In shell scripting, a shell such as bash runs a file containing a list of commands (a script). The script is effectively a program and the shell is its interpreter.

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27 views

How to get up time for the terminal

How to get the uptime from. The terminal. And in a bash file but only the uptime no other infomAtion I would like it to be on one line
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2answers
37 views

Search csv file column

Is there a way to search the content of a specific column of a csv file using the terminal. But that it still returns all the information of the rest of the columns. I want to be able to search for a ...
1
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1answer
36 views

Is there a way to reprogram the thinkvantage button to assign a shell bash program to it?

Is there a way to reprogram the lenovo think vantage button to open and run a shell bash program on ubuntu 14.04 lts? I have tried system preferences > keyboard >shortcuts > custom and assigned a ...
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0answers
31 views

How to make a shell bash login [closed]

How to make a login page using shell bash and a csv file with the user names and passwords in This is then to be able to run some functions Ubuntu 14.04 Desktop
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0answers
15 views

display number of packets

need to write a script that takes and interface as parameter and prints to stdout like this: interface TX: no.of tx packs sent RX: no of rx packs sent this is what i have written, but it prints the ...
2
votes
3answers
29 views

Script not having permission to write

Hello i have to write a script with the name setip that can be ran like this: ./setip ip mask ,and that must set the ip ip and the mask mask on the lo1 interface.this is the content of my script, but ...
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0answers
18 views

Simple Mount Script Not Working?

just really not understanding what's wrong here. I had a script that worked fine on 14.04, but I screwed up something on there and accidentally removed some system apps and made it fail to boot. So, I ...
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0answers
16 views

How to get a list (from shell) of Icon Themes installed?

I'm developing a simple script for change the icon theme with Unity. How could I know all the current (Ubuntu & Unity) System Icon Themes with a shell command? There are a few folders in ...
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0answers
23 views

How to check whether a variable contains a url or an IP address? [closed]

I have a variable say address. I want to check the content in that variable. If it contains an IP address then It should print IP, else if it contains a url then it should print url. How can I do ...
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2answers
35 views

Shell script to copy a specific file from one folder to another with date

I want to write a script which look for a specific file in a specific folder. file name and location will be pre-define in the script. A loop will run, if the file exist, it will copy that file to ...
0
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0answers
30 views

How can i change a script to a system command? [duplicate]

If I have a script, let's say shebang.sh. To execute, I have to do './home/user/Desktop/shebang.sh ' How can I make it 'shebang' From any directory?
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0answers
13 views

x-shellscript opening with gedit

I've downlodaded this plymouth theme, but when I try running the install-orb script, it opens in gedit I already checked "Allow executing file as program" in properties, but it won't solve. @edit ...
2
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0answers
42 views

How to have a video player resume from where I last left off?

I'd like to be able to launch a video player (VLC, SMPlayer) via Terminal, using some command like resume_media and then it will automatically find the most recently played media file (.mkv, mp4 etc.) ...
0
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1answer
32 views

How to run a script on a remote computer from a local computer over ssh and save the ouput on the local computer to analyze further?

Lets say i have a script in my local computer like the below one which will list files of a directory on my remote computer and run a "for" loop to save the files on my local computer. Then a check ...
1
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1answer
51 views

Problem with shell script to reboot computer/switch to windows

I have little experience with linux and hardly ever wrote an shell script, but needed a workstation with both windows and linux to do certain calculations. The workstation is however mostly used ...
1
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1answer
21 views

How a Script exit when a software does not install properly?

i got idea form the link (How do I write an application install shell script?) and started to wrtie script for installing software in ubunt automatically. But in case if the software does not install ...
0
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0answers
15 views

How to batch download youtube-dl trailer based on a folder name?

I have some folders with movies and I am trying to figure out how to download trailers from youtube Folder structure: |-Movie Name #1 (2008) |-Movie Name #2 (2013) |-..... Trailer file: ...
0
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1answer
30 views

Can somone help me make this script more readable?

