sed examples

Last revision August 6, 2004

Remove trailing blanks or tabs at the end of any line:

sed -e 's/[ ^I]*$//' input > output

(here, the ^I means the TAB character, normally obtained by pressing the TAB key, although you can also press CTRL-I).

Add a newline character after each input line to create "double spaced" output:

sed -f 'addnl.sed' input > output

Here, the sed commands are more complicated and stored in a script file addnl.sed, whose contents are:
      a\
(That is, "a\" on the first line, followed by a blank line).

Delete lines in a range. This example deletes all the message lines in a Microprobe output file up to the start of the first data output lines (denoted by a line starting with "Pt #")
      sed -e '1,/^Pt #/d' 1174.prb > 1174.data

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