[Tcsh] How is merge in savehist supposed to work?

[Dr. Werner Fink]

On 2023/07/13 10:51:08 +0200, Dr. Werner Fink wrote:
> Hi
> 
> after a report of a user I've done a small test case to show the
> problem:
> 
>  boole:~ # useradd -m -s /bin/tcsh c1
>  boole:~ # vi /home/c1/.tcshrc
>  boole:~ # cat /home/c1/.tcshrc
>  set histdup=prev
>  set history=8
>  set savehist=($history merge lock)
>  boole:~ # su - c1
>  boole /home/c1> touch m1
>  boole /home/c1> touch m2
>  boole /home/c1> touch m3
>  boole /home/c1> touch m4
>  boole /home/c1> touch m5
>  boole /home/c1> touch m6
>  boole /home/c1> touch m7
>  boole /home/c1> touch m8
>  boole /home/c1> logout
>  boole:~ # su - c1
>  boole /home/c1> cat m1
>  boole /home/c1> cat m2
>  boole /home/c1> cat m3
>  boole /home/c1> cat m4
>  boole /home/c1> cat m5
>  boole /home/c1> cat m6
>  boole /home/c1> cat m7
>  boole /home/c1> cat m8
>  boole /home/c1> logout
>  boole:~ # cat /home/c1/.history 
>  boole:~ # cat /home/c1/.history 
>  #+1689237920
>  touch m1
>  #+1689237921
>  touch m2
>  #+1689237922
>  touch m3
>  #+1689237923
>  touch m4
>  #+1689237924
>  touch m5
>  #+1689237925
>  touch m6
>  #+1689237926
>  touch m7
>  #+1689237927
>  touch m8
> 
> ... looks like `merge` does not work to get the recent history
> 
> Werner

the attached patch seems to solve the problem

Werner

-- 
  "Having a smoking section in a restaurant is like having
          a peeing section in a swimming pool." -- Edward Burr
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