I was looking for what rehash command does and found this:
The rehash command re-computes the internal hash table of the contents of directories listed in the path environmental variable to account for new commands added.
I never knew about any internal hash tables. Why and how are they maintained?
Is there a way for me to rsync two directories comparing only filenames (and not file size, date modified, or any other criteria)?
View 2 Replies View RelatedNewbie here. I'm thinking about going from Ubuntu to Slackware and I just saw on Wikipedia that there is a number of projects that maintain GNOME binaries especially for Slack. So that made me wonder, why is that needed? What if I download a bare version of Slack and then build the standard GNOME version from source? Would that produce problems?
View 3 Replies View RelatedI'm running Fedora Core 12 x86_64. I started out using the default bash shell (and customized the .bashrc, etc. as necessary) but had to switch to csh for this one scientific package that requires that shell.
The issue is that my $PATH has unwanted redundancy and I can't figure out how to fix it:
Code:
The csh shell was completely new to me so I'm sure I made a mistake somewhere.
Below are the files that might be relevant for diagnosing this problem. I don't think I touched /etc/csh.login or /etc/csh.cshrc but I might have accidentally done so.
Code:
Code:
Very new to this shell scripting/Linux scripting.
subject_dir=/labs/tricam/MERIT/MERIT_0*
for subject in `ls $subject_dir` ; do
if [ ! -d $subject_dir/$subject/feat/glm2010/doublegz/SRRTA.feat ] ; then
[code]....
I found the following function in /etc/profile file.
[Code]...
1. I dont undestand what "if ! echo $PATH | /bin/grep -qE "(^|:)$1($|:)"" this if statement actually comapres??
2. Also what is the difference between PATH=$PATH:$1 & PATH=$1:$PATH
what is the translation table and referance table in any DB (with referance to Data conversion)
View 2 Replies View RelatedGoogle searches for "secure locate Kevin Lindsay" and "secure locate source" do not show any signs of ongoing maintenance, but do bring up a few security advisories related, afaict, to memory corruption. If it's a Google problem, sorry in advance to the maintainer.
View 6 Replies View Relatedi am in need of linux help. iam at college and i need this back/restore script to pass this final part of an assessment. i require a backup script that will not only backup but also restore files to the relevent directories. e.g. users are instructed to store all wordprocessor files in a directory named wp. so i am needing to create a backup directory and 3 directories within that and some files within the 3 directories and then back them up ot restore them. l know i should/have to do this myself by been trying to get/understand info for the last few days and came up with zero.
View 14 Replies View RelatedI want to make a webserver with multiple users allowed to login through SFTP to a specific folder, www.Multiple users are added, lets say user1 and user2, and all of them belonging to the www-data group. The www directory has an owner www-data and a group www-data.
I have used chmod -R 775 on the www folder, but after I try to create a folder test through my SFTP server (using Filezilla) the group of the directory created has only r and x permissions, and I am not able to log in with the second user user2 and create a directory within www/test due to a lack of w permission to the group.
I also tried using chmod 2775 on www directory, but without luck. Can somebody explain to me, how can I make it so that a newly created directory inherits the root directory group permissions?
I use this command:
Code:
find ./ -atime +360
to figure out the files that haven't been accessed since 360 days. The command above will return results like this:
Code:
/uploads/2010/02/some-file-name.ext
/uploads/2009/08/another-file-name.ext
... etc
I'm taking here about tins of directories, thousands of files. I'm looking to find a command that makes me able to move the results above to another path, and to create that path once it doesn't exist like below:
Code:
mv /uploads/2010/02/some-file-name.ext /old-files/uploads/2010/02/some-file-name.ext
But I want the executed command to create this path
Code:
/old-files/uploads/2010/02/
If it doesn't exist.
I have a program that takes a relative path as input appends it to a some path string to get the actual path.
Now all I can input is the relative path. So if I want to go one level above my input will be ../mypath.
If I know the depth of the path used internally, I can use .. as many times to go to the root directory and then give the absolute path. But suppose I do not know the depth of the directory, can I construct a relative path string such that it considers it as a relative path. One way could be to have enough .. in the path string so that I can force an absolute path for some maximum depth of path.
Is there some path string syntax that I am not aware of but can achieve this?
Experimenting with shell variables, accidentally deleted the path variable how could I return to the original path value. What kinds of problems will I have if I don't have a path variable.
