i am pretty much new to scripting and don't want to pick up bad habits so I am trying to get myself to use brackets in my scripts since I plan on using them alot.. !
in this example of a script I wrote I can not figure out where the brackets go can anyone give me some insight into the use of brackets..??
# !/bin/sh
# .clear
TTY=`tty`
function fun { clear; pwd; date; tty; }
echo "enter term:"
read term
if [ "$TTY" == "/dev/pts/$term" ]
then
fun
echo "experimental terminal" > /dev/pts/$term
elif [ "$term" == "z" ]
then
fun
ls -ali -R . | less > /dev/tty
else
fun
while [ "$term" == "a" ]
do
fun
echo "//usbterminal//" > /dev/tty
break;
done
fi
I am taking scripting seriously and have managed to get this far on my own with a few suggestions from unix.com.. I would really like to understand the theory behind brackets.. :rolleyes:
thanx moxxx68
in the script I am comfortable with the barckets around the test conditions and so on.. but as far as the brackets that go around the if then fi blocks and so on, i am not sure where to place them.. I have some general idea from studying c programming.. but i am not having the same success with brackets in shells as I am having with c programming.. an example would help...
infact after looking through a few posts on the sites I didn't see the use of braces in a script so i figured you can do without them, but Jim a senior member gave me an example of a script in good logic form where he used braces. and since what I wrote was close and not working because of set up, he suggested to use better format.. at the time it looked a little difficult to even set up the gawk script in # !/bin/sh format like he did without the braces.!! but if braces are not considered completely necessry all the better..