rguments like:
cp-pattern '*.txt' .bak
... note how the second pattern has no wild cards and how the first is quoted to prevent any shell globbing... at least one file that exists in the $1 pattern. However it becomes much harder to make this command r... e other examples.
My point here has been to show how we can do quite a bit of string parsing and manip... of Unix is that each user has many options about how they choose to program something. Well written sc
n test brackets (see Example 7-6) normally works, however, this is an unsafe practice. Always quote a t... ts of all-integer characters.
# Caution advised, however.
echo
if [ "$a" -ne "$b" ]
then
echo "$a ... rator alone detects whether the string is null.
# However it is good practice to quote it (if [ "$strin... lse condition. So far, everything as expected.
# However ...
[ 1 -eq 2 -a -n "`echo true 1>&2`" ]
