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1500 questions
187
votes
7 answers
How do I do a ls and then sort the results by date created?
In what order are the dated ordered by? Certainly not alphanumeric order.
ls -lt sorts by modification time. But I need creation time.
InquilineKea
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186
votes
14 answers
Recover deleted files on Linux
Is there a command to recover/undelete deleted files by rm?
rm -rf /path/to/myfile
How can I recover myfile? If there is a tool to do this, how can I use it?
pylover
- 3,328
- 6
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- 26
186
votes
7 answers
How can I have `date` output the time from a different time zone?
I have a server running with the time zone set to UTC. It seemed like that was generally a good practice (please correct me if I'm wrong).
Anyhow, one of the servers I connect to, in order to scp files, is running on EDT and stores files that I need…
cwd
- 44,479
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- 167
186
votes
14 answers
How can I move files and view the progress (e.g. with a progress bar)?
When moving large directories using mv, is there a way to view the progress (%)?
The cp command on gentoo had a -g switch that showed the progress.
letronje
- 2,045
- 2
- 14
- 7
186
votes
4 answers
Where do executables look for shared objects at runtime?
I understand how to define include shared objects at linking/compile time. However, I still wonder how do executables look for the shared object (*.so libraries) at execution time.
For instance, my app a.out calls functions defined in the lib.so…
rahmu
- 19,673
- 28
- 87
- 128
185
votes
2 answers
How to create nested directory in a single command?
Apparently, it's not possible to create a nested directory in a single command?
$ sudo mkdir x/y/z
mkdir: cannot create directory 'x/y/z': No such file or directory
BaltoStar
- 2,331
- 3
- 16
- 11
185
votes
21 answers
Determine the size of a block device
How can I find out the size of a block device, such as /dev/sda? Running ls -l gives no useful information.
lfaraone
- 1,952
- 2
- 12
- 8
185
votes
7 answers
How do I delete the first n lines of an ascii file using shell commands?
I have multiple files that contain ascii text information in the first 5-10 lines, followed by well-tabulated matrix information. In a shell script, I want to remove these first few lines of text so that I can use the pure matrix information in…
Paul
- 9,163
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184
votes
4 answers
Good detailed explanation of /etc/network/interfaces syntax?
I understood the very basic concept of how to use /etc/network/interfaces, but all I find online are examples, example after example, which I can copy-paste from. What I miss is an explanation of the syntax, an explanation of the meaning of the…
Foo Bar
- 3,462
- 7
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- 28
183
votes
3 answers
Timezone setting in Linux
I'm setting the timezone to GMT+6 on my Linux machine by copying the zoneinfo file to /etc/localtime, but the date command is still showing the time as UTCtime-6. Can any one explain to me this behavior?
I'm assuming the date command should display…
Rahul Dhobi
- 2,037
- 3
- 14
- 11
182
votes
5 answers
How to do I convert an animated gif to an mp4 or mv4 on the command line?
What command would I use to convert an mp4 or mv4 video file to an animated gif, and vice versa. That is, convert a animated gif to a mp4 or mv4.
stinkypyper
182
votes
8 answers
Viewing all iptables rules
Is there a way to view iptables rules in a bit more detail?
I recently added masquerade to a range of IPs:
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE
service iptables save
service iptables restart
Which has done what I want…
TheLovelySausage
- 4,183
- 9
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- 49
182
votes
6 answers
Trying to SSH to local VM Ubuntu with Putty
I have set up a VM of Ubuntu server, have installed OpenSSH, and am now trying to connect to it using Putty. Within Putty, under "Host name", I put "Ubuntu", given this is what I thought it was called when I set up the VM. However, I just get the…
wickywills
- 2,093
- 3
- 14
- 18
181
votes
1 answer
How to clean log file?
Is there a better way to clean the log file? I usually delete the old logfile and create a new logfile and I am looking for a shorter type/bash/command program. How can I use an alias?
Micromega
- 4,201
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- 34
181
votes
8 answers
How do I limit the number of files printed by ls?
Is there a way to limit the quantity of listed files on a ls command?
I've seen:
ls | head -4
but to get head or tail to be executed I need to wait for ls to finish execution,
and with directories with an enourmous quantity of files that can take…
AndreDurao
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- 8