/usr/share/abinit/psp/20ca.2.hgh is in abinit-data 7.8.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 | Hartwigsen-Goedecker-Hutter psp for Ca, from PRB58, 3641 (1998)
20 2 010605 zatom,zion,pspdat
3 1 2 0 2001 0 pspcod,pspxc,lmax,lloc,mmax,r2well
0.800000 0.000000 0.000000 0.000000 0.000000 rloc, c1, c2, c3, c4
0.669737 1.645014 1.523491 0.295996 rs, h11s, h22s, h33s
0.946474 0.585479 0.126329 0.000000 rp, h11p, h22p, h33p
-0.003362 0.012779 0.000000 k11p, k22p, k33p
0.526550 -3.032321 0.000000 0.000000 rd, h11d, h22d, h33d
0.000814 0.000000 0.000000 k11d, k22d, k33d
0.000000 0.000000 0.000000 0.000000 rf, h11f, h22f, h33f
0.000000 0.000000 0.000000 k11f, k22f, k33f
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