Bash command to sum a column of numbers

Question

I want a bash command that I can pipe into that will sum a column of numbers  I just want a quick one liner that will do something essentially like this   cat FileWithColumnOfNumbers txt   sum

User · Answer

Does two lines count   awk    sum     1         END   print sum            You can then use it without the superfluous  cat    sum  lt  FileWithColumnOfNumbers txt sum   FileWithColumnOfNumbers txt   FWIW  on MacOS X  you can do it with a one-liner   awk    sum     1    END   print sum

User · Answer

If you have ruby installed  cat FileWithColumnOfNumbers txt   xargs ruby -e  puts ARGV map  amp  to i  inject  amp

User · Answer

a followup to ghostdog74s comments   bash-2 03  uname -sr SunOS 5 8  bash-2 03  perl -le  print for 1  49999998   gt  infile  bash-2 03  wc -l infile  49999998 infile  bash-2 03   time paste -sd  infile   bc bundling space exceeded on line 1  teletype Broken Pipe  real    0m0 062s user    0m0 010s sys     0m0 010s  bash-2 03  time nawk   s   1 END print s   infile 1249999925000001  real    2m0 042s user    1m59 220s sys     0m0 590s bash-2 03  time  usr xpg4 bin awk   s   1 END print s   infile 1249999925000001  real    2m27 260s user    2m26 230s sys     0m0 660s  bash-2 03  time perl -nle     s        END   print  s        infile 1 249999925e 15  real    1m34 663s user    1m33 710s sys     0m0 650s

User · Answer

Use a for loop to iterate over your file      sum 0  for x in  cat  lt your-file gt    do let sum  x  done  echo  sum

User · Answer

root pentest3r      find   -xdev -size  1024M     while read a   do aa   du -sh  a   cut -d     -f1    o      o  aa     done  echo   o

User · Answer

You can use bc  calculator   Assuming your file with  s is called  n      cat n 1 2 3    cat n   tr   012        echo  0     bc  6   The tr changes all newlines to      then we append 0 after the last plus  then we pipe the expression  1 2 3 0  to the calculator  Or  if you are OK with using awk or perl  here s a Perl one-liner    perl -nle   sum         END   print  sum  n 6

User · Answer

I like the chosen answer  However  it tends to be slower than awk since 2 tools are needed to do the job      wc -l file 49999998 file    time paste -sd  file   bc 1448700364  real    1m36 960s user    1m24 515s sys     0m1 772s    time awk   s   1 END print s   file 1448700364  real    0m45 476s user    0m40 756s sys     0m0 287s

User · Answer

Using existing file   paste -sd  infile   bc   Using stdin    lt cmd gt    paste -sd    bc   Edit  With some paste implementations you need to be more explicit when reading from stdin    lt cmd gt    paste -sd  -   bc

User · Answer

while read -r num  do   sum    num    done  lt  inputfile  echo  sum

User · Answer

The following command will add all the lines first field of the awk output   awk   s   1  END  print s   filename

[bash] Bash command to sum a column of numbers

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