A shell is software that lets users interact with the operating system, usually by typing at a command-line.

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midnight commander subshell - sharing a history file with the shell mc was started from

I am looking for a way to make midnight commander share its subshell history with the parent shell. To be more specific, when I start mc, open its subshell using Control+o and subsequently invoke a ...
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2answers
71 views

Bash: can't type 'e' or I'll get infinitely repeating 'H's

At my workplace, there are several independent networks I work with, all running various versions of RedHat Linux 4, 5, and 6. On one of those networks, I can't use bash (or, as I'm finding out, ...
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17 views

Run shell commands in windows background

Hope you all are in good health. I have a silly question. Can we run shell commands in Windows in background and check it later whether it is still running or not. For example, we have "screen" ...
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1answer
29 views

Executing Perl command from shell script not resulting into anything

I am trying to execute the below command from a shell script: perl -pi -e 's/Ç/|/g' diff_new_old.dat This command gets executed without any errors, but the execution doesn't do the intended ...
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3answers
4k views

Create a bootable pen drive through Linux command line

Can I make a bootable pen drive from a ISO using the Linux command line without installing any extra software? If yes, what are the commands?
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12k views

How to calculate a relative path from two absolute paths in Linux shell?

We have two paths. First one is directory, second either dir or file. /a/b/c and /a/d/e.txt Relative path from first path to second will be: ../../d/e.txt How to calculate that in Linux terminal? ...
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1answer
25 views

How can I make shell autocomplete the beginning of a filepath?

I have a project with a deeply nested folder structure. Most of the time I know the name of the file I want to work with, but the folder path is too long/complicated to type when I want to edit it, ...
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2answers
2k views

How can I tell if OS X is connected to a VPN network from the command line?

How can I tell if OS X is connected to a VPN network from the command line? By running ifconfig without any arguments when I am connected, I see that there is a utun0 interface which appears to be ...
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2answers
37 views

How to tell of a GZip file is still being written while being copied

I am getting a gzip file in a path. Input Folder Path: <server>/input_gate I want to check whether the GZIP file I am getting in this folder are valid? I have used the following command. It ...
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1answer
592 views

sqlmap os-shell help needed

I am asking this question just for educational purposes. I run this command to upload php shell: ./sqlmap.py -u http://target.com/myfile.php?id=1 --os-shell And it succeeded: The shell uploaded ...
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1answer
30 views

netstat showing multiple responses for single listening process

Why does netstat -lntp show multiple responses as 0.0.0.0:22 & :::22 for a single sshd process? Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program ...
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1answer
126 views

Why does root cron job script need 'sudo' to run properly?

I'm running this simple script on my Raspberry Pi to auto update so I can forget about it. It also keeps a log that says whether the update was successful. The script is update.sh: #!/bin/bash echo ...
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6answers
9k views

Linux command to find files changed in last n seconds.

I would like a Linux command to find files changed in last n seconds. Is there a shell script or other tool that I can run from command line interface or gui?
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26 views

Favorites Folder(Shell Folder) was set to %USERPROFILE% as its file location in Windows 8.1

I changed the location on all of my personal folders(shell folders), then realized that when browsing for a file from chrome, the favorites menu in the explorer navigation pane was empty. I went to ...
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1answer
77 views

Determine vulnerable programs affected by glibc's ghost bug?

How do I determine the programs that are installed on my system which could be vulnerable to glibc's ghost bug? (Presuming the system has a vulnerable version of the libc6 library). Posts like How To ...
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5answers
9k views

rsync using regex to include only some files

I am trying to run rsync to copy some files recursively down a path based on their file name pattern, case insensitive. This is what I have done to run rsync: $ rsync -avvz --include ='*/' ...
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5answers
11k views

Windows 7's start menu's search “see more results” is broken

After searching in my start menu and clicking to "see more results", I got an error dialog: It "seems" that it should be search-ms:query=document an not search:query=document but where can I fix ...
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3answers
621 views

