Package: ksh Version: 93u+20120801-2 Severity: normal The following command works fine:
ksh93 -c 'tless() { less; }; echo foo | tless' However, if I do the samek thing in an interactive shell, this no longer works: $ tless() { less; }; echo foo | tless hangs with ksh93 taking 100% CPU time and less taking 70% CPU time. There is no such problem with other shells, including mksh. -- System Information: Debian Release: stretch/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 4.6.0-1-amd64 (SMP w/8 CPU cores) Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages ksh depends on: ii binfmt-support 2.1.6-1 ii libc6 2.23-2 ksh recommends no packages. ksh suggests no packages. -- no debconf information