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What is the difference between the $PATH variables?

AndreyVolk

This applies to different instruments, but in the example of SPECTRE.
in bash environment $PATH variable is setting
1)
export MMSIMHOME=$CADHOME/SPECTRE16
export PATH=$PATH:$MMSIMHOME/tools/bin

2)
export MMSIMHOME=$CADHOME/SPECTRE16
export PATH=$PATH:$MMSIMHOME/bin

In both cases, everything seems to work.
But in the first case
.......
lrwxrwxrwx. 1 root root 22 Aug 15 11:12 spectre -> ../spectre/bin/spectre
lrwxrwxrwx. 1 root root 30 Aug 15 11:12 spectre_encrypt -> ../spectre/bin/spectre_encrypt
lrwxrwxrwx. 1 root root 27 Aug 15 11:12 spectre_root -> ../spectre/bin/spectre_root
lrwxrwxrwx. 1 root root 21 Aug 15 11:12 spectremdl -> ../mdl/bin/spectremdl
lrwxrwxrwx. 1 root root 28 Aug 15 11:12 spectreserver -> ../spectre/bin/spectreserver
lrwxrwxrwx. 1 root root 22 Aug 15 11:12 spfchecker -> ../emir/bin/spfchecker
lrwxrwxrwx. 1 root root 22 Aug 15 11:12 spicevisionpro -> ../SpiceVision/wrapper
lrwxrwxrwx. 1 root root 19 Aug 15 11:12 sptr -> ../spectre/bin/sptr
lrwxrwxrwx. 1 root root 21 Aug 15 11:12 tbl2macro -> ../emir/bin/tbl2macro
lrwxrwxrwx. 1 root root 20 Aug 15 11:12 temir -> ../spectre/bin/temir
lrwxrwxrwx. 1 root root 24 Aug 15 11:12 ultrasim -> ../ultrasim/bin/ultrasim
lrwxrwxrwx. 1 root root 26 Aug 15 11:12 ultrasim32 -> ../ultrasim/bin/ultrasim32
lrwxrwxrwx. 1 root root 26 Aug 15 11:12 ultrasim64 -> ../ultrasim/bin/ultrasim64
lrwxrwxrwx. 1 root root 24 Aug 15 11:12 uricheck -> ../relxpert/bin/uricheck
lrwxrwxrwx. 1 root root 24 Aug 15 11:12 usimEmirUtil -> ../emir/bin/usimEmirUtil
lrwxrwxrwx. 1 root root 26 Aug 15 11:12 usimEmirUtil32 -> ../emir/bin/usimEmirUtil32
lrwxrwxrwx. 1 root root 26 Aug 15 11:12 usimEmirUtil64 -> ../emir/bin/usimEmirUtil64
lrwxrwxrwx. 1 root root 27 Aug 15 11:12 usimtap2pti -> ../ultrasim/bin/usimtap2pti
lrwxrwxrwx. 1 root root 29 Aug 15 11:12 usimtap2pti32 -> ../ultrasim/bin/usimtap2pti32
lrwxrwxrwx. 1 root root 29 Aug 15 11:12 usimtap2pti64 -> ../ultrasim/bin/usimtap2pti64
lrwxrwxrwx. 1 root root 18 Aug 15 11:12 xps -> ../spectre/bin/xps
lrwxrwxrwx. 1 root root 19 Aug 15 11:12 xpss -> ../spectre/bin/xpss

In the second case, this is a link to only one file.
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 spectre -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 spectre_encrypt -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 spectre_root -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 spectremdl -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 spectreserver -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 spfchecker -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 spicevisionpro -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 sptr -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 28 Aug 15 11:12 srrversion -> ../share/dfII/bin/srrversion
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 tbl2macro -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 temir -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 ultrasim -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 ultrasim32 -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 ultrasim64 -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 uricheck -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 usimEmirUtil -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 usimEmirUtil32 -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 usimEmirUtil64 -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 usimtap2pti -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 usimtap2pti32 -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 usimtap2pti64 -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 xps -> .cdnWrapperIndep
lrwxrwxrwx. 1 root root 16 Aug 15 11:12 xpss -> .cdnWrapperIndep

Which setting is more correct?

  • Andrew Beckett

    I freed your post from moderation (lots of repeated words in the directory listing caused the system to think it was spam, which it isn't).

    You should be able to use either. Historically there was no consistency in the path settings between different release streams, but we've been gradually standardising on the <instDir>/bin approach.

    Don't worry about what the links go to - the common wrapper knows how it's been called. so will work in either case.

    Regards,

    Andrew.

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