Files
lbmk/util/sbase/tail.1
Leah Rowe e9a910b33c config/git: import suckless sbase
i currently use the output of sha512sum in several
places of xbmk, which is a bit unreliable in case
output changes.

other cases where i use util outputs in variables
are probably reliable, because i'm using mostly
posix utilities in those.

to mitigate this, i now import suckless sbase, which
has a reasonable sha512sum implementation.

*every* binary it builds is being placed in build.list,
because i'll probably start using more of them.

for example, i may start modifying the "date"
implementation, adding the GNU-specific options that
i need as mentioned on init.sh

i'm importing it in util/ because the sha512sum
util is needed for verifying project sources, so
if sbase itself is a "project source", that means
we can into a chicken and egg bootstrapping problem.

this is sbase at revision:
055cc1ae1b3a13c3d8f25af0a4a3316590efcd48

Signed-off-by: Leah Rowe <leah@libreboot.org>
2025-10-04 09:20:12 +01:00

52 lines
833 B
Groff

.Dd October 8, 2015
.Dt TAIL 1
.Os sbase
.Sh NAME
.Nm tail
.Nd display final lines of files
.Sh SYNOPSIS
.Nm
.Op Fl f
.Op Fl c Ar num | Fl m Ar num | Fl n Ar num | Fl Ns Ar num
.Op Ar file ...
.Sh DESCRIPTION
.Nm
writes the last 10 lines of each
.Ar file
to stdout.
If no
.Ar file
is given,
.Nm
reads from stdin.
.Sh OPTIONS
.Bl -tag -width Ds
.It Fl c Ar num | Fl m Ar num | Fl n Ar num | Fl Ns Ar num
Display final
.Ar num
bytes | characters | lines | lines.
If
.Ar num
begins with '+'
it is an offset from the beginning of each
.Ar file .
If
.Ar num
begins with '-' it is as if no sign was given.
The default is 10 lines.
.It Fl f
If one
.Ar file
is specified, append lines to output as
.Ar file
grows.
.El
.Sh SEE ALSO
.Xr head 1
.Sh STANDARDS
POSIX.1-2013.
.Pp
The
.Op Fl Ns Ar num
syntax is an extension to that specification.