Tidying up df's line wraps on HP-UX

When running the df command on a HP-UX system, whenever a device in the first column has a long name the line will wrap. This initially makes the command unreliable if you're writing a script that reports on filesystem free space for example.

 $ df -lkP  
 Filesystem     1024-blocks Used Available Capacity Mounted on  
 /dev/vgrs710rsrid2/lvoldata2  
            858283043 676273843 182009200  79%  /data2  
 /dev/vgrs710rsrid2/lvoldata  
            199398672 118367215 81031457  60%  /data  
 /dev/vgrs710jnl/lvoljnl  
            152256633 77300832 74955801  51%  /journals  
 /dev/vgmsa2312t3/lvolmsadata3  
            1857692665 428977413 1428715252  24%  /data3  
 /dev/vgmsa2312t4/lvolmsadata4  
            1717106748 439950342 1277156406  26%  /data6  
 /dev/vgmsa2312t5/lvolmsadata5  
            1947765811 1871078336 76687475  97%  /data5  
 /dev/vg00/lvol4    1041520  93368  948152   9%  /home  
 /dev/vg00/lvol5    10482360 8147296 2335064  78%  /opt  
 /dev/vg00/lvol6    2088120  936752 1151368  45%  /tmp  
 /dev/vg00/lvol7    20934792 16264528 4670264  78%  /usr  
 /dev/vg00/lvol9    9831597  19038 9812559   1%  /var/opt/ignite/depots  
 /dev/vg00/lvol8    10422528 1068448 9354080  11%  /var  
 /dev/vg00/lvol1    522448  279624  242824  54%  /stand  
 /dev/vg00/lvol3    1044448  515952  528496  50%  /  

This can be fixed by piping the output through our old friend awk as follows;

 $ df -lkP | awk '{  
          if ( NR == 1 ) { next }  
          if ( NF == 6 ) { print }  
          if ( NF == 5 ) { next }  
          if ( NF == 1 ) {  
                getline record;  
                $0 = $0 record  
                print $0  
                  }  
          }'  

This bit of awk firstly discards the first header line from df and then in the case where a line has just 1 text field the next line is appended to it and then printed, any lines with 5 fields are also discarded.
This then produces a consistent df output;

 $ df -lkP | awk '{  
          if ( NR == 1 ) { next }  
          if ( NF == 6 ) { print }  
          if ( NF == 5 ) { next }  
          if ( NF == 1 ) {  
                getline record;  
                $0 = $0 record  
                print $0  
                  }  
          }'  
 /dev/vgrs710rsrid2/lvoldata2           858283043 676273843 182009200  79%  /data2  
 /dev/vgrs710rsrid2/lvoldata           199398672 118367215 81031457  60%  /data  
 /dev/vgrs710jnl/lvoljnl           152256633 77300832 74955801  51%  /journals  
 /dev/vgmsa2312t3/lvolmsadata3           1857692665 428977413 1428715252  24%  /data3  
 /dev/vgmsa2312t4/lvolmsadata4           1717106748 439950342 1277156406  26%  /data6  
 /dev/vgmsa2312t5/lvolmsadata5           1947765811 1871078336 76687475  97%  /data5  
 /dev/vg00/lvol4    1041520  93368  948152   9%  /home  
 /dev/vg00/lvol5    10482360 8147296 2335064  78%  /opt  
 /dev/vg00/lvol6    2088120  936752 1151368  45%  /tmp  
 /dev/vg00/lvol7    20934792 16264528 4670264  78%  /usr  
 /dev/vg00/lvol9    9831597  19038 9812559   1%  /var/opt/ignite/depots  
 /dev/vg00/lvol8    10422528 1068504 9354024  11%  /var  
 /dev/vg00/lvol1    522448  279624  242824  54%  /stand  
 /dev/vg00/lvol3    1044448  515952  528496  50%  /