Hello, Would like to report the following:
########################################################################### Configuration Information [Automatically generated, do not change]: Machine: ia64 OS: hpux11.31 Compiler: cc Compilation CFLAGS: -O -I/usr/local/include -D_XOPEN_SOURCE_EXTENDED +DD64 uname output: HP-UX sovmh352 B.11.31 U ia64 1429105484 unlimited-user license Machine Type: ia64-hp-hpux11.31 Bash Version: 5.1 Patch Level: 8 Release Status: release Description: When a regex matches inside [[ ]] it results in a malloc error. Whereas if it doesn't you get expected behavior. Take the code below: ---------------------------------------------------------------------------------- #!/usr/bin/env bash text="123 text!" if [[ "$text" =~ "123" ]]; then printf "'123' in '$text'\n" else printf "'123' not in '$text'\n" fi ---------------------------------------------------------------------------------- You will receive: ---------------------------------------------------------------------------------- malloc: shmatch.c:115: assertion botched free: start and end chunk sizes differ Aborting...ABORT instruction (core dumped) ---------------------------------------------------------------------------------- On the other hand the code below works as expected: ---------------------------------------------------------------------------------- #!/usr/bin/env bash text="123 text!" if [[ "$text" =~ "zzz" ]]; then printf "'zzz' in '$text'\n" else printf "'zzz' not in '$text'\n" fi ---------------------------------------------------------------------------------- You will receive: ---------------------------------------------------------------------------------- 'zzz' not in '123 text!' ---------------------------------------------------------------------------------- Repeat-By: fails.sh: ---------------------------------------------------------------------------------- text="123 text!" if [[ "$text" =~ "123" ]]; then printf "'123' in '$text'\n" else printf "'123' not in '$text'\n" fi ---------------------------------------------------------------------------------- Then execute: bash fails.sh ########################################################################### Let me know if you need anything else. Best wishes, Gyorgy