user191960 user191960 - 6 months ago 10
Linux Question

Use bash to read a file and then execute a command from the words extracted

FILE:

hello
world


I would like to use a scripting language (BASH) to execute a command that reads each
WORD
in the
FILE
above and then plugs it into a
command
.

It then loops to the next word in the list (each word on new line).
It stops when it reaches the end of the
FILE
.




Progression would be similar to this:

Read first
WORD
from
FILE
above

Plug word into command

command WORD > WORD



  • which will output it to a text file; with word as the name of the file.



Repeat this process, but with next to nth
WORD
(each on a new line).

Terminate process upon reaching the end of
FILE
above.




Result of BASH command on
FILE
above:

hello:

RESULT OF COMMAND UPON WORD hello


world:

RESULT OF COMMAND UPON WORD world

Answer

You can use the "for" loop to do this. something like..

for WORD in `cat FILE`
do
   echo $WORD
   command $WORD > $WORD
done