View 3 Replies View RelatedI have a path c:windowsackup I need this string to be changed into /windows/back/up I used the command -bash-3.00$ echo windackup | sed 's/\//g' but the output is windbackup
View 7 Replies View RelatedCurrent script:-
prefix=user@my-server:
find . -depth -type d -name .git -printf '%h�' | while read -d "" path ; do (
cd "$path" || exit $?
[code]....
How shall i go about changing the absolute path to relative path, so that /home/git/mirror/android/adb/ndk.git gets converted to /mirror/android/adb/ndk.git //echo <command> "$prefix$PWD.git" ?? - anything for relative path?
I am writing a script, in that my requirement is, if all the fill types stored in one directory from that we need to separate different different directories based on the file types.
for example in a directory(anish). 5 different types files
1- directory
2- .txt files
2- .sh files
like that and my requirement is the (1- directory is moved to one new directory(dir) which we are given in the script)and (2 .txt files are moved to another new directory(test) which we are given in the script)and ( 2 .sh files are moved to another new directory(bash) which we are given in the scrip)finally the directory anish should be empty..using bash script.how it is possible !!
i need to prepare a presentation for that i have to copy a table from [URL] to my power point slide. but when i am copying it i am just getting a table with single column. is there a method to import the contents from web page table to my presentation table?
View 2 Replies View RelatedKmail 1.13.2 Problem on startup, error is from nepomuk, data storage. "cannot find Redland backend, nepomuk is disabled until fixed. Also see the following error from the akonadi console:
100503 10:00:15 [Note] Plugin 'ndbcluster' is disabled.
100503 10:00:15 InnoDB: Started; log sequence number 0 31413862
100503 10:00:15 [Warning] Can't open and lock time zone table: Table
'mysql.time_zone_leap_second' doesn't exist trying to live without
[code]....
kernel 2.6.21.5, slackware 12.0
GNU bash 3.1.17
Code:
As you can see, /usr/local/bin is in the path. However, bash does not look for nasm in /usr/local/bin.
If I am root, things go well:
Code:
We purchased a virtual server from GoDaddy (1 month trial) to set up as a proxy for our networks (24 of them). I am having 2 separate issues. The first is I can't configure/install NAT and support is telling me the only way I can is to purchase a dedicated server. Here's the error:
iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 3128 iptables v1.3.5: can't initialize iptables table `nat': Table does not exist (do you need to insmod?) Perhaps iptables or your kernel needs to be upgraded. Here's the fix: [URL] So, what I am hoping to do is configure this by just opening port 3128 directly, and only allowing access from our networks. As a test I did this and allowed only from our office and it did not work. However I can't connect, so I am wondering what I am doing wrong? Here's my squid configuration:
[Code]....
Java applet not loading image with relative path(e.g. images/1.jpg) but loads image with absolute path(i.e. from /root/user/images/1.jpg) . This is a problem when i want to host the applet on web server
View 2 Replies View RelatedIs there a difference between using GPT partition table when formating hard drives and MS-DOS partition table? What are the advantages/disadvantages of using either?
View 2 Replies View Relatedhow to add a path to PATH variable permanently so that it remains persisent even after closing shell and rebooting the system when i added a path, to variable it remained there as long as i didn't closed the shell. but when i reopened it ,changed were undone.
View 2 Replies View RelatedI am trying to figure out how i can add the path /usr/sbin/ into the $PATH variable. I want this to be used from the normal account. I am bored settinh this manualy each time my computer starts.
View 2 Replies View RelatedWhen i do this command
Code:
I get something like that... but how can i put them in that table more nicely?
like:
Code:
Recently I tried to get BGP table dumps from public route servers. I telnetted into one of those public route servers and ran "show ip bgp" command. My question is: how to save the command output to my local machine? I cannot run "show ip bgp > tmp.txt" on the remote route server.
View 1 Replies View RelatedI am trying to increase performance on our system. I wanted to tell iptables not to retain entries into the ip_conntrack. I try to put this int he iptables but I receive the error : seems to have a -t table option.
The entry I'm adding is: -t raw -A PREROUTING -i lo -j NOTRACK
A couple of years ago, I got a 2TB drive and installed Debian on it.
I used the standard installation procedure, as I recall, and created three partitions, which are shown below in the output of "fdisk":
I have a problem with one hard disk,now it says its Unallocated,and i tried to create a new partition on it,but it says that first i need to create a partition table,but when i create one,choosing msdos label,it doesnt to nothing. I used Gparted in Fedora,how can i create a partition table,so i can use my hard disk again?
View 9 Replies View RelatedHow can I disable the PK,UK and FK constraints on all tables in oracle DB.
View 2 Replies View Related