Shell Programming and Scripting

Hello,
I am trying to save in a file a single "*" but its not working... look what i am doing...


FILE="/home/teste/a.txt"

...BEGIN...

ASTERISK="*"

echo "STRING $ASTERISK STRING" >> $FILE

...END...

when i do it, the result is a list of all files of the current folder....


i tried to use a "\*", but in the file come "STRING \* STRING"...

i just need a "*" in a variable to save later and stay like that "STRING * STRING"...

thx,
Diogo

Code:

$
$ echo $SHELL
/bin/bash
$
$ ls -1
file1
file2
file3
$
$ FILE="a.txt"
$ ASTERISK="*"
$
$ echo $ASTERISK
file1 file2 file3
$
$ echo "$ASTERISK"
*
$
$ echo "STRING $ASTERISK STRING"
STRING * STRING
$
$ echo "STRING $ASTERISK STRING" >> $FILE
$
$ ls -1
a.txt
file1
file2
file3
$
$ cat $FILE
STRING * STRING
$
$

tyler_durden

if you do echo * it will list the files
if you do echo "*" it will print * so it won't be a problem for you

Which SHELL are you using?

I am using shell scrit bash.
I have tested it, but if you try to put this result in a variable and try echo again its will show all files and folders in u current directory.

I used this script to change the crontab file. This is why i used a command with some asterisks grouped.

There is what i have done:

MINUT="0-55"
HOUR="*"
DAYOFMONTH="*"
MONTHOFYEAR="*"
DAYOFWEEK="*"
COMMAND="/home/$(whoami)/file.sh"

FULLCOMMAND="$MINUT $HOUR $DAYOFMONTH $MONTHOFYEAR $DAYOFWEEK $COMMAND"

i think is ok atm, but when i come with the next code the problem begin

echo $FULLCOMMAND >> $TEMPFILE
crontab $TEMPFILE

This code is similar of the original one without irrelevant parts of the problem

thx,
Diogo

i think i found the problem. Like everybody said, i need to use "" to pass the asterisk

i need to change the column that pass the string to file. Like that:


echo $FULLCOMMAND >> $TEMPFILE

to


echo "$FULLCOMMAND" >> $TEMPFILE

i ll try and back with the result.
thx everyone,
Diogo