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single quote the &&.

(GNU) sort on Linux has a -z option to sort NULL delimited, multi-line records:
sed 's/^2013/\x0&/' log-file |sort -z |tr -d '\0'

From the man page of sftp:

Nice solutions, although the perl solution can be shortened:

perl -le'$_=shift;s/\b(.)/\u$1/g;print' 'are utilities ready for hurricane sandy'
or
perl -ple's/\b./\u$&/g' <<<'are utilities ready...

Interesting problem. One ugly hack:
Q="$(clear)1) Quit"
select c in "$Q" ...
do
case $c in
"$Q") break ;;
...
esac
done

nl does have the ability to only number lines matching (basic) regex. But it still leaves extra spaces which may not be acceptable to you. Notice the alignment of the second and last line.
nl -s' '...

bash$ set -- are utilities ready for hurricane sandy
bash$ echo "${@^}"
Are Utilities Ready For Hurricane Sandy

ftp> ls -lrt |"tail -1"

I bet you have an extra space in your variable assignment:
SERVER_STATUS= ...

If you just want a quick and dirty estimation:
d=$(diff <(echo "$1" |sed 's/./&\n/g') <(echo "$2" |sed 's/./&\n/g') |grep -c '^[<>]')
echo $((100-100*d/(${#1}+${#2})))%

Change
for(i=2;i<=NF;i++)
if ($i != "[ACGTN]") { $i = "N" }
if ($i != "N") {
if (!($i in a))
n[++c]=$i
a[$i]++
}
to
for(i=2;i<=NF;i++)
if ($i ~...

grep . *.phe.ps |sed 's/\.phe\.ps:/ /'

pr -t -s' ' -2 -l 7 input

You seemed to have a misunderstanding about how pipe works. A pipe has a typical 4k buffer so you can write more than one byte to it. You tried hard to write one byte a time to the pipe (which is not...

Try to find info on the server side by either trace the sshd server with truss (on aix, strace on linux) "truss -f -p pid-of-sshd" or change LogLevel to DEBUG in the sshd conf file.

sed '/AA/!d;/BB/!d'

This is how you assign value to variable in bash and most other shells:
var=val
not
set var = val

In bash or ksh:
cp -a /!(bin|usr|var|tmp|sys|guest_roots)/ /guest_roots
mv /!(bin|usr|var|tmp|sys|guest_roots)/ /guest_roots

if [ logic ]
then
sleep 34
continue
fi

I will assume you want to change the header but keep the rest of the 30 million lines. Since the new header has the same length, the following will open file for both reading and writing:
sed -Ee...

The offset in TZ for GNU date (or libc?) seemed can't be bigger than 24. You need to convert the day part into -d argument as you said. Either override your date command with a function:
function...

script is the right approach, but if you don't want to use it, then run bash in interactive mode with option "-i" and read all the commands through stdin.
echo 'cd /root/;ls |grep .sh
lspci |grep...

You should use batch mode "sftp -b - $HOST <<RESULT" and check exit code $? of sftp in scripting.

So this is a CSV file (except that it's using the pipe character as delimiters instead of commas). Whatever is used to process this file should have the ability to parse it. Therefore you should do...

Your command line worked on my Linux, with find version 4.4.2.