SRC="/src" export DEST="/dest" find "${SRC}" -iname '*' -type f -exec bash -c 'EXT="${0##*.}"; EXT=${EXT,,}; if [[ "${EXT}" == *"/"* ]]; then EXT="no_extension"; fi; mkdir -p "${DEST}/${EXT}"; rsync ...
6
votes
1answer
103 views

Executing a script when inserting a flash drive

How can I write a script that fires on an event? When I insert an USB flash drive, Ubuntu mounts it and automatically opens Nautilus. When this happens with a specific flash drive, I'd like to open a ...
1
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0answers
24 views

How to terminate server process?

I just created automation sending an email using a shell script, but it always running and send me an email every sec to my email. I'm using PID and that process name to terminate it, I'm writing ...
2
votes
1answer
80 views

Shell script for list of users by groups

I want to write a shell script that generates a list of users. for each user display the username and ID and all groups the user is a member of it means like GROUPS command but for all users and with ...
3
votes
4answers
249 views

How to select and print IP address from a set of strings?

I have a sentence whic contains an IP address. For example, This sentence contains an ip number 1.2.3.4 and port number 50, i want to print the IP address only. From the above sentence, I want to ...
0
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1answer
17 views

Where can I find a good tutorial to take me through the baby steps of shell scripting? [closed]

I am an extremely poor programmer who has got to do this. I need a really basic tutorial that builds me up to being able to write shell scripts but have found that not everything I stumble upon is ...
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3answers
90 views

copy n number of files from one folder to another folder

I have a folder of n number of files. I need to move n/2(or)n/3 files from that folder to any other folder. How to set the value of n so that it will move exact those number of files?
2
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3answers
49 views

create a .tar file of all latest files in the directories

I am in a directory A. This has a lot of sub directories B, C, D. Each sub directories will have a list of files. I need to create a .tar file of all the latest file in each subdirectory. Example: ...
1
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1answer
27 views

How to retain back to the last permission of file or directory

I have accidentally changed the permission of a file now I want that file to back to the last permission state but how to do this? Is there any procedure or tool or any command line script which keep ...
5
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3answers
652 views

What is the point of the bash Null-operator “:”, colon?

What is the point of the "null" operator in a BASH script? I understand that it is used as a placeholder following an if command when you have nothing to say, but need a command to allow the program ...
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votes
2answers
56 views

Shell Script to check for subdirectory [closed]

A. I used the following code to get the modified date of a file. But this is also selecting the subdirectories and thus returning an error. How can I fix this? for file in $1/*; do echo `stat ...
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2answers
99 views

Shell script file (.sh) does not run, and throws an error

I am new to linux, and I have a shell script (.sh) file I on my Desktop that I want to run. These are the steps that I did: This is the content of the test.sh file on my Desktop: #!bin/bash ...
0
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1answer
21 views

Can an sh (or index file) be used in CCC profiles instead of the binary?

I am trying to set custom graphical options in AMD Catalyst Control Center for a specific program. There is a single sh file that launches it but there are 4 completely different binaries (not ...
-1
votes
1answer
50 views

Copying 100 files at a time using terminal [duplicate]

Is there an option to copy first 100 files from a directory to another location using the cp command? If not is there any other way to do this? Do i need to write a script?
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0answers
14 views

Count total no of functions in .h files

I want to have a count of total exposed functions in my module? I tried grep -rn "(" *.h|wc -l but I am not getting exact answer How do I count total number of global functions in my module?
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0answers
17 views

Dual booting thwarted by rogue keyboard presses?

End goal: successfully dual boot Windows 8.1 and Ubuntu 14.04, both are already installed and working. I just can't get to the bootloader (I think it's called) to choose to go back to my Windows ...
1
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0answers
33 views

Unable to connect to X11 display. is $DISPLAY set? - Yes, it is

I'm trying to run this in my /etc/init.d/rc.local. I had to manually add the exit 0 because it wasn't there by default if that makes any difference. cd /home/john/xcape && ./xcape -e ...
0
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2answers
47 views

if stament in shell script

How write in if [ -z $str1 && -z $str2 ], "&&" doesn't work, if write [ -z $str1 ] this is work. I want to once two string #!/bin/bash echo "Enter first string" read str1 echo ...
3
votes
2answers
139 views

