New xorriso-dd-target option -version

xorriso-dd-target/xorriso-dd-target

@@ -14,6 +14,10 @@
 # if $no_xorriso_dd_target_run is empty. It implements what xdt_print_usage
 # announces.
 
+xdt_print_version() {
+  echo "xorriso-dd-target , version 1.5.3 , 2020.01.06.204949"
+}
+
 
 ## This obtrusive setting shall make the script safe against exotic locales.
 ## Supposed to stabilize grep expression interpretation and error messages.
@@ -135,6 +139,7 @@ xdt_print_usage() {
   echo "                    -dummy -DO_WRITE even against the advice of"
   echo "                    this program. This probably shows you ways to"
   echo "                    shoot your own foot."
+  echo " -version           Print version text and then end the program."
   echo " -help              Print this text to stdout and then end the program."
   echo "Examples:"
   echo " $0 -with_sudo -list_all"
@@ -219,6 +224,7 @@ xdt_reset_job() {
   # Status
   xdt_sudo_cmd=
   xdt_have_su_power=
+  xdt_end_after_setup=
 
   return 0
 }
@@ -319,9 +325,15 @@ xdt_arg_interpreter() {
     elif test "X$xdt_i" = "X-no_pacifier"
     then
       xdt_no_pacifier=y
+    elif test "X$xdt_i" = "X-version"
+    then
+      xdt_print_version
+      xdt_end_after_setup=y
+      return 0
     elif test "X$xdt_i" = "X-help"
     then
       xdt_print_usage
+      xdt_end_after_setup=y
       return 0
     elif echo "X$xdt_i" | grep -v '^X-' >/dev/null
     then
@@ -865,6 +877,10 @@ xdt_main()
   
   xdt_reset_job
   xdt_arg_interpreter "$@" || return "$?"
+  if test -n "$xdt_end_after_setup"
+  then
+    return 0
+  fi
   
   if test -n "$xdt_do_plug_test"
   then

xorriso-dd-target/xorriso-dd-target.1

@@ -507,6 +507,10 @@ If a single device name is given, do a run of \-dummy \-DO_WRITE even against
 the advice of this program. This probably shows you ways to shoot your own
 foot.
 .TP
+\fB\-version\fR
+Print the program name, version text, and timestamp to stdout and then end
+the program.
+.TP
 \fB\-help\fR
 Print the help text to stdout and then end the program.
 .SH EXAMPLES

xorriso-dd-target/xorriso-dd-target.info

@@ -400,6 +400,9 @@ File: xorriso-dd-target.info,  Node: Options,  Next: Examples,  Prev: Overview,
      If a single device name is given, do a run of -dummy -DO_WRITE even
      against the advice of this program.  This probably shows you ways
      to shoot your own foot.
+-version
+     Print the program name, version text, and timestamp to stdout and
+     then end the program.
 -help
      Print the help text to stdout and then end the program.
 
@@ -484,7 +487,7 @@ File: xorriso-dd-target.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal
 * -DO_WRITE write image file to device:  Options.              (line 48)
 * -dummy report but do not perform:      Options.              (line 59)
 * -dummy_force show raw copy commands:   Options.              (line 61)
-* -help print help text to stdout:       Options.              (line 65)
+* -help print help text to stdout:       Options.              (line 68)
 * -image_file set path of disk image file: Options.            (line 45)
 * -list_all print list of disk devices:  Options.              (line 15)
 * -list_long print extra device info:    Options.              (line 18)
@@ -493,6 +496,7 @@ File: xorriso-dd-target.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal
 * -min_size set size limit for device:   Options.              (line 29)
 * -no_pacifier do not show dd progress:  Options.              (line 55)
 * -plug_test detect target device plugging: Options.           (line  7)
+* -version print version text to stdout: Options.              (line 65)
 * -with_sudo run lsblk, umount, dd by sudo: Options.           (line 38)
 * -with_vendor_model add drive info to advice: Options.        (line 22)
 
@@ -514,7 +518,7 @@ File: xorriso-dd-target.info,  Node: ConceptIdx,  Next: Top,  Prev: CommandIdx,
 * disk image file, set path, -image_file: Options.             (line 45)
 * disk image file, write to device, -DO_WRITE: Options.        (line 48)
 * Drive info, add to advice, -with_vendor_model: Options.      (line 22)
-* help text, print to stdout, -help:     Options.              (line 65)
+* help text, print to stdout, -help:     Options.              (line 68)
 * ISO 9660, demand presence on target, -look_for_iso: Options. (line 33)
 * lsblk, umount, dd, run by sudo, -with_sudo: Options.         (line 38)
 * only report, do not perform, -dummy:   Options.              (line 59)
@@ -529,6 +533,7 @@ File: xorriso-dd-target.info,  Node: ConceptIdx,  Next: Top,  Prev: CommandIdx,
 * Use case, show commands for writing to a not advised device: Unwise.
                                                                (line  6)
 * Use case, write image to an advised device: Dowrite.         (line  6)
+* version text, print to stdout, -version: Options.            (line 65)
 * xorriso-dd-target, options:            Options.              (line  6)
 
 
@@ -544,12 +549,12 @@ Node: Dowrite7954
 Node: Unwise9097
 Node: Reasons10637
 Node: Options13218
-Node: Examples16208
-Node: Files16381
-Node: Seealso16539
-Node: Bugreport16705
-Node: Legal17292
-Node: CommandIdx17996
-Node: ConceptIdx19189
+Node: Examples16315
+Node: Files16488
+Node: Seealso16646
+Node: Bugreport16812
+Node: Legal17399
+Node: CommandIdx18103
+Node: ConceptIdx19369
 
 End Tag Table

xorriso-dd-target/xorriso-dd-target.texi

@@ -649,6 +649,12 @@ If a single device name is given, do a run of -dummy -DO_WRITE even against
 the advice of this program. This probably shows you ways to shoot your own
 foot.
 @c man .TP
+@item -version
+@kindex -version  print version text to stdout
+@cindex version text, print to stdout, -version
+Print the program name, version text, and timestamp to stdout and then end
+the program.
+@c man .TP
 @item -help
 @kindex -help   print help text to stdout
 @cindex help text, print to stdout, -help