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What does source mean in shell?
source is a shell built-in command which is used to read and execute the content of a file(generally set of commands), passed as an argument in the current shell script. If any arguments are supplied, they become the positional parameters when filename is executed.
What does shell source do?
The source command reads and executes commands from the file specified as its argument in the current shell environment. It is useful to load functions, variables, and configuration files into shell scripts. source is a shell built-in in Bash and other popular shells used in Linux and UNIX operating systems.
What is the opposite of source?
source. Antonyms: mouth, debouchure, termination, end, exit, issue, result, effect. Synonyms: rise, origin, spring, fount, fountain, cause, commencement, beginning.
What is the difference between using’sh’and’source’?
You may notice a different behaviour between the two syntaxes. 😉 The main difference is that they are executed in a different process. So if you source a file foo which does a cd, the sourcing shell (e.g. your interactive shell in the terminal) is affected (and its current directory will change)
What is the difference between ” source ” and “.” in Bash?
source and . are synonymous in Bash. For anyone who might like to verify that the commands are simply synonyms and nothing more, look at the source code, say for version 4.3, and examine the file builtins/source.def. You will read that both of the built-in commands, source and ., use the very same function: source_builtin.
What’s the difference between source, Exec and./ script?
When the end of the script file is encountered, the new shell exits. Any changes in the new shell caused by the script are lost when the shell exits. /home/user/sample/script/test contains… source execute a shell script within the context of the current shell.
What’s the difference between running a script and sourcing?
Running a script the first way runs it as a child process. Sourcing (the second way), on the other hand, runs the script as if you entered all its commands into the current shell – if the script sets a variable, it will remain set, if the script exits, your session will exit. See help . for documentation.