diff --git a/src/subscript/legacy/runeclipse b/src/subscript/legacy/runeclipse
index 2e57aba85..10f265c3e 100755
--- a/src/subscript/legacy/runeclipse
+++ b/src/subscript/legacy/runeclipse
@@ -1,534 +1,47 @@
-#!/usr/bin/perl -w
-
-use strict;
-
-use Getopt::Std;
-use Cwd;
-
-use IO::File;
-
-# ------------------------------------------------------
-my $hostname           = `hostname`;
-my $_balance     = `date +%s`;
-
-$_balance = $_balance % 2;
-my $lisens = "7321\@eclipse1-lic-no.statoil.no:7321\@eclipse2-lic-no.statoil.no";
-if ($_balance == 1) {
-    $lisens = "7321\@eclipse2-lic-no.statoil.no:7321\@eclipse1-lic-no.statoil.no";
-}
-
-if (index($hostname, "stjohn-") == 0) {
-    $lisens = "7321\@stjohn-grid01.stjohn.statoil.no:$lisens";
-} elsif (index($hostname, "rio-") == 0) {
-    $lisens = "7321\@rio-grid01.rio.statoil.no:$lisens";
-}
-
-my $ecldir       = "/prog/res/ecl/grid";
-my $eclolddir    = "/prog/ecl/grid";
-my $ecltestdir   = "/prog/res/ecl/testgrid";
-my $mpiintelroot = "/prog/res/ecl/grid/tools/linux_x86_64/intel/mpi/2018.1.163";
-
-my $extconfig   = "macros/CONFIG.ECL";
-my $extmpirun64 = "tools/linux_x86_64/mpich_x86_64/bin/mpirun";
-
-my $config = "$ecldir/$extconfig";
-
-my $mpirun64 = "$ecldir/$extmpirun64";
-
-# -----------------------------------------------------
-
-my $arch64 = "x86_64Linux";    # bsub resource string for 64bit
-
-# ---------------------------------------------------
-
-my $que_name  = "daily";
-my $default_version = "2023.1";
-my $version   = `$ecldir/macros/eclrun --report-versions eclipse | xargs -n1 | sort -gr | head -1`;
-chomp($version);
-if (!$version) {$version = $default_version}
-my $memoryreq = 512;
-
-my $progname    = "eclipse";
-my $f64bit      = 0;
-my $span        = 0;
-my $interactive = 0;
-my $parallel    = 0;
-
-my $testversion = 0;
-
-my $scali       = 0;
-my $intelmpi    = 0;
-my $mpiextchmpi = "mpi";
-my $mpiextscali = "scampi";
-my $mpiextintel = "ilmpi";
-
-my $mpirunscali = "/opt/scali/bin/mpirun";
-my $mpirunintel = "$mpiintelroot/bin64/mpirun";
-
-my $mpiext = $mpiextchmpi;
-my $mpirun = $mpirun64;
-
-# ------------------------------------------------------
-
-
-
-sub find_number_of_processors;
-sub find_allocated_processors;
-sub build_batch;
-sub build_parallel_batch;
-sub submit_batch;
-sub in_error;
-
-my $workdir = cwd;
-
-my $scriptname = "runeclipse";
-
-my $usage =
-    "usage $scriptname  [-p program] [-q que_name] [-v version] [-x]  [-i] root";
-
-#
-# Get command line options:
-#
-
-my %options = ();
-
-getopts( "p:q:v:m:s:c:iLhx", \%options );
-
-if ( $options{h} ) {
-    print "$usage\n\n";
-    print "   program  is either eclipse or e300, default value: $progname\n";
-    print "   que_name is a LSF que name, default value: $que_name\n";
-    print "   version  is a valid ECLIPSE version, default: $version\n";
-    print "   -x       Force execution on single host for parallell runs\n";
-    print "   -i       Selects interactive execution\n";
-    exit;
-}
-
-if ( $options{p} )         { $progname  = $options{p}; }
-if ( $progname eq "e100" ) { $progname  = "eclipse" }
-if ( $options{q} )         { $que_name  = $options{q}; }
-if ( $options{v} )         { $version   = $options{v}; }
-if ( $options{m} )         { $memoryreq = $options{m}; }
-my $swapreq = $memoryreq;
