What is difference between sh and ksh?

What is difference between sh and ksh?

sh is the original Bourne shell. On many non-Linux systems, this is an old shell without the POSIX features. Thus bash and ksh (or even csh and tcsh) are better choices than sh. On some systems though, sh is really the same as bash or ksh.

What is difference between Bash and Shell?

5 Answers. Bash ( bash ) is one of many available (yet the most commonly used) Unix shells. Bash stands for "Bourne Again SHell", and is a replacement/improvement of the original Bourne shell ( sh ). Shell scripting is scripting in any shell, whereas Bash scripting is scripting specifically for Bash.

How do you run a script?

An associative array is an array with a string as an index. The typeset command used with the -A flag allows you to specify associative arrays within ksh93. For example: $ typeset -A teammates $ teammates=( [john]=smith [mary]=jones ) $ print ${teammates[mary]} jones. Variable name references.

What is the use of in shell scripting?

Shell scripting is writing a series of command for the shell to execute. It can combine lengthy and repetitive sequences of commands into a single and simple script, which can be stored and executed anytime. This reduces the effort required by the end user.