| .TH FREQ 1 | 
 | .SH NAME | 
 | freq \- print histogram of character frequencies | 
 | .SH SYNOPSIS | 
 | .B freq | 
 | [ | 
 | .B -dxocr | 
 | ] | 
 | [ | 
 | .I file ... | 
 | ] | 
 | .SH DESCRIPTION | 
 | .I Freq | 
 | reads the given files (default standard input) | 
 | and prints histograms of the character frequencies. | 
 | By default, | 
 | .I freq | 
 | counts each byte as a character; | 
 | under the | 
 | .B -r | 
 | option it instead counts | 
 | .SM UTF | 
 | sequences, that is, runes. | 
 | .PP | 
 | Each non-zero entry of the table is printed preceded by the byte value, | 
 | in decimal, octal, hex, and | 
 | Unicode | 
 | character (if printable). | 
 | If any options are given, the | 
 | .BR -d , | 
 | .BR -x , | 
 | .BR -o , | 
 | .B -c | 
 | flags specify a subset of value formats: decimal, hex, octal, and | 
 | character, respectively. | 
 | .SH SOURCE | 
 | .B \*9/src/cmd/freq.c | 
 | .SH SEE ALSO | 
 | .IR utf (7), | 
 | .IR wc (1) |