Sed Delete Last Character

How do I delete a last character from input line under UNIX / Linux using sed tool? My sample scientific input data line is as follows and I’d like to get rid of last + character only:


How do I used sed to delete last + character?

Use it as follows:
echo "379100.46+521870.11+363838.75+382869.59+" | sed '$s/.$//'
If you would like to calculate final result, enter:
echo "379100.46+521870.11+363838.75+382869.59+" | sed '$s/.$//' | bc -l

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🐧 11 comments so far... add one

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11 comments… add one
  • Mani Oct 18, 2010 @ 11:47


    Please help me for this.

    input : 379100.46+521870.11+363838.75+382869.59
    output : 379100.46+521870.11
    I would like remove last the character based last two delimiter. Please help me.

  • jupiter2005ster Mar 18, 2011 @ 14:17

    Try it:

    echo $text | sed -e ‘s/\(.*\)../\1/’

  • Konrad Höffner Jul 22, 2011 @ 11:52

    That was exactly what I was searching for, thanks!
    Can you explain why it works, though? I use sed quite often but I don’t know what the


    does, I always do

    sed "s|text|replacement|g"


  • SilversleevesX Nov 14, 2011 @ 4:46


    The “$” (dollar sign; I usually call it “cash”) is a marker or flag that tells sed to jump to the end of a line and edit something in the vicinity of the last character in it. I believe its counterpart for the beginning of a line is “^” (up-pointing carat), but don’t quote me on that. These markers are part of the sed program itself, which can present a problem only when the characters they represent are the ones you want to “sed out” of a string — sometimes even escaping them doesn’t work in those instances.

    Hope this helps.


  • SilversleevesX Nov 14, 2011 @ 9:37

    mandre on offers other approaches here.

    Evidently the ‘$s’ syntax at the beginning of the sed command isn’t common or even necessary. A simple

    sed ‘s/.$//’

    usually suffices.

    (The above is from one of the comments, not ivorde’s primary text.)


  • Manas Mar 12, 2012 @ 16:30

    I have file…called file1 in the below format


    means at the end of some of the lines ,i don’t have comma(,)
    now can i place comma in those lines so that my o/p looks like below


    • Manas Mar 12, 2012 @ 16:31

      sorry the o/p should be


  • Manas Mar 12, 2012 @ 16:41

    how to add a new column(first column) with variable string value to an existing file

    input file name ….filename1


    o/p file format

    ‘abc’ value will change based on the input to the INPUT file

    can you pls help

  • randomhello Aug 15, 2012 @ 6:37


    Deleting the + at the end is ok but what if there’s no + sign there, wouldn’t you delete the 9 then? and how to solve it so that only the + is deleted?

  • Konrad Höffner Aug 15, 2012 @ 12:20


    No problem, just replace the dot character ‘.’ which stands for “any character” by a ‘+’:

    sed ‘s/+$//’

  • meena Jan 4, 2016 @ 16:38

    how can i remove last but one character from each line in given file

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