o-s , security

UNIX sed Commands

November 17, 2007

Unix sed Commands 

sed ‘s/wizard/guru/g’ file1                   replaces every occurrence of the string wizard with the string guru
sed -n ‘s/wizard/guru/gp’ file1              replaces and prints only those lines where the substitution was
                                                             made  -n print only when command p is given
sed ‘/Comment:/d’ file1                          deletes all the lines that contain Comment: from the file. sed
                                                               writes to standard output so the original file is not changed

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