Threads for kn | Lobsters

2

gecko 8 days ago | link | on: What are you doing this weekend?

Taking a break. It’s the weekend. Give yourself a moment away from the computer.
1. 1
  
  kn 8 days ago | link
  
  Yup.
  
  Instead of hacking yesterday, I made lemonade and went swimming in a beautiful, quiet lake just to take nap on the grass afterwards - refreshing af.

2
kn 18 days ago | link | on: Pure Bash Bible: A collection of pure bash alternatives to external binaries
Lots of things can already be done with portable sh code. typeset for example is quite powerful but mentioned nowhere in the repo:
```
$ var=VaL; typeset -l lvar=$var; typeset -u uvar=$var
$ echo $lvar $uvar
val VAL
```
In fact, this builtin is often wrapped by the shell itself, at least in OpenBSD’s ksh:
```
$ alias | fgrep typeset
autoload='typeset -fu'
functions='typeset -f'
integer='typeset -i'
local=typeset
```
1. 2
  izabera 18 days ago | link
  typeset is not posix
  
  posix sh has no way to do what typeset -f does
  
  bash has no way to do what typeset -fu does in your ksh
  
  typeset -i doesn’t really have the same effect in bash and ksh
  
  the posix way to convert a string to lowercase/uppercase involves tr or awk
  
  most popular shells support local, but it’s not posix either
  
  “portable sh code” != “it works on my openbsd”
  1. 1
    
    kn 18 days ago | link
    
    Note how I did not speak of POSIX; you mistake the ksh example as general assumption. My reply to pl’s comment tells you what I meant with “portable” (admittedly, wording was a bit misleading).
    1. 1
      
      izabera 17 days ago | link
      
      what’s your definition of portable?
2. 1
  
  pl 18 days ago | link
  
  What do you mean with portable sh code? I just tried it with dash and it has no typeset built in.
  1. 2
    
    kn 18 days ago | link
    
    At least available in Bourne and Korn shell derivatives; (Debian’s) Almquist Shell does not implement that particular builtin.