BSD 4_3_Tahoe development

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SUM(1)              UNIX Programmer's Manual               SUM(1)



N\bNA\bAM\bME\bE
    sum - sum and count blocks in a file

S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS
    s\bsu\bum\bm file

D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN
    _\bS_\bu_\bm calculates and prints a 16-bit checksum for the named
    file, and also prints the number of blocks in the file.  It
    is typically used to look for bad spots, or to validate a
    file communicated over some transmission line.

S\bSE\bEE\bE A\bAL\bLS\bSO\bO
    wc(1)

D\bDI\bIA\bAG\bGN\bNO\bOS\bST\bTI\bIC\bCS\bS
    `Read error' is indistinguishable from end of file on most
    devices; check the block count.





































Printed 7/9/88           April 29, 1985                         1