diff options
Diffstat (limited to 'usr.bin/join')
-rw-r--r-- | usr.bin/join/join.1 | 42 |
1 files changed, 26 insertions, 16 deletions
diff --git a/usr.bin/join/join.1 b/usr.bin/join/join.1 index b42ea5a..ed828a7 100644 --- a/usr.bin/join/join.1 +++ b/usr.bin/join/join.1 @@ -51,8 +51,8 @@ .Bk -words .Ek .Op Fl t Ar char -.Op Fl \&1 Ar field -.Op Fl \&2 Ar field +.Op Fl 1 Ar field +.Op Fl 2 Ar field .Ar file1 .Ar file2 .Sh DESCRIPTION @@ -100,8 +100,8 @@ option specifies the fields that will be output from each file for each line with matching join fields. Each element of .Ar list -has the either the form -.Ql file_number.field , +has either the form +.Ar file_number . Ns Ar field , where .Ar file_number is a file number and @@ -129,18 +129,20 @@ Do not display the default output, but display a line for each unpairable line in file .Ar file_number . The options -.Fl v Ar 1 +.Fl v Cm 1 and -.Fl v Ar 2 +.Fl v Cm 2 may be specified at the same time. .It Fl 1 Ar field Join on the .Ar field Ns 'th -field of file 1. +field of +.Ar file1 . .It Fl 2 Ar field Join on the .Ar field Ns 'th -field of file 2. +field of +.Ar file2 . .El .Pp When the default field delimiter characters are used, the files to be joined @@ -164,7 +166,7 @@ If one of the arguments or .Ar file2 is -.Dq - , +.Sq Fl , the standard input is used. .Sh EXIT STATUS .Ex -std @@ -175,19 +177,27 @@ the following options are available: .Bl -tag -width indent .It Fl a In addition to the default output, produce a line for each unpairable line -in both file 1 and file 2. +in both +.Ar file1 +and +.Ar file2 . .It Fl j1 Ar field Join on the .Ar field Ns 'th -field of file 1. +field of +.Ar file1 . .It Fl j2 Ar field Join on the .Ar field Ns 'th -field of file 2. +field of +.Ar file2 . .It Fl j Ar field Join on the .Ar field Ns 'th -field of both file 1 and file 2. +field of both +.Ar file1 +and +.Ar file2 . .It Fl o Ar list ... Historical implementations of .Nm @@ -195,16 +205,16 @@ permitted multiple arguments to the .Fl o option. These arguments were of the form -.Ql file_number.field_number +.Ar file_number . Ns Ar field_number as described for the current .Fl o option. This has obvious difficulties in the presence of files named -.Ql 1.2 . +.Pa 1.2 . .El .Pp -These options are available only so historic shellscripts do not require +These options are available only so historic shell scripts do not require modification and should not be used. .Sh SEE ALSO .Xr awk 1 , |