negahdar
asked on
shell
The following shell script adds entries to a file named journal-file in your home directory. It can help you keep track of phone conversations and meetings.
$ cat journal
# journal: add journalentries to the file
# $HOME/journal-file
file=”$name” n >> $file
date >> $file
echo “Enter name of person or group: \c”
read name
echo “$name” >> $file
echo >> $file
cat >> $file
echo”---------------------
echo >> $file
Why does it use the read built-in the first time it accepts input from the terminal and the cat
utility the second time?
$ cat journal
# journal: add journalentries to the file
# $HOME/journal-file
file=”$name” n >> $file
date >> $file
echo “Enter name of person or group: \c”
read name
echo “$name” >> $file
echo >> $file
cat >> $file
echo”---------------------
echo >> $file
Why does it use the read built-in the first time it accepts input from the terminal and the cat
utility the second time?
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read name
takes the input whenever you press "enter"
cat >> $file
wait till Cntl+D
Vinit
takes the input whenever you press "enter"
cat >> $file
wait till Cntl+D
Vinit
cat reads until end of file