freebsd-skq/usr.bin/lam/lam.1

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.\" Copyright (c) 1993
.\" The Regents of the University of California. All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" notice, this list of conditions and the following disclaimer in the
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.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
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.\" may be used to endorse or promote products derived from this software
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.\" @(#)lam.1 8.1 (Berkeley) 6/6/93
1999-08-28 01:08:13 +00:00
.\" $FreeBSD$
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.\"
.Dd September 20, 2001
.Dt LAM 1
.Os
.Sh NAME
.Nm lam
.Nd laminate files
.Sh SYNOPSIS
.Nm
.Op Fl f Ar min . Ns Ar max
.Op Fl s Ar sepstring
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.Op Fl t Ar c
.Ar
.Nm
.Op Fl p Ar min . Ns Ar max
.Op Fl s Ar sepstring
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.Op Fl t Ar c
.Ar
.Sh DESCRIPTION
.Nm Lam
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copies the named files side by side onto the standard output.
The
.Em n-th
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input lines from the input
.Ar files
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are considered fragments of the single long
.Em n-th
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output line into which they are assembled.
The name `\fB\-\fP' means the standard input, and may be repeated.
.Pp
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Normally, each option affects only the
.Ar file
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after it.
If the option letter is capitalized it affects all subsequent files
until it appears again uncapitalized.
The options are described below.
.Bl -tag -width indent
.It Fl f Ar min . Ns Ar max
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Print line fragments according to the format string
.Ar min . Ns Ar max ,
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where
.Ar min
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is the minimum field width and
.Ar max
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the maximum field width.
If
.Ar min
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begins with a zero, zeros will be added to make up the field width,
and if it begins with a `\-', the fragment will be left-adjusted
within the field.
.It Fl p Ar min . Ns Ar max
Like
.Fl f ,
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but pad this file's field when end-of-file is reached
and other files are still active.
.It Fl s Ar sepstring
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Print
.Ar sepstring
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before printing line fragments from the next file.
This option may appear after the last file.
.It Fl t Ar c
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The input line terminator is
.Ar c
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instead of a newline.
The newline normally appended to each output line is omitted.
.El
.Pp
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To print files simultaneously for easy viewing use
.Xr pr 1 .
.Sh EXAMPLES
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The command
.Bd -literal
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lam file1 file2 file3 file4
.Ed
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.Pp
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joins 4 files together along each line.
To merge the lines from four different files use
.Bd -literal
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lam file1 \-S "\\
" file2 file3 file4
.Ed
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.Pp
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Every 2 lines of a file may be joined on one line with
.Bd -literal
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lam \- \- < file
.Ed
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.Pp
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and a form letter with substitutions keyed by `@' can be done with
.Bd -literal
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lam \-t @ letter changes
.Ed
.Sh SEE ALSO
.Xr join 1 ,
.Xr paste 1 ,
.Xr pr 1 ,
.Xr printf 3
.Sh STANDARDS
Some of the functionality of
.Nm
is standardized as the
.Xr paste 1
utility by
.St -p1003.2 .