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... and zsh.

Using fold:

fold -b70 input

You should modify the current IFS in order to achieve that.
Something like:

while IFS= read -r ...Notice that some read implementations do not support the -r option.

With AWK you'll need something like this:

awk '{gsub("hello", "bye")}1' test.dat > test.dat_tmp &&
mv test.dat_tmp test.dator this (not recommended):

{ rm test.dat &&
awk...

Try to change:

expect "password:" to

expect "Password:"

Try:
LC_ALL=C tree

Following up on MadeInGermany's more standard sed solution,
I suppose the OP needs something like this:
sed '/^dns\.com$/ {N;N;d;}' /tmp/temp.txt

Try:
sed '/^dns\.com$/,+2d' /tmp/temp.txt

Save the current Internal Field Separator in oIFS, set it temporarily to '/' so the shell can split the string, restore ASAP the standard value.
For more information:

man sh|less -pIFS

Either use a VM with Linux and ask here or, if you choose Windows, post on the Oracle Forums (https://community.oracle.com/community/database/general_questions/installation).

Yes, you can. You can also use Oracle VirtualBox on Windows to setup
a VM with Oracle Linux (or CentOS) and install Oracle Database on it.

You have installed only the client. You're not able to connect as there's no database ...
Oracle Database Server is not supported on Ubuntu, you can use a free supported
platform like Oracle Linux.

Just for your info:
with GNU awk 4+ you don't need an external program for sorting:

awk 'BEGIN {
# scan arrays by values ASCIIbetical order
PROCINFO["sorted_in"] = "@val_str_asc"
}
{...

As a side note, the shell pattern * won't match filenames that start with a dot
(unless some non-standard shell option similar to bash's dotglob is active) ,
so the above command won't show you...

perl -00e'print sort <>' infile

In the output of vmstat the free memory is in KB, the sar output is in pages.
bash-3.2$ sar -r 1 1

SunOS <name> 5.10 Generic_147440-09 sun4v 05/26/2014

14:23:00 freemem freeswap
14:23:01...

You don't need to do so because neither word splitting nor pathname expansion(globbing) are performed in this context.

After installing the binaries (the Oracle RDBMS software), you'll need to create the database.

Try:
var_path=$PWD
echo "$var_path"
case $var_path in
( *src* ) echo "this $var_path contains 'src'";;
esacOr just:
case $PWD in
( *src* ) echo "this $PWD contains 'src'";;
esac

Remove the prompt and use &1 instead of &client_id.

If Perl is acceptable:
perl -F, -lane'
push @d, [@F];
END {
$, = ",";
for $i (0..$#F) {
push @o, [sort { $a <=> $b } map $d[$_][$i], 0..$#d]
}
for $i (0..$#d) {
...

Or:
[ -e "$DIRTOCREATE" ] || mkdir -p -- "$DIRTOCREATE"

If I understand correctly:

$ cat a.sql
select &1 from dual;
$ field_name=sysdate
$ sqlplus -s '/ as sysdba' <<EOF
> @a.sql "$field_name"
> EOF
old 1: select &1 from dual
new 1: select...

Well, as always - it depends, but a graceful restart of Apache usually has a limited impact.

To defer the expansion of the variables:

bash-3.00$ su - oracle -c "x=1; echo $x"
Password:
Sun Microsystems Inc. SunOS 5.10 Generic January 2005

bash-3.00$ su - oracle -c "x=1; echo...