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What is the error message? It works here on CentOS 6.5:

$ cat input
john,5
marco,7
john,4
paul,3
marco,8
$ awk -F, '{ A[$1]+=$2 } END { OFS=","; for (x in A) print x,A[x]; }' input
paul,3...

This minor version difference should not matter.

Probably a login script like .bashrc or .profile produces some output which confuses rsync. If so, eliminate this output at least for non...

sudo switches users, not groups. But you can assign the apache group to those users as secondary group

usermod -a -G apache fred
After this, fred is a member of both groups simultaneously. Both...

For example

fred ALL=(apache) ALL
allows fred to switch to the apache user. He has to enter his own password every time he switches. If he shall be allowed to switch without entering his...

Firewalld implements a zone concept. To allow access to services based on the source address, just create a new zone, add source addresses and services to the zone and you are done.

Here is an...

Try

awk '{ if ($3 == "TS_") $5 = "$-1.00" ; print }' input >output

The shebang line does only work with languages that interpret the hash-sign as a comment. Javascript does not, so it thinks, that #!/usr/bin/js is a valid statement. By the way, if you feed your...

You can try this awk script. It looks for fields looking like dates, splits them into month, day and year and recombines them using a proper format.


BEGIN {
FS="|"
OFS="|"
}
{
...

%5dn prints the line number with a standard printf like format of %5d (numeric, 5 characters wide with leading blanks).

< or > are literal strings.

%L is substituted by the line content.
...

Or maybe this?

file1:
one
two
three
file2:
one
two
four
and
$ diff --old-line-format="%5dn< %L" --new-line-format="%5dn> %L" --unchanged-line-format="" file1 file2
3< three
3>...

Looks like the output of the select statement is not just 0, but something like 0.

If the status code in the database does not contain blanks, you just could remove the quotes from the case...

I am not sure, if I understand you correctly. Do you mean the SQL SELECT statement or the case-construct afterwards? Can you give an example?

You might want to run db2 -x SELECT ... to get rid of the heading and 1 record(s) selected.

You could use awk to produce the SQL statements to query the database and pipe the output to the DB2 CLP, for example

awk -f script.awk inputfile | db2 +p -x

You will have to print the CONNECT...

What the example says is this:

If you want to send to a system in the 10.0.0.0 network, you don't have to use a gateway (router). Just send the packet out of the eth1 interface and the destination...

The request is processed by a virtual host with a matching ServerName or ServerAlias. If no one matches the url, the first virtual host defined will process the request.

You can dump some...

DSA keys should work pretty much the same way RSA keys do.

If the public key is not recognized by the server, check that the permissions on ~/.ssh and ~/.ssh/authorized_keys on the server are set...

What does

chkconfig --list X
say? The output should look like in this example:

# chkconfig --list X
X 0:off 1:off 2:on 3:on 4:on 5:on 6:off
But if it reads

...

The ignoredisk option should do just what you want. To ignore all FC-LUNs, for example, put

ignoredisk --drives=/dev/disk/by-path/pci-*-fc-*

into your kickstart file. This is documented here:...

Unfortunatelly this sequence is not a perfect if-then-else replacement. It works as expected in situations like:

$ true && echo true || echo false
true
$ false && echo true || echo false...

Have a look at /var/svc/log/network-ntp:default.log, it might have useful information about why the service is failing.

The only situation I can think of where this might be useful is a shared webhosting environment with ssh access. In this case the admins might want you not to execute any stuff not provided by the...

awk can read multiple files in one run, just use all filenames or a wildcard expression on the command line

awk -f script.awk *.xls

You do not need cat for this. Or if you need the intermediate...

Try this

{
val = substr ($1, 1, 8);
cod = substr ($1, 9, 2);

if (index (array[val], cod) == 0) array[val] = array[val] " " cod;
}

END {
for (val in array)
if...

This bash-script should do the trick:

#!/bin/bash

declare -A array

while read line
do
case "${array[${line:0:8}]}" in
*${line:8:2}*)
;;
*)
...