A script is a sequence of commands or instructions that are executed by an interpreter program rather than compiled into a standalone executable program.

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Ubuntu script not working as desired

http://bernaerts.dyndns.org/linux/74-ubuntu/309-ubuntu-dual-display-monitor-position-lost The above link contains an Ubuntu script to reset the second monitor position, however when used under ...
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1answer
17 views

how to compare a decimal value with a integer in shell scripting? [duplicate]

Could anyone please help me for comparing a decimal value with a integer in shell scripting? Example: i=1 j=1.2 if [$j -gt $i];then echo "growth" else echo "None of the condition met" fi Im ...
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1answer
19 views

Batch rename “case duplicates”

I have a folder on my Linux system that is cross-synchronized with other computers, some of them with Windows. The problem is that in that folder there are files that are "case duplicates", i.e. their ...
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1answer
47 views

Shell script runs diffrently based on working directory.

I have a script which runs differently based on current working directory. Basically it processes an .ini file and takes parameters from it and runs mysql backup. Script is running as root user. ...
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1answer
23 views

Why do some apps leave KeyRelease events to be consumed by next focused app/window

I'm trying to wrap dmenu within some script to feed it input and act on it, however when pressing the Return key to select some dmenu input, a KeyRelease event gets sent to whatever window is focused ...
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16 views

Add extra parameter for text label or just echo it outside the call?

I have written a program that allows me to test my functions. I call it like this: do_test function_name expected_result parm1 parm2 For example do_test add_2_nums 10 5 5 Now I need to call the ...
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1answer
970 views

Using alias in another script (ksh)

I'm writing a ksh script, and I'd like to use a command define by an alias in my .profile file, in my script. I tried this command in the folder containing my script, and it works. However, in my ...
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29 views

Script for compare two file permissions

create dir, create two files with diff permission. Now write a script to test the permisiion of these two files. If its same then display the filename with its permission. if not display the ...
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25 views

Why the output is not written to log from expect script

I am trying to write the output of the netcat command including the command also to a file by logging into remote servers. But it is not writing. What am I missing ? #!/usr/bin/expect -f set user ...
6
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1answer
548 views

Can capabilities be used in scripts without setcap'ing the interpreter binary?

Right now I'm using cap_net_bind_service MY_USERNAME in /etc/security/capability.conf. Now I just need to set cap_net_bind_service+i on the interpreter of my favouite scripting language to be able to ...
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2answers
63 views

What do i have to consider to write a script that reacts on a keypress?

I know i can read within a script something into a variable, like this: variable = read But i have to press enter in order to submit the value into the variable. What do i have to know in order to ...
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1answer
1k views

How to execute Netscaler commands through a remote machine via SSH connection

I have been trying to execute some NetScaler commands like "bind" & "unbind" through a Linux Box via an SSH Connection. Now the Problem is, Manually we are able to enter & execute commands on ...
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3answers
3k views

How to escape a single quote? [duplicate]

This works fine: sed -i 's# @driver.find_element(:xpath, "//a\[contains(@href,##' temp_spec.rb against a source of @driver.find_element(:xpath, "//a[contains(@href,'change_district')]").click ...
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2answers
51 views

how to save the contents of a webpage in a file using shell script

how to save the contents of a webpage in a file using shell script. Web page is using URL, username and password to open. curl -O odcview:password ...
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4answers
23k views

File extensions for unix shell scripts

On wikipedia, the article for .sh says: For the .sh file extension type, see Bourne shell. How about other unix shells? I know that the shebang is used inside the file to indicate an ...
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2answers
4k views

grep output of expect script

I'm trying to run some expect language, and grep/parse the output all in one script. I want to grep the output of and look for "error" (I should note that standard linux commands like awk, sed, grep, ...
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19 views

programmatically alter kde file associations

Problem: In kde I want to remove a particular file association from every file type Details: I wanted to try out clamTk as a companion to clamAv. It didn't suit my needs so I uninstalled the ...
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2answers
26 views

How can I copy and move a sequential subset of files?

I have a directory containing 1772 files named PRC0001, PRC002,... up to PRC1772. How can I copy a subset, for example PRC0257 to PRC1516 to a different directory? I am trying to do this for several ...
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1answer
753 views

How to execute grep in tcl for getting XYZ-123 type pattern

How can I execute this grep command in TCL? grep '[A-Z][A-Z][A-Z]\-[0-9][0-9][0-9]' file1 > file2
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5answers
200 views

cut for key-value pairs

I am looking for an easy way to cut key-value pairs (where the key is unique and specified) from text, much like how cut can be used to cut a specified column in a CSV file. The keys I'm looking for ...
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3answers
260 views

Run command automatically when files are copied into a directory

I have two folders called: A and B, in different paths on the same computer. When I add any new file(s) into folder A, I want to copy it to folder B automatically. My folders: /auto/std1/nat1/A ...
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4answers
77 views

Script to delete files that don't match certain filenames

I have a folder with 500,000 images, sorted in subfolders by year and month. I'd like to create a script that does this: If the filename does not match any of the filenames in names.log then delete ...
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2answers
35 views

script for substition incremental

I have 4 machines, every machine(centos) has a ifcfg-bond1 with identical ip address 10.0.0.3 How to using bash and sed substituting 10.0.0.3 with a incremental value? I want to obtain something like ...
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1answer
23 views

Possible to deliver centrally configured login scripts on Linux?

In Windows you can assign login scripts to users which run whenever they log into a system which allowing admins to do things like map drives