-if ( $options{s} ) { $swapreq     = $options{s}; }
-if ( $options{x} ) { $span        = 1 }
-if ( $options{i} ) { $interactive = 1 }
-if ( $options{L} ) { $f64bit      = 1 }
-
-# Extract datafile name (and possibly working directory)
-#  from command line argument:
-
-my $rootname;
-
-my $numargs = @ARGV;
-if ( $numargs == 0 ) {
-    in_error("Missing root name,\n$usage\nFor help:$scriptname -h");
-}
-else {
-    my ($argname) = @ARGV;
-    $argname =~ s/\.DATA$//;
-    if ( $argname =~ /^(\/\S+\/)(\S+)$/ ) {
-        $workdir  = $1;
-        $rootname = $2;
-    }
-    elsif ( $argname =~ /^(\S+\/)(\S+)$/ ) {
-        $workdir  = $workdir . "/" . $1;
-        $rootname = $2;
-    }
-    else {
-        $rootname = $argname;
-    }
-}
-
-if ( !-f "$workdir/$rootname\.DATA" ) {
-    in_error("Datafile $workdir/$rootname\.DATA does not exist");
-}
-
-# Remove the files that marks the end of simulation (*.ECLEND and *.job.done):
-
-my $eclendfile  = "$workdir/$rootname\.ECLEND";
-my $eclendfile2 = "$workdir/$rootname\.job\.done";
-if ( -f $eclendfile ) {
-    unlink $eclendfile;
-}
-if ( -f $eclendfile2 ) {
-    unlink $eclendfile2;
-}
-
-#
-# Extract version year to be able to cater to changes in directory structure:
-#
-
-my $version_year = substr( $version, 0, 4 );
-
-# Check for parallel job
-
-$parallel = find_number_of_processors($rootname);
-my $local = 0;    # Local parallelinteractive job
-
-if ($parallel) {
-    if ( $version_year > 2010 ) {    # Use Intel MPI
-        $intelmpi = 1;
-        $mpirun   = $mpirunintel;
-        $mpiext   = $mpiextintel;
-    }
-    elsif ( $version_year > 2006 ) {    # Use SCALI
-	in_error("Parallel runs for version < 2011 is no longer supported, sorry");
-        $scali  = 1;
-        $mpirun = $mpirunscali;
-        $mpiext = $mpiextscali;
-    }
-    if ($interactive) {
-        my $allocproc = find_allocated_processors;
-        if ( $allocproc < $parallel ) {
-            if ($allocproc) {
-                in_error(
-"Mismath between LSF allocated processors ($allocproc) and processors needed by parallel Eclipse ($parallel)"
-                );
-            }
-            else {
-                $local = 1;
-                print "** Interactive parallel job: $parallel processors\n";
-
-        #                in_error("Unable to run parallel job as interactive") ;
-            }
-        }
-    }
-    $progname = "$progname" . "_" . $mpiext;
-}
-
-#
-# Test if executable exists. If not; try old then test installation:
-#
-
-my $exe64;
-
-$exe64 = "$ecldir/$version/bin/linux_x86_64/$progname.exe" ;
-
-if ( !-f $exe64 ) {
-    # Trying the old installation
-    $ecldir = $eclolddir;
-    $exe64  = "$ecldir/$version/bin/linux_x86_64/$progname.exe";
-    $config = "$ecldir/$extconfig";
-
-    if ($version_year < 2006) {
-	$exe64 = "$ecldir/$version/bin/linux/$progname.exe" ;
-    } else {
-	$exe64 = "$ecldir/$version/bin/linux_x86_64/$progname.exe" ;
-} ;
-
-}
-
-if ( !-f $exe64 ) {
-    # Trying the test installation
-    $ecldir = $ecltestdir;
-    $exe64  = "$ecldir/$version/bin/linux_x86_64/$progname.exe";
-    $config = "$ecldir/$extconfig";
-
-    if ( !-f $exe64 ) {
-        in_error("Executable $version does not exist");
-    }
-
-    $testversion = 1;
-}
-
-#
