fold.1

操作系统设计与实现源码

.TH FOLD 1
.SH NAME
fold \- fold long lines
.SH SYNOPSIS
\fBfold\fR [\fB\-\fIn\fR]\fR [\fIfile\fR] ...\fR
.br
.de FL
.TP
\\fB\\$1\\fR
\\$2
..
.de EX
.TP 20
\\fB\\$1\\fR
# \\$2
..
.SH OPTIONS
.FL "\-\fIn\fR" "How long should the output lines be"
.SH EXAMPLES
.EX "fold \-60" "Fold \fIstdin\fR to 60 characters"
.EX "fold file" "Fold \fIfile\fP to 80 characters"
.SH DESCRIPTION
.PP
\fIFold\fR takes copies its input from the named file (or \fIstdin\fR,
if none is specified) to standard output.
However, lines longer than the given maximum (default 80) are broken
into multiple lines of the maximum length by inserting new line characters.
.SH "SEE ALSO"
.BR width (1).