How to delete all hidden .swp files from terminal

How can I delete all .swp files? I tried rm *.swp but I got rm: *.swp: No such file or directory rwxr-xr-x 16 teacher staff 544 Jan 17 13:19 . drwxr-xr-x 19 teacher staff 646 Jan 16 12:48 ...
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1answer
172 views

Copy all files in a folder which have the same name as files in a separate folder

Let me explain: I am going through a huge icon set, and choosing the icons I like. I have chosen maybe 250 out of 3000 icons. The way the icons are split up are like this: Icons -> 16x16 ...
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8answers
37k views

How to resume CUPS printer from command line?

I have printer in CUPS that due to driver problems (HP 1010) from time to time goes into pause. I would like to write a shell script that will execute once per hour to resume a printer in CUPS. But ...
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6answers
365 views

Is it possible to delete an MP3 file currently played in mplayer?

I would like to remove an MP3 file that is currently being played back in mplayer. If possible I would like to do it with an mplayer command. So that I don't have to quit mplayer and delete this file ...
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10 views

Linux cannot work with file “-c” [duplicate]

I have this file created accidently I guess but cannot handle it: -rw-r--r-- 1 root root 329 Dec 11 08:59 -c :~# cat "-c" cat: invalid option -- 'c' :~# cat '-c' cat: invalid option -- 'c' :~# ...
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1answer
39 views

Environment variables on Linux-like systems

How to set environment variables for a user in most generic way that is independent of shell environment variables (like profile for Bourne-like shells, bahsrc, zshrc, zshenv, ..)? The idea is to set ...
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1answer
58 views

Inconsistencies on MD5 checksums

I am trying to obtain the md5 hash of a string. Said string consists of only uppercase and lowercase letters and digits. No other characters, including spaces and newlines. The string is inputted via ...
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28 views

Windows shell: title command argument too long. How can I enlarge?

I need to change the title of the shell (classic cmd) window in my Windows 7 SP1, but it seems to have a length limitation for some too long strings: C:\Users\Luis>title ...
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4answers
5k views

How do you run the previous command in emacs shell?

I am in terminal mode on Ubuntu, and I'm running emacs with 2 buffers open, one is a ruby file, and the other is a shell (opened by typing M-x shell ), and when I switch to the shell buffer, I want to ...
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1answer
42 views

Set nano as a default editor over Vim [duplicate]

Every time I login to ssh terminal to edit files I execute the command export EDITOR=nano How Could I set nano as default editor so I shouldn't execute this command anymore
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10 views

Calling guest scripts in Oracle VirtualBox

I'm using Oracle VirtualBox. I want to run a script from the host computer to execute the following steps: Start the virtual machine Execute a script on the virtual machine Close the virtual machine ...
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1answer
141 views

Make Applescript wait for an application to be closed before running a shell script

I have an applet i made using Applescript which opens an Application and then once it's loaded runs a shell script which unload's Spotlight. I need to make it then wait for me to finish using relevant ...
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1answer
40 views

How can I write a script to kill process that runs for a few hours?

I run python script from cron every hour on CentOS 5 and see some processes keep running for a few hours I would like to run a script every few hours to kill those processes. How can I write the ...
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30 views

Piped processes in upstart shell script continue running after stopping

I have an upstart script on my CentOS box that runs a shell script. The shell script runs a netcat command whose output is piped through a couple other commands and then ends up in a file. When I ...
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8answers
3k views

Growl Notifications for Shell Task Completion

(OSX Specific) I, like many others besides myself often find myself kicking off a process in the shell that takes a minute or two to complete (a large svn commit for example). During that time, I ...
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19 views

Configure a default shell script environment

Is there any way to change the default environment when running sh -c <command>? It appears that .cshrc is not called when running command with a -c flag.
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33 views

How to change default shell for a network user?