-# Forward stdout to rootname.OUT for versions 2019.3 and younger for consistency with eclrun
-# Symlink rootname.LOG -> rootname.OUT for backwards compatibility
-#
-
-my $stdout_file = "$rootname.LOG";
-if (($version_year > 2019 ) || ($version eq "2019.3" )) {
-    $stdout_file = "$rootname.OUT";
-    if ($interactive != 1){
-	symlink ($stdout_file, "$rootname.LOG");
-    }
-}
-
-#
-# Build batchfile:
-#
-
-my $batchfilename = "$workdir/$rootname" . ".job";
-
-if ($parallel) {
-    build_parallel_batch;
-}
-else {
-    build_batch;
-}
-
-#
-# Submit batchfile to que:
-#
-
-submit_batch();
-
-sub submit_batch {
-    my $bsub;
-    my $line;
-    my $nErrStr;
-
-    if ($interactive) {
-        $bsub = $batchfilename;
-        system($bsub);
-
-        if ( !open( ECLENDFILE, "<$eclendfile" ) ) {
-            in_error("Cannot open ECLEND file $eclendfile");
-        }
-        while ( $line = <ECLENDFILE> ) {
-            if ( index( $line, "Errors" ) != -1 ) {
-                $nErrStr = substr( $line, 20, 50 );
-            }
-        }
-        if ( $nErrStr > 0 ) {
-            exit 1;
-        }
-        else {
-            exit 0;
-        }
-    }
-    else {
-        my $architectures;
-        if ($f64bit) {
-            $architectures = $arch64;
-        }
-        else {
-            $architectures = "$arch64";
-        }
-        if ($parallel) {    # Submit parallel batch job:
-            if ($span) {
-                $bsub =
-"bsub -L /bin/csh -q $que_name -n $parallel -o $workdir/$stdout_file -J \"$progname $rootname\" -R \"select[$architectures] rusage[mem=$memoryreq:swap=$swapreq] same[type:model] span[hosts=1]\"  $batchfilename";
-            }
-            else {
-                $bsub =
-"bsub -L /bin/csh -q $que_name -n $parallel -o $workdir/$stdout_file -J \"$progname $rootname\" -R \"select[$architectures] rusage[mem=$memoryreq:swap=$swapreq] same[type:model]\"  $batchfilename";
-            }
-        }
-        else {              # Submit serial job:
-            $bsub =
-"bsub  -L /bin/csh -q $que_name -o $workdir/$stdout_file -J \"$progname $rootname\" -R \"select[$architectures] rusage[mem=$memoryreq:swap=$swapreq]\"  $batchfilename";
-        }
-        my $bsubmess = `$bsub`;
-
-        if ( $bsubmess =~ /Job <(\d+)>/ ) {
-            print "$1\n";
-        }
-        else {
-            print "-1\n";
-        }
-    }
-}
-
-sub find_number_of_processors {
-    my ($rootname) = @_;
-
-    my $datafilename = $workdir . "\/" . $rootname . ".DATA";
-    my $line;
-    my $found = 0;
-
-    if ( !open( DATAFIL, "<$datafilename" ) ) {
-        in_error("$scriptname: Cannot open DATA file $datafilename");
-    }
-    while ( $line = <DATAFIL> ) {
-        if ( $line =~ /^\s*PARALLEL/ ) {
-            $found = 1;
-            last;
-        }
-    }
-    if ($found) {
-        my $numproc;
-        $line = <DATAFIL>;
-        while ( $line =~ /^--/ ) {    # skip comment lines
-            $line = <DATAFIL>;
-        }
-        $line =~ s/^\s+//;            # Remove initial spaces
-        ($numproc) = split /\s+/, $line;    # Read first token
-        close(DATAFIL);
-        return $numproc;
-    }
-    else {
-        return find_number_of_slaves($datafilename)
-          ;                                 # Check for reservoir coupling
-
-    }
-}
-
