Expression (if,while) get command exit code '{ }' to support redirection to /dev/null or no output at all

[c-pointer]

I don't know if it is bug or enhancement but

This works

if ( { ping -c 1 -w 1 192.168.0.1 } ) then
  echo "LAN is up"
endif

This does not works (works but redirection does not)

if ( { ping -c 1 -w 1 192.168.0.1 >& /dev/null } ) then
  echo "LAN is up"
endif

[suominen]

Alternative approaches:

ping -c 1 -w 1 192.168.0.1 >& /dev/null && echo "LAN is up"

or

ping -c 1 -w 1 192.168.0.1 >& /dev/null
if ( $? == 0 ) then
  echo "LAN is up"
endif

[zoulasc]

Should be fixed now. christos

…

On Nov 4, 2024, at 5:16 AM, Kimmo Suominen ***@***.***> wrote: Alternative approaches: ping -c 1 -w 1 192.168.0.1 >& /dev/null && echo "LAN is up" or ping -c 1 -w 1 192.168.0.1 >& /dev/null if ( $? == 0 ) then echo "LAN is up" endif — Reply to this email directly, view it on GitHub <#113 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAENP5PH7NYUAZPY5RQWK2TZ65COHAVCNFSM6AAAAABRCYWVZSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDINJUGMYTANRZHE>. You are receiving this because you are subscribed to this thread. <sanitizer.log>