I am working with Ubuntu and I would like to change my default shell to z shell. I cannot use the chsh -s /bin/zsh or chsh-s /bin/sh myuser command since my user name does not exist in /etc/passwd and ...
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4answers
32k views

What does the dot mean at the end of `-rw-r--r--`? How do you set it with `chmod`?

I see that some of the files in my directories under Linux have a . at the end of the permissions listing. What does the dot mean at the end of -rw-r--r--? How do you set it with chmod?
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47 views

Error using Putty when connected to a Windows server 2003

I am using Putty to connect to Freesshd running on windows server 2003. I can connect ok, the server log confirms that and confirms shell service is granted. At the putty end I get a terminal ...
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4answers
601 views

Is it possible to print out the shell expansion?

I know there is a specific set of rules that shell expand the commands user typed. (let's talk about bash shell.) Is it possible to print out a command in the form after shell expansion? It seems to ...
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51 views

Is there a Unicode-aware LC_COLLATE sort order which respects punctuation?

As far as I can tell, setting the environment variable LC_COLLATE=en_US.utf8 changes four things compared to LC_COLLATE=c, regarding how programs like ls will sort files: Unicode characters are ...
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1answer
31 views

Bash script failure

I have this script. It works fine on one of system but it's giving some error on another machine: 1 #!/bin/bash 2 EXEC_DIR=`dirname ${0}` 3 source ${EXEC_DIR}/config.sh 4 5 ...
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1answer
64 views

Sed replace line stored in a variable

I need to find a line that starts with mysql.unmetric.twt.url and replace the entire line with line stored in the variable ip. ...
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1answer
103 views

Variables in linux shell script and user input

Hello I'm trying to make a short script that is supposed to take user input in the form of a file ending like .txt or .odt and type out how many files with that ending the directory contained. So it ...
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11answers
124k views

How do i select all text in Vi/Vim?

I always use vi for editing config files. Today I wanted to select all the text in a file (around 1000 lines), copy it, then paste into Google Docs. How can I do that?
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29 views

appying dos2unix on all files under folder

I am trying to appply dos2unix on all files. find $WORKSPACE/itrp-sr -type f -exec unix2dos.exe {} \; but is resulting in an error 1 [main] find 3468 fork: child -1 - forked process 4524 died ...
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2answers
22 views

Using “for in” to iterates files but except specified one(s) in shell

I found a post here How can I run mogrify, but prefix the filename? which is talking about resizing a batch of images. In it there's a for in shell script. How do I except some single file(s) while ...
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1answer
31 views

Is it possible to 'source' the output of a python script

I have a large python codebase that knows a lot about my working environment. I would like to use it to set up my ZSH session when i open a terminal window. The python script would output text that ...
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92 views

How to open a local file with a query string appended to it in the default browser?

I want to do something like this from a shell script: $ open 'foo.html?foo=bar' Sadly that fails, as it looks for a file named foo.html?foo=bar instead of foo.html before opening the browser: The ...
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2answers
45 views

Find availble disk space in unix without parsing `df` output

When I type df -k ., I get the following output Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda2 16512936 8650196 7023932 56% / What I do is tail the last line and ...
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3answers
2k views

re-use '~/.profile` for Fish?

(I'm talking about the shell Fish, esp. Fish's Fish.) For Bash/ZSH, I had ~/.profile with some exports, aliases and other stuff. I don't want to have a separate config for environment variables for ...
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1answer
62 views

Why variables in shell are not inherited by sub-shell now that the sub-shell is implemented by fork?

When running shell command in shell scripts, a sub shell process is generated. Doesn't the process is generated by fork function? Why the variables that are not exported are not inherited? In fork, ...
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17 views

getfattr format output to separate values of files by space or comma

I am using setfattr to store tags of files. Like: setfattr --name=user.tags --value="tag1, tag2" test2 setfattr --name=user.tags --value="tag3, tag2" test3 But getfattr --recursive --only-values -n ...