document that read built-in can't return zero-length string in the middle of input

Dear. I needed to read 16 bytes from a binary file and tried to replace a hexdump call with read built-in. I expected that with "-N1" if a NUL character is encountered bash would assign an empty string, however there's no indication that a NUL character was there and it simply assigns the next

substitution read all from fd silently fails: $(0)

Hi list. Want to read whole stdin into variable. Don't want to spawn new processes (cat). Don't want to reopen existing fd 0 First thing I tried: $(0) It silently returns an empty string. From bash manual: The command substitution $(cat file) can be replaced by the equivalent but faster $(

Re[2]: ~/.bashrc not sourced for ssh commands on Archlinux

On Wed, Apr 24, 2013 at 7:31 AM, Ilya Basin [1]basini...@gmail.com wrote: Hi. $ cat ~/.bashrc # # ~/.bashrc # echo Im in .bashrc 2 RHEL 6.0, bash 4.1.2 $ ssh localhost 'ps -f $$ true' Im in .bashrc UID

~/.bashrc not sourced for ssh commands on Archlinux

Hi. $ cat ~/.bashrc # # ~/.bashrc # echo Im in .bashrc 2 RHEL 6.0, bash 4.1.2 $ ssh localhost 'ps -f $$ true' Im in .bashrc UIDPID PPID C STIME TTY STAT TIME CMD git 22295 22294 0 08:29 ?Ss 0:00 bash -c ps -f $$ true

prevent ignore SIGINT for asynchronous commands without enabling job control

Hi. I have a script that creates some background tasks. I want the whole tree to be killed by Ctrl-C. There's a requirement that the script process and its children must belong to the same process group. This is why I can't enable job control. I don't want to use 'trap', because it adds

bug or feature? Ctrl+C sometimes can't interrupt a loop with multiple enclosed pipes

Configuration Information [Automatically generated, do not change]: Machine: i686 OS: linux-gnu Compiler: gcc Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='i686' -DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='i686-pc-linux-gnu' -DCONF_VENDOR='pc' -DLOCALEDIR='/usr/share/locale'