X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=guestfish.pod;h=28daa0abdf40247519533c21d43b54742cc7c05d;hp=e3e9c14d903bc5ae8df2f0cd674f6001eaaae6db;hb=9c662c7ea543ca5bc9ffae45283e92db7ba68e1f;hpb=21ba59ce3cbc594ce9c7aeecd4dadb8430e4042d

diff --git a/guestfish.pod b/guestfish.pod
index e3e9c14..28daa0a 100644
--- a/guestfish.pod
+++ b/guestfish.pod
@@ -18,7 +18,7 @@ Create a new C</etc/motd> file in a guest:
  add disk.img
  run
  mount /dev/VolGroup00/LogVol00 /
- upload new_motd /etc/motd
+ write_file /etc/motd "Hello users" 0
  _EOF_
 
 List the LVs in a guest:
@@ -97,6 +97,11 @@ automatically launched.
 Disable autosync.  This is enabled by default.  See the discussion
 of autosync in the L<guestfs(3)> manpage.
 
+=item B<-r> | B<--ro>
+
+This changes the C<-m> option so that mounts are done read-only
+(see C<guestfs_mount_ro> in the L<guestfs(3)> manpage).
+
 =item B<-v> | B<--verbose>
 
 Enable very verbose messages.  This is particularly useful if you find
@@ -156,6 +161,58 @@ The only exception is that if the C<-m> or C<--mount> option was
 given, the guest is automatically run for you (simply because
 guestfish can't mount the disks you asked for without doing this).
 
+=head1 QUOTING
+
+You can quote ordinary parameters using either single or double
+quotes.  For example:
+
+ add "file with a space.img"
+
+ rm '/file name'
+
+ rm '/"'
+
+A few commands require a list of strings to be passed.  For these, use
+a space-separated list, enclosed in quotes.  For example:
+
+ vgcreate VG "/dev/sda1 /dev/sdb1"
+
+=head1 COMMENTS
+
+Any line which starts with a I<#> character is treated as a comment
+and ignored.  The I<#> can optionally be preceeded by whitespace,
+but B<not> by a command.  For example:
+
+ # this is a comment
+         # this is a comment
+ foo # NOT a comment
+
+Blank lines are also ignored.
+
+=head1 RUNNING COMMANDS LOCALLY
+
+Any line which starts with a I<!> character is treated as a command
+sent to the local shell (C</bin/sh> or whatever L<system(3)> uses).
+For example:
+
+ !mkdir local
+ tgz-out /remote local/remote-data.tar.gz
+
+will create a directory C<local> on the host, and then export
+the contents of C</remote> on the mounted filesystem to
+C<local/remote-data.tar.gz>.  (See C<tgz-out>).
+
+=head1 EXIT ON ERROR BEHAVIOUR
+
+By default, guestfish will ignore any errors when in interactive mode
+(ie. taking commands from a human over a tty), and will exit on the
+first error in non-interactive mode (scripts, commands given on the
+command line).
+
+If you prefix a command with a I<-> character, then that command will
+not cause guestfish to exit, even if that (one) command returns an
+error.
+
 =head1 COMMANDS
 
 =head2 help
@@ -170,18 +227,6 @@ parameter, this displays detailed help for a command.
 
 This exits guestfish.  You can also use C<^D> key.
 
-=head2 add | drive | add-drive
-
- add filename
-
-This adds a block device to be examined or modified.
-
-=head2 cdrom | add-cdrom
-
- cdrom iso-file
-
-This adds a CD-ROM device to be examined.
-
 =head2 alloc | allocate
 
  alloc filename size
@@ -195,14 +240,10 @@ Size can be specified (where C<nn> means a number):
 
 =over 4
 
-=item C<nn>
+=item C<nn> or C<nn>K or C<nn>KB
 
 number of kilobytes, eg: C<1440> = standard 3.5in floppy
 
-=item C<nn>K or C<nn>KB
-
-number of kilobytes
-
 =item C<nn>M or C<nn>MB
 
 number of megabytes
@@ -217,9 +258,34 @@ number of 512 byte sectors
 
 =back
 
-=head2 launch | run
+=head2 echo
+
+ echo [params ...]
+
+This echos the parameters to the terminal.
+
+=head2 edit | vi | emacs
+
+ edit filename
+
+This is used to edit a file.  It downloads the file, edits it
+locally using your editor, then uploads the result.
+
+The editor is C<$EDITOR>.  However if you use the alternate
+commands C<vi> or C<emacs> you will get those corresponding
+editors.
+
+NOTE: This will not work reliably for large files
+(> 2 MB) or binary files containing \0 bytes.
+
+=head2 lcd
 
-Launch the guest so that you can issue other commands (see below).
+ lcd directory
+
+Change the local directory, ie. the current directory of guestfish
+itself.
+
+Note that C<!cd> won't do what you might expect.
 
 @ACTIONS@
 
@@ -237,12 +303,37 @@ same effect as using the B<-v> option.
 Set the path that guestfish uses to search for kernel and initrd.img.
 See the discussion of paths in L<guestfs(3)>.
 
+=item LIBGUESTFS_QEMU
+
+Set the default qemu binary that libguestfs uses.  If not set, then
+the qemu which was found at compile time by the configure script is
+used.
+
+=item LIBGUESTFS_APPEND
+
+Pass additional options to the guest kernel.
+
+=item HOME
+
+If compiled with GNU readline support, then the command history
+is saved in C<$HOME/.guestfish>
+
+=item EDITOR
+
+The C<edit> command uses C<$EDITOR> as the editor.  If not
+set, it uses C<vi>.
+
 =back
 
+=head1 EXIT CODE
+
+guestfish returns I<0> if the commands completed without error, or
+I<1> if there was an error.
+
 =head1 SEE ALSO
 
 L<guestfs(3)>,
-L<http://et.redhat.com/~rjones/libguestfs>.
+L<http://libguestfs.org/>.
 
 =head1 AUTHORS
 
@@ -251,7 +342,7 @@ Richard W.M. Jones (C<rjones at redhat dot com>)
 =head1 COPYRIGHT
 
 Copyright (C) 2009 Red Hat Inc.
-L<http://et.redhat.com/~rjones/libguestfs>
+L<http://libguestfs.org/>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by