Could someone explain why this one returns nothing:
When a pattern matching is done using ~ we need to give the reg-exp in between / / (2 forward slashes).Still, when given inside the slashes it is taken as literally, so when changing the above awk as
it matches the word xa and not the variable xa's value.Hence we need to expand the variable as below
This is not the case when == is used as you would know this is used to equate between variables.Therefore in code $1==xa.. xa is expanded (to jon).
I am attempting to convert rewrite rules to Nginx, and since due to the mass amount of rewrites we must convert, I've been trying to write a script to help me on a specific part, easily.
So far I have this:
rewrite ^action/static/(+)/$ staticPage.php?pg=$1&%$query_string;
What I want done... (5 Replies)
I want to block all special characters except alphanumerics.. and "."(dot ) character
currently am using //
I want to even block only single dot or multiple dots..
ex:
. or .............. should be blocked.
please provide me the reg ex.
---------- Post updated at 05:11 AM... (10 Replies)
Good morning all!!
In my code I and looking through file /etc/syslog.congf and printing every line that has /var/log in it. I need to turn the if 9$line) into a regex code instead.
#!/usr/bin/perl
@file= 'cat /etc/syslog.conf'; //when
foreach $line (@file){
if ($line =~... (3 Replies)
I am trying to grep the following line in a file using a bash shell:
(..)
admin1::14959::::::
(..)
It works with the following expression (as expected)
# cat file | grep ^*::
admin1::14959::::::
but it does not work with (not expected)
# cat /etc/shadow | grep ^+::
I assume the... (2 Replies)
Hi All,
I have a sftp session log where I am transferring multi files by issuing "mput abc*.dat". The contents of the logfile is below -
#################################################
Connecting to 10.75.112.194...
Changing to: /home/dasd9x/testing1
sftp> mput abc*.dat
Uploading... (7 Replies)
Hi,
Server - MEDIAWIKI - MYSQL - CENTOS 5 - PHP5
I have a database import of close to a million pages into my wiki, mediawiki site,
the format that were left with is not pretty, and I need to find a way to clean this up and present it nicely...
I think regex is the best option as I can... (1 Reply)
# check host value regex='^(||1|2|25)(\.(||1|2|25)){3}$' if ')" != "" ]; then if ]; then echo host $host not found exit 4 fi elif ]; then echo $host is an invalid host address exit 5 fi (1 Reply)
I have following expression:
echo "Sun 12 Jul BST 2014\nSun 12 Jul 2014\nSun 12 Jul IS 2014" | awk '/(Sun)+( 12)+( Jul )+({3} )?(2014)/{print;}'
I ran above code in AIX box and output is as follows
Sun 12 Jul BST 2014
Sun 12 Jul 2014
I ran above code in Linux box and output is as... (8 Replies)
I have a XML file where there is a tag with like
<wd:address_line_1>1234 Street</wd:address_line_1>
I want to replace the values "1234 Street" with "Test Data". Different people have different address lines and i want to replace with a fixed value to mask the file. I was trying to use sed... (7 Replies)
I am trying to add word in last of particular line.
the same command syntex is running on prompt. but in bash script give error."sed: -e expression #1, char 20: unterminated address regex"
Please help.
for i in `cat servername`;
do
ssh -q -t root@$i sed -i '/simple_allow_groups =/s/$/,... (4 Replies)
Discussion started by: yash_message
4 Replies
LEARN ABOUT CENTOS
grub-render-label
GRUB-RENDER-LABEL(1) User Commands GRUB-RENDER-LABEL(1)NAME
grub-render-label - generate a .disk_label for Apple Macs.
SYNOPSIS
grub-render-label [OPTION...] [OPTIONS]
DESCRIPTION
Render Apple .disk_label.
-b, --bgcolor=COLOR
use COLOR for background
-c, --color=COLOR
use COLOR for text
-f, --font=FILE
use FILE as font (PF2).
-i, --input=FILE
read text from FILE.
-o, --output=FILE
set output filename. Default is STDOUT
-t, --text=STRING
set the label to render
-v, --verbose
print verbose messages.
-?, --help
give this help list
--usage
give a short usage message
-V, --version
print program version
Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.
REPORTING BUGS
Report bugs to <bug-grub@gnu.org>.
SEE ALSO
The full documentation for grub-render-label is maintained as a Texinfo manual. If the info and grub-render-label programs are properly
installed at your site, the command
info grub-render-label
should give you access to the complete manual.
grub-render-label (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-RENDER-LABEL(1)