-sub find_number_of_slaves {
-    my ($datafilename) = @_;
-    my $datafile = new IO::File;
-    if ( !$datafile->open("< $datafilename") ) {
-        in_error("Cannot open DATA file $datafilename");
-    }
-
-    my $line;
-    my $found = 0;
-
-    while ( !$found && ( $line = <$datafile> ) ) {
-
-        if ( $line =~ /^--/ ) { next; }
-        ;    # Skip comments
-
-        if ( $line =~ /^\s*SLAVES/ ) { $found = 1; }
-
-    }
-    if ($found) {
-        my $nslaves = 1;    # The master uses one processor
-        for ( $line = <$datafile> ; $line ; $line = <$datafile> ) {
-            if ( $line =~ /^\s*\// ) { last; }
-            if ( $line =~ /^\s*\S+\s+\S+\s+\S+\s+\S+\s+(\d+)\s*\// ) {
-                $nslaves = $nslaves + $1;
-            }
-            elsif ( $line =~ /^\s*\S+\s+\S+\s+\S+\s+\S+\s*\// ) {
-                $nslaves = $nslaves + 1;
-            }
-        }
-        return $nslaves;
-    }
-    else {
-        return 0;
-    }
-}
-
-sub find_allocated_processors {
-    my $numproc = 0;
-
-    if ( exists( $ENV{'LSB_MCPU_HOSTS'} ) ) {
-        my $allocstring = $ENV{'LSB_MCPU_HOSTS'};
-        while ( $allocstring =~ s/^\s*(\S+)\s+(\d+)// ) {
-            $numproc += $2;
-        }
-    }
-    return $numproc;
-}
-
-sub build_batch {
-    open( BATCHFIL, ">$batchfilename" )
-      or die "$scriptname: Cannot create batch file $batchfilename\n";
-
-    print BATCHFIL "#!/bin/sh \n";
-    if ($testversion) {
-        print BATCHFIL "echo \"*** RUNNING TEST VERSION $version ****\"\n";
-    }
-    print BATCHFIL "export SLBSLS_LICENSE_FILE=$lisens\n";
-    print BATCHFIL "export F_UFMTENDIAN=big\n";
-    print BATCHFIL "export ARCH=\`uname -m\`\n";
-    print BATCHFIL "cd $workdir\n";
-    print BATCHFIL "/bin/rm -f ECL.CFG\n";
-    print BATCHFIL "/bin/cp $config ./ECL.CFG 2>> $rootname" . ".ERR\n";
-    print BATCHFIL "executable=$exe64\n";
-    print BATCHFIL "\$executable <<END ";
-
-    if ($interactive) {
-        print BATCHFIL "\n";
-    }
-    else {
-        print BATCHFIL "> $stdout_file 2> $rootname.ERR\n";
-    }
-    print BATCHFIL "$rootname\n";
-    print BATCHFIL "$rootname\n";
-    print BATCHFIL "30000000\n";
-    print BATCHFIL "30000000\n";
-    print BATCHFIL "\$executable\n";
-    print BATCHFIL "END\n";
-    print BATCHFIL "mv -f $batchfilename ${batchfilename}.done\n";
-
-    if ($testversion) {
-        print BATCHFIL
-"echo \"*** NOTE THAT $version IS STILL A TEST VERSION IN Equinor ****\"\n";
-    }
-
-    close(BATCHFIL);
-    chmod( 0770, $batchfilename );
-}
-
-sub build_parallel_batch {
-    open( BATCHFIL, ">$batchfilename" )
-      or die "$scriptname: Cannot create batch file $batchfilename\n";
-
-    print BATCHFIL "#!/bin/sh \n";
-    print BATCHFIL "export SLBSLS_LICENSE_FILE=$lisens\n";
-
-    #    print BATCHFIL
-    #        "export FLEXLM_NO_CKOUT_INSTALL_LIC=1\n" ;
-
-    print BATCHFIL "export ECLARCH=$ecldir\n";
-    print BATCHFIL "export F_UFMTENDIAN=big\n";
-    print BATCHFIL "export P4_RSHCOMMAND=ssh\n";    # Variable used by mpi
-    print BATCHFIL "export ARCH=\`uname -m\`\n";
-    print BATCHFIL "/bin/rm -f ECL.CFG\n";
-    print BATCHFIL "cd $workdir\n";
-    print BATCHFIL "/bin/cp $config ./ECL.CFG 2>> $rootname" . ".ERR\n";
-    print BATCHFIL "executable=$exe64\n";
