I really fell in love with this site: sed - 20 examples to remove / delete characters from a file .
To remove first character only if it is a specific character:
$ sed 's/^F//' file > file.new
Pretty cool when you need to deal with 10 000 incompatible ways to comment in Fortran.
Also, one Fortran note to self:
To fix deprecated assign to and go to:
(a) change each of the ASSIGN N TO NEXT (where N is some number) statement to a simple NEXT = N statement (where N is the same number), and
(b) replace each of the GO TO NEXT, (x, y, z, ...) statement with the following computed goto statement
GO TO (1,2,3,4,5,6,7,8,9,10,11) NEXT
To remove first character only if it is a specific character:
$ sed 's/^F//' file > file.new
Pretty cool when you need to deal with 10 000 incompatible ways to comment in Fortran.
Also, one Fortran note to self:
To fix deprecated assign to and go to:
(a) change each of the ASSIGN N TO NEXT (where N is some number) statement to a simple NEXT = N statement (where N is the same number), and
(b) replace each of the GO TO NEXT, (x, y, z, ...) statement with the following computed goto statement
GO TO (1,2,3,4,5,6,7,8,9,10,11) NEXT
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