollBar: true # Use grep with the -E arg to specify extended # regex usage $ cat .Xresources | grep -Ev "(white|black)" ! ! xterm*geometry: 100x32 xterm*faceName: bitstream vera sans mono xterm*faceSize: 12 xterm*rightScrollBar: true # Or just use egrep $ cat .Xresources | egrep -v "(white|black)" ! ! xterm*geometry: 100x32 xterm*faceName: bitstream vera sans mono xterm*faceSize: 12 xterm*rightScrollBar: true You might want to look at: http://en.wikipedia.org/wiki/Regular_expression http://www.regular-expressions.info/ There is also a great book: http://regex.info/ HTH, Marc Schwartz
From Dan's question, it appears that he wants AND behaviour, not OR
behaviour, from the two greps. Dotan Cohen http://what-is-what.com/what_is/ubuntu.html http://lyricslist.com/lyrics/lyrics/2/445/sepultura/against.html
