head(1) manual page
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head - display first few lines of files
head [ -number
| -n number ] [ filename... ]
SUNWcsu
The head utility
copies the first number of lines of each filename to the standard output.
If no filename is given, head copies lines from the standard input. The
default value of number is 10 lines.
When more than one file is specified,
the start of each file will look like:
- ==> filename <==
Thus, a common way
to display a set of short files, identifying each one, is:
example% head -9999 filename1
filename2 ...
The following options are supported:
- -n number
- The first
number lines of each input file will be copied to standard output. The number
option-argument must be a positive decimal integer.
- -number
- The number argument
is a positive decimal integer with the same effect as the -n number option.
If no options are specified, head will act as if -n 10 had been specified.
The following operand is supported:
- file
- A path name of an input
file. If no file operands are specified, the standard input will be used.
To write the first ten lines of all files (except those with a
leading period) in the directory: example% head *
See environ(5)
for descriptions of the following environment variables that affect the
execution of head: LC_CTYPE
, LC_MESSAGES
, and NLSPATH
.
The following
exit values are returned:
- Successful completion.
- >0
- An error occurred.
cat(1)
, more(1)
, pg(1)
, tail(1)
, environ(5)
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