mirror of https://github.com/tLDP/LDP
35 lines
761 B
Bash
35 lines
761 B
Bash
#!/bin/bash
|
|
# wh-loopc.sh: Count to 10 in a "while" loop.
|
|
|
|
LIMIT=10 # 10 iterations.
|
|
a=1
|
|
|
|
while [ "$a" -le $LIMIT ]
|
|
do
|
|
echo -n "$a "
|
|
let "a+=1"
|
|
done # No surprises, so far.
|
|
|
|
echo; echo
|
|
|
|
# +=================================================================+
|
|
|
|
# Now, we'll repeat with C-like syntax.
|
|
|
|
((a = 1)) # a=1
|
|
# Double parentheses permit space when setting a variable, as in C.
|
|
|
|
while (( a <= LIMIT )) # Double parentheses,
|
|
do #+ and no "$" preceding variables.
|
|
echo -n "$a "
|
|
((a += 1)) # let "a+=1"
|
|
# Yes, indeed.
|
|
# Double parentheses permit incrementing a variable with C-like syntax.
|
|
done
|
|
|
|
echo
|
|
|
|
# C and Java programmers can feel right at home in Bash.
|
|
|
|
exit 0
|