Oct 1, 2016 · You should use sh -c when you want to execute a command specifically with that shell instead of bash. You can use this syntax (the -c flag) with other interpreters too. One classic use of it (pointed out by @edwinksl is to get around the problem of redirection not working with sudo (here you could use bash -c or sh -c) sudo sh -c 'echo "foo ...

And the answer is that sh is name for very popular shell. But outdated and replaced by others. Nowadays sh is linked to others shells installed on machine. e.g. I have bash putted there. Running any shell from sh usually trigger some 'compatibility' mode with original 'shell' behavior. So solution is quite simple.

May 25, 2012 · In addition to the previous answers, even if /bin/sh is a symbolic link to /bin/bash, #!/bin/sh is not totally equivalent to #!/bin/bash. From the bash(1) man page: "If bash is invoked with the name sh, it tries to mimic the startup behavior of historical versions of sh as closely as possible, while conforming to the POSIX standard as well."

May 1, 2011 · In the terminal, access the directory the Bash file is in using cd (change directory). Ex. cd Downloads. Run bash <filename>.sh. This also works with .run files. There is an example of this usage at this webpage on updating Rhythmbox. Option 2. In the terminal, navigate to the directory the bash file is in. Run chmod +x <filename>.sh

Bash is an sh-compatible shell that incorporates useful features from the Korn shell (ksh) and C shell (csh). It is intended to conform to the IEEE POSIX P1003.2/ISO 9945.2 Shell and Tools standard. It offers functional improvements over sh for both programming and interactive use. In addition, most sh scripts can be run by Bash without ...

Feb 28, 2015 · However, by default sh is a symbolic link to dash, while rbash links to bash with the option -r ("restricted bash") so there are actually only two shells, not four as the above list suggests. The following command will show you whether any of the listed shells are in fact symbolic links, and if so where they link to: ls -l /bin

Usually the parent shell guesses that the script is written for the the same shell (minimal Bourne-like shells run the script with /bin/sh, bash runs it as a bash subprocess) ... Because of this, when the script is executed, you won't find a process named after script (or a process with the script's name in the command line) and pgrep will fail.

Oct 13, 2016 · However, it is important to note that the results can be different depending on which interpreter is called, as not all bash commands will work in sh, whereas most sh commands will work in bash. In general, most users will want to use /bin/bash for their scripts so they can take advantage of the extended feature set; system scripts can be ...

I'm creating a simple bash script and I want to create a select menu in it, like this: $./script echo "Choose your option:" 1) Option 1 2) Option 2 3) Option 3 4) Quit And according to u...

Apr 20, 2015 · rvm is a bash file, and it does run ok when I attempt to run it from its own folder (production_x86_64-linux). It works also fine if I attempt to run it when opening the terminal in its parent folder, for instance, or even its parent-parent folder.