Add manpages for countdown, line and sign

Makefile

@@ -12,11 +12,13 @@ distdir:
 	mkdir -p $(DISTBIN)
 	mkdir -p $(DISTMAN)/man1
 
-line: $(SRCDIR)/line.c distdir
+line: $(SRCDIR)/line.c $(SRCDIR)/line.1 distdir
 	cc -o $(DISTBIN)/line $(SRCDIR)/line.c
+	cp $(SRCDIR)/line.1 $(DISTMAN)/man1/line.1
 
-sign: $(SRCDIR)/sign distdir
+sign: $(SRCDIR)/sign $(SRCDIR)/sign.1 distdir
 	cp $(SRCDIR)/sign $(DISTBIN)/sign
+	cp $(SRCDIR)/sign.1 $(DISTMAN)/man1/sign.1
 
 pasta: $(SRCDIR)/pasta distdir
 	cp $(SRCDIR)/pasta $(DISTBIN)/pasta
@@ -25,8 +27,9 @@ suptime: $(SRCDIR)/suptime.c $(SRCDIR)/suptime.1 distdir
 	cc -o $(DISTBIN)/suptime $(SRCDIR)/suptime.c
 	cp $(SRCDIR)/suptime.1 $(DISTMAN)/man1/suptime.1
 
-countdown: $(SRCDIR)/countdown.c distdir
+countdown: $(SRCDIR)/countdown.c $(SRCDIR)/countdown.1 distdir
 	cc -o $(DISTBIN)/countdown $(SRCDIR)/countdown.c
+	cp $(SRCDIR)/countdown.1 $(DISTMAN)/man1/countdown.1
 
 stopwatch: $(SRCDIR)/stopwatch.c $(SRCDIR)/stopwatch.1 distdir
 	cc -o $(DISTBIN)/stopwatch $(SRCDIR)/stopwatch.c

src/countdown.1

@@ -0,0 +1,21 @@
+.TH COUNTDOWN 1
+.SH NAME
+countdown \- start a countdown timer
+.SH SYNOPSIS
+.B countdown
+.IR time
+.SH DESCRIPTION
+.B countdown
+counts down from \fItime\fR to 0 seconds.
+.SH OPTIONS
+.TP
+.I time
+The time in seconds to countdown from.
+.SH EXAMPLES
+Start a 5 second countdown
+.PP
+.nf
+.RS
+countdown 5
+.RE
+.fi

src/line.1

@@ -0,0 +1,17 @@
+.TH LINE 1
+.SH NAME
+line \- extract line from input
+.SH SYNOPSIS
+.B line
+.IR ln
+.SH DESCRIPTION
+.B line
+extracts the ln'th line from input provided over STDIN
+.SH EXAMPLES
+Get the 3rd line from the file line.1
+.PP
+.nf
+.RS
+line 3 < line.1
+.RE
+.fi

src/sign.1

@@ -0,0 +1,8 @@
+.TH SIGN 1
+.SH NAME
+sign \- generate a signature
+.SH SYNOPSIS
+.B sign
+.SH DESCRIPTION
+.B sign
+generates a signature by combining the current user, hostname and date