Linux Bash script: Define your own delay code block (bare data saving scheme)

Combine the alias and read usage methods. The ability to save some scripts that will be deferred, or bare data (strings not extended) into a variable. For later use.

$ alias begin= ' read-d "" $ << "END" ' $ BEGIN block1> ls-la> end$ eval $block 1total 10drwxr-xr-x    1 Xiaoqia n administ     4096  5 22:42/drwxr-xr-x Xiaoqian administ     4096 Nov  5 22:31. /-rw-r--r--    1 Xiaoqian administ        3 Oct 16:26. gitignore-rw-r--r--    1 Xiaoqian administ      435 Oct 31 16: Readme.mddrwxr-xr-x    2 Xiaoqian administ        0 Nov  5 22:32 bin/-rwxr-xr-x    1 Xiaoqian administ      792 Oct to 16:26 meditate

Over, in fact Block1 is also a bare data, a BEGIN ... The end block includes random character text. Can be understood asblock1= "Ls-la", it is only here that the text is not extended by the shell engine.

Linux Bash script: Define your own delay code block (bare data saving scheme)