I would like to insert a line into the /etc/sysconfig/iptables with a command like sed or with any script. How can I insert this line:
-A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT
but under the line "-A INPUT -p tcp -m state --state NEW -m tcp --dport 22 -j ACCEPT"
I want to insert the text "DB dept" in the last line of passwd file which looks like this right now
Quote:
newuser:x:717:717::/home/sacharje:/bin/bash
And I want it to be like this:
Quote:
newuser:x:717:717: DB dept:/home/sacharje:/bin/bash
I tried to do that with sed but failed, I'd like to know the proper syntex with sed to achieve this.
I need to be able to edit a file from the commend line as I intend to script this operation, the file is called menu.lst The original is as below
Code:
titleUbuntu 8.04.3 LTS, kernel 2.6.24-24-generic
root(hd0,0)
kernel/boot/vmlinuz-2.6.24-24-generic root=UUID=b09feb23-5524-4ec4-862f-94700b968f64 ro quiet splash
[code]....
I've been reading tutorials of Linux sed command, but haven't got anything yet. the problem is : I want to insert a line into my DNS database file which has a pattern like below:
<Domain name> 3tabs here <IN> <A> <ip address>
the question is : how to add a line into a file like this using linux sed command? I have problem inserting tabs and the spaces!
I am trying to create a shell script where a user can specify a file with a list of logins and the script will create a batch file with specific information in specific columns.
Example:
loginfile.txt has
User1
User2
User3
I need the output to be as below:
1 User1 Date 12/31/9999
2 User2 Date 12/31/9999
3 User3 Date 12/31/9999
Where the columns are separated as below.
1[tab][tab]User1[tab]date +%D[tab]12/31/9999
2[tab][tab]User2[tab]date +%D[tab]12/31/9999
3[tab][tab]User3[tab]date +%D[tab]12/31/9999
I can use the nl utility to get the numbers easily enough, but I need two tab separations between the number and the user list. Is there a sed command that will insert at the beginning of each line? If so I can just run nl after I get some tabs up in the front.
I need to run a command in a shell script to insert a line in a file, after it finds certain line. To add the line 'user = mysql' after the line [mysqld] in file /etc/my.cnf
View 3 Replies View Relatedi have two files with thousands of line, I am trying to combine these two files but i want to insert each line of one file to the another file after certain lines. I am using awk with the following command but it does not work.cat file1 | awk ' { print $0; if (NR%3004==0) {print "file2"}}' > outputfile
View 14 Replies View RelatedI'd like show a certain line or lines of a file with context, kind of like a unified diff, on the command line in Linux:
$ (something) -l 154 stuff.py
150: def foo(bar):
151: """
[code]....
I have following file workers file: There are 800 entries like this.
# consensus/uat
worker.consensus-uat1.host=lonlx10409
worker.consensus-uat1.port=13702
worker.consensus-uat1.type=ajp13
[code]....
I want to insert one line just below the line starting with "woker.list". I think sed can do it but I am not aware.
I need to be able to convert HTML email messages saved as text files (.eml or .msg) to PDF documents, one PDF per email, retaining formatting and images.
Are there any Linux tools that will allow me to do this from the command line (so it can be scripted)?
I want to insert a line at a particular line number using sed or awk. where line number is not fixed and is in form of variable.
I want to use variable in sed or awk command.I tried something like below, but no luck.
Code:
sed -n '123p' file
that will print line 123 but how might I insert text to a specified line?
Let's say i have a link to a file http://www.domain.com/dir/myfile.ext
Is there a command line tool that will allow me to download this file. I'm looking for something like: download <http address> ... is there anything that simple?
I want to download a file from the Linux command line. Basically I'm using ssh and I'm trying to download a file to my file system on my laptop. How can I do that from the command line?
View 3 Replies View RelatedHow can I create multipart rar file in Linux using the official console rar client?RAR 3.90 Copyright (c) 1993-2009 Alexander Roshal 16 Aug 2009Shareware version Type RAR -? for helpI want a multipart rar with each part size being 150 MB.
View 1 Replies View RelatedHow to split a tar file into smaller parts at file boundaries?
How can I create a multipart tar file in Linux?
I have a jar, and I need to replace a class in it, at this moment, I can only open it with "archive manager" and then drag and drop the new compiled class into the jar, but I think this is really boring, if I can do with with just a command ?
View 1 Replies View RelatedWhat's a Unix/Linux one-liner that will let me delete all but the most recent N revisions of each file?
I've got a bunch of files with revision numbers as part of a legacy asset-management system:
bar.r7.js
bar.r8.js
bar.r9.js
bar.r10.js
bar.r11.js
[Code]....
I want to keep the last three of each, so in the above list the command would delete bar.r7.js, bar.r8.js and foo.r1.js.
I've got files in a directory as follows:
1.png
1_thumb.png
1-1.png
1-1_thumb.png
[code]....
I want to list all the files that don't have a copy with the same filename with -1 somewhere in it. So, in the example above, the results would be 3.png.
NB: the file and its copy with "-1" in it will be the same filesize, if that helps.
find and use the file-manipulation tools for the command line.
View 2 Replies View RelatedWhat is file-manipulation tool used for on the Linux command line?
View 7 Replies View RelatedI've got a Debian Squeeze computer on which the graphics have packed up, but the terminal in single user mode work perfectly fine.
There are a few files on this Debian computer that I want to transfer off, to a networked computer, but I have no idea how to do this.
The destination computer is a freshly re-setup Mandriva install, without (as yet) samba. I don't think it's necessary though. The Mandriva install works fine, has graphics, etc, but can't see the Debian Squeeze computer on the network, possibly because it's in single user mode, thus prompting the problem of how to transfer the files, using only a command line.
How do I find the file-manipulation tools on the command line?
View 5 Replies View RelatedI want to tail the latest log file in one command line. I dont know what command/option to use for the same.
View 5 Replies View RelatedIn Linux, I'd like to know how to find the file(s) if any which as using a particular sector on the hard drive (ext2/3). There is a similar question here regarding Windows, however I need a Linux command line solution (this is a headless system).
View 1 Replies View RelatedI need to download a file from a website which has a URL formatted like:
[URL]
This redirects to a .zip file which has to be saved. There is also a need to authenticate based on username and password.
I tried to use wget, curl and lynx with no luck.
UPDATE:
wget doesnt work with redirection. It simply downloads the webpage instead of the zip file. curl gives the error "Maximum redirection exceeded > 50 " lynx also gives the same error.
How can I create a multipart 7zip file in Linux using the p7zip console client? My console app is
7-Zip [64] 9.13 beta Copyright (c) 1999-2010 Igor Pavlov 2010-04-15
p7zip Version 9.13 (locale=C,Utf16=off,HugeFiles=on,4 CPUs)
How do I move around select a file and move or copy it. All tutorials I have seen are not simple enough.
View 7 Replies View RelatedHow can I move a directory to the root of a drive via command line?
In MS-DOS it would be 'move C:/GAMES/QUAKE C:/'
What is the equivilent in Linux?
I've spent hours trying to scan + shrink a multipage PDF documentlosing readability. This is the first time I've ever needed to do this! (I had to scan each page as ".jpg" in order to email and open on another computer, so I could not scan to PDF directly, which I think is why each page was so large; lower DPIs made the text too blurry.)I found this great tip on UbuntuGeek...but anyone can do this if GhostScript is installed:
View 1 Replies View Related