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UNIX for Dummies Questions & Answers
Unix Builtin commands
Post 302573871 by gwgreen1 on Wednesday 16th of November 2011 12:53:09 AM
11-16-2011
Unix Builtin commands
Hi,
In unix ls command is found in /bin/ls. Similarly where can I find built-in commands like read, set, unset commands. I found in some couple of websites saying found in bash tool set. In unix everything is considered as a type of file with path.
Please can anyone tell me where is that Bash tool set found any path to find these built-in commands. Without clearing this doubt, I could not able to skip this built-in chapter.
In unix ls command is found in /bin/ls. Similarly where can I find built-in commands like read, set, unset commands. I found in some couple of websites saying found in bash tool set. In unix everything is considered as a type of file with path.
Please can anyone tell me where is that Bash tool set found any path to find these built-in commands. Without clearing this doubt, I could not able to skip this built-in chapter.
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LEARN ABOUT HPUX
which
which(1) General Commands Manual which(1) NAME
which - locate a program file including aliases and paths SYNOPSIS
[name...] DESCRIPTION
For each name given, searches for the file that would be executed if name were given as a command, and displays the absolute path of that file. Each argument is expanded if it is aliased, and searched for along the user's path. Both aliases and path are determined by sourc- ing (executing) the user's file. DIAGNOSTICS
A diagnostic is given for names that are aliased to more than a single word, or if an executable file with the argument name was not found in the path. EXAMPLES
The command: specifies where the executable program of the sh(1) command is found. For example, the response might be: if the sh(1) being used is located in WARNINGS
reports aliases even when not invoked from csh. cannot find built-in commands (e.g., jobs). information may be incorrect because it is unaware of any path or alias changes that have occurred in the current shell session. AUTHOR
was developed by the University of California, Berkeley. FILES
source of aliases and path values which(1)