appending files

[spiderteen155]

the number of files used can be from 2 to 6 and the r is optinal. file1 through file6 must be regualr files and Newfile must not exist. The script is to add the contents of file1, file2, file3, ... to newfile. If the option r is present the files should be appened to newfile in reverse order otherwise the files are appended as entered.

an example input would be APPEND file1 file2 [file3] [file3] [file4] [file5] [file6] NewFile[r]

where APPEND is the script name.

the files contain some junk lines, nothing important, the purpose is to show how to append files

i am just curious how appending files work. Any help would be appreciated.

 

[jamisar]

in APPEND:

case x$1 in x) cat file[1-6] >appended_files
;; xr) cat `ls -r file[1-6]` >appended_files
;; esac -----------
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