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#!/bin/bash
export PATH=$PATH:/home/Dir
export AWS_ACCESS_KEY_ID
export AWS_SECRET_ACCESS_KEY
export AWS_CREDENTIAL_FILE

/usr/local/bin/ec2-stop-instances i-xxxx --region us-west-2...

copy the contents into the main script file...you can read it right?

couple of questions:


is 'another_script' residing in the same dir as the 'remote_script.sh'? If not, can its location be determined relative of the location of the 'remote_script.sh'?
Do you...

You show that you are logging in as the root user. Who owns the file?
Why not just read the contents of that second script file and merge it into the one script. You're sourcing that script to save...

Use a full path to the another_script.sh, inside the remote_script.

how about awk? Use nawk on solaris. awk '/pattern/ {
for(N=1; N<=3; N++)
{
if(N>1) getline
print "#", $0;
}
next } 1' inputfile...

The sed command didn't work for you because the relative address +2 is a non-standard GNU sed extension. However, the standard ed text editor supports this type of addressing. And since ed can write...

Some more golf ;)
awk '/pattern/{c=3} c-->0{printf "#"}1' infile

sed version:
sed '/pattern/{N; N; s/^/#/; s/\n/&#/g;}' infile

write to a new file, then overwrite the old. That's all -i does anyway.

Of course, it's always dangerous to overwrite your originals. Ideally you could just use the originals as templates for...

[user@home-pc ~]$ cat file
...
...
...
Hello world
how r u
whats up
....
....
...
[user@home-pc ~]$ perl -i.bak -lne 'if(/Hello/){$f=1;$l=$.;print "# $_";}elsif($f==1 && $.<=$l+2){print "#...

Try:

sed '/Hello world/,+2s/^/#/' list.txt > list_$$.txt
mv list_$$.txt list.txt

In at, now means at this time today. Specifying now and tomorrow gives conflicting specifications for when the job should be run. If you want to run a job every day at about noon, you can start it...

If you are using GNU awk, you can do all with one awk sweep.
awk -F'[<>]' '{print $3}' xmlfileNote that this assumes there is at most one value per line.
awk -F'[<>]' '{print $3,$7,$11}'...

So you want to force the create flag?

You can run the exec command at the end of the find search, and redirect all found arguments at once:

find ./ -type f -name "*.txt" -exec tar -cvf...

You should use update. Actually you are creating a new tar archive each time overwriting the already existent (if) so only the last found txt will be in tar archive. So it would look like:

find ./...

sed's substitute command's format: s/re/repl/flags
Note the absence of a trailing forward-slash delimiter. You want to use a flag value of 2, not \2/.

Although it probably has nothing to do with...

no it doesn't have to be sed.The only thing is that is a bash script.
Is this a problem for using perl?

awk -F: 'tolower($1) ~ /testaccount2/{for(i=1;i<=NF;i++){if($i ~ /[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}/) print $i}}' inputfile

How about a variation of the following?

var=$(date --date=20120305 +%s)

var=$(($var-86400))

date -d @$var +%Y%m%d

Substitute the first date with a variable from elsewhere in the script...

When using shell "time" the backticks are not required as "time" is part of the shell syntax. Also, it is good to direct the output to /dev/null, while testing and the system cache needs to be taken...

you could always try a comparison script to see how these are performing on your machine - e.g.

#!/bin/sh
time `sed -n '25000,26000 p' filename`
time `awk 'NR==25000,NR==26000' filename`
exit 0...

It depends on your implementations of sed and awk, so isn't a certain thing. It can vary quite a lot, and our results may not be relevant to your system.

I'd be curious whether this is faster...

awk '/select/ {print match($0,/select/)}' file

awk 'NR==1 {print index($0,"select"); exit}' inputfile

It is splitting on a - character and using NF (the number of fields in the record) to distinguish between formats (the one's that don't have a - will have only one field, those with a - will have...