Configuration Information: Machine: x86_64 OS: linux-gnu Compiler: gcc Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-pc-linux-gnu' -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL -DHAVE_CONFIG_H -I. -I../bash -I../bash/include -I../bash/lib -g -O2 -Wall uname output: Linux alexk 2.6.32-gg173-generic #gg173 SMP Wed Jun 23 05:24:15 UTC 2010 x86_64 GNU/Linux Machine Type: x86_64-pc-linux-gnu Bash Version: 4.1 Patch Level: 5 Release Status: release
Description: The following script used to work in bash 3.2 but does not work with bash 4.x (I tried 4.0, 4.1.5, and 4.1.7) ------ #!/bin/bash a=$(/bin/cat << EOF | wc -l a b EOF ) ----- /tmp/bug.sh: line 3: unexpected EOF while looking for matching `)' /tmp/bug.sh: line 8: syntax error: unexpected end of file The following works correctly (changed /bin/cat to cat): ------ #!/bin/bash a=$(cat << EOF | wc -l a b EOF ) ----- and so does this (removed | wc -l): ------ #!/bin/bash a=$(/bin/cat << EOF a b EOF ) -----