For loop syntax bash script

Is there a way we can implement some thing like this in bash script ? pureips="10.3.1.111 10.3.1.112 10.3.1.114"; pureservers="a b c"; for ip,server in $pureips,$pureservers; do echo "$server | ...
0
votes
1answer
113 views

curl .gz file and pipe it for decompression

I am trying to download some .gz files (N.B. not .tar.gz ones) from given URLs and decompress them to overwrite existing files, if any. For each individual download, I tried the following: curl -O ...
0
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2answers
64 views

Copy a word from the html file of a web page using shell script

I am trying to write a shell script which should crawl into a web page and fetch a particular character/phrase from its html and display it. Particular character means, for example if the html of the ...
0
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0answers
34 views

Shell script to check url

I am trying to write a shell script to check for the existence of a particular directory in a particular domain name. For example, I have a web site named www.example.com. I want to check whether the ...
1
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2answers
30 views

Why sudo could not get the right PATH environment?

I run command sudo hadoop fs -ls /, it said hadoop command is not found. But I have already set it in /etc/profile, and also I verify it by switch to user root. What happens here ?
1
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1answer
48 views

How to create your own commands that can be used anywhere [duplicate]

I am new to linux, and I am learning bash scripting at the moment. I was wondering how I would save my script as a command and then be able to call that command anywhere in the terminal. So i could ...
0
votes
1answer
127 views

How to obtain and install shc?

shc is a compiler that compiles bash scripts into Linux executables. However, I can't find an official site and can't find it in the Ubuntu repos either. What is the official site, and why is it not ...
3
votes
3answers
432 views

For loop with unix find

Trying to do a mass convert from M4A to OGG in a large music collection, I have: #!/bin/sh for i in `find /home/family/Music -name *.m4a -print0` #do ffmpeg -i "$i" -acodec libvorbis -aq 6 -vn -ac ...
2
votes
6answers
1k views

How to command grep not to display the searched string? [duplicate]

I want to print a part of a line in a file. The whole line looks like this. Path=fy2tbaj8.default-1404984419419 I want to print only the characters after Path=. I have tried grep Path filename | ...
0
votes
1answer
204 views

How to fix invalid identifier error after setting environment variables?

I'm trying to setup cocos2dx in Ubuntu 14.04 LTS but after setting the environmental variables (in .bashrc) I start getting this error: bash: export: dev/cocos2d-x-3.2/tools/cocos2d-console/bin': not ...
2
votes
3answers
99 views

Search for a files that matches another file name in another folder

I have some files in a folder, which are named ***_code_c**** (where * represents any letter or number). I have another folder that have many files, folders and subfolders inside it. What I want to do ...
5
votes
2answers
385 views

How to do: underline, bold, italic, strikethrough, color, background, and size in Gnome Terminal?

How to do: underline, bold, italic, strikethrough, and color in Gnome Terminal? Bold Italic u̲n̲d̲e̲r̲l̲i̲n̲e̲ s̶t̶r̶i̶k̶e̶ ̶i̶t̶ ̶l̶i̶k̶̶e̶ ̶i̶t̶s̶ ̶h̶o̶t Color background font < (its mono ...
0
votes
0answers
211 views

Using a samba path (smb://server/…) to check if a folder/file exists

I have a samba path, f.e. smb://server/path1/path2/ which is located when mounted at /var/run/user/1000/gvfs/smb-share:server=server,share=path1/path2/. I can easily check via filesystem path if the ...
1
vote
3answers
126 views

How to get list of all non-removable disk device names (SSD/HDD and SATA/IDE only)?

I need a list of all disk device names (not USB or CD ROM) in the following form DRIVES='sda sdb' so that I can loop through them in a bash script. Ideal solution would not have to install a special ...
2
votes
2answers
258 views

CVE-2014-6271 over ssh example attack?

I've been reading about the CVE-2014-6271 bug on lots of pages, but I'm still not able to understand how exactly is it possible to exploit it over ssh. From all I've read, I couldn't find an example ...