-    print BATCHFIL "mpicommand=$mpirun\n";
-
-    if ($intelmpi) {
-        print BATCHFIL "export I_MPI_ROOT=$mpiintelroot/\n";
-        print BATCHFIL "export PATH=$mpiintelroot/bin64:\$PATH\n";
-        print BATCHFIL
-"export LD_LIBRARY_PATH=$mpiintelroot/lib64:$ecldir/$version/lib/linux_x86_64:\$LD_LIBRARY_PATH\n";
-    }
-    elsif ($scali) {
-        print BATCHFIL
-"export LD_LIBRARY_PATH=$ecldir/$version/lib/linux_x86_64:/opt/scali/lib64\n";
-    }
-    else {
-        print BATCHFIL
-          "export LD_LIBRARY_PATH=$ecldir/$version/lib/linux_x86_64\n";
-    }
-    print BATCHFIL "machinefile=$rootname.mpi.\$\$\n";
-
-    if ( !$local ) {
-
-        print BATCHFIL "((tnum=0))\n";
-        print BATCHFIL "for ((num=1 ; tnum<$parallel ; num++)) ; do\n";
-        print BATCHFIL "   ((nhost = 2*num - 1))\n";
-        print BATCHFIL "   ((nnum  = 2*num))\n";
-        print BATCHFIL
-          "   thishost=\`echo \$LSB_MCPU_HOSTS | cut -f\$nhost -d\" \"\`\n";
-        print BATCHFIL
-          "   thisnum=\`echo \$LSB_MCPU_HOSTS | cut -f\$nnum -d\" \"\`\n";
-        print BATCHFIL "   for ((mnum=0 ; mnum<\$thisnum ; mnum++)) ; do\n";
-        print BATCHFIL "      if ((num==1 && mnum==0)) ; then\n";
-        print BATCHFIL "         echo \$thishost > \$machinefile\n";
-        print BATCHFIL "      else\n";
-        print BATCHFIL "         echo \$thishost >> \$machinefile\n";
-        print BATCHFIL "      fi\n";
-        print BATCHFIL "   done\n";
-        print BATCHFIL "   ((tnum=tnum+thisnum))\n";
-        print BATCHFIL "done\n";
-    }
-
-    if ($local) {
-        print BATCHFIL "\$mpicommand -np $parallel \$executable $rootname \n";
-    }
-    elsif ($interactive) {
-        print BATCHFIL
-"\$mpicommand -machinefile \$machinefile -np $parallel \$executable $rootname \n";
-    }
-    else {
-        print BATCHFIL
-"\$mpicommand -machinefile \$machinefile -np $parallel \$executable $rootname > $stdout_file 2> $rootname.ERR \n";
-    }
-    print BATCHFIL "rm -f \$machinefile\n";
-    print BATCHFIL "if [ -f ECL.CFG ] ; then\n";
-    print BATCHFIL "   rm ECL.CFG\n";
-    print BATCHFIL "fi\n";
-    print BATCHFIL "mv -f $batchfilename ${batchfilename}.done\n";
-
-    close(BATCHFIL);
-    chmod( 0770, $batchfilename );
-}
-
-sub in_error {
-    my ($message) = @_;
-
-    if ($interactive) {
-        print "ERROR $scriptname: $message\n";
-    }
-    else {
-        print "-1\n";
-    }
-    exit 1;
-}
+#!/bin/bash
+
+echo "runeclipse (from subscript) is deprecated. Instead you should use 'eclrun'."
+
+
+env | grep -q ECLPATH || (echo "For eclrun to work, you must 'source /prog/res/ecl/script/eclrun.cshrc'" && exit 1)
+
+
+version_setup=""
+queue_setup="-q normal "
+program="eclipse"
+while [[ $# -gt 0 ]]; do
+  case $1 in 
+    -p)
+      program=$2
+      shift
+      shift
+      ;;
+    -i)
+      queue_setup=""
+      shift
+      ;;
+    -v)
+      version_setup="-v $2 "
+      shift
+      shift
+      ;;
+    -x)
+      # Assume span is 1 by default in onprem LSF
+      shift
+      ;;
+    -q)
+      queue_setup="-q $2 "
+      shift
+      shift
+      ;;
+    *)
+      datafile=$1
+      shift
+      ;;
+  esac
+done
+
+echo
+echo "Equivalent command using eclrun:"
+echo
+echo "> eclrun ${queue_setup}${version_setup}${program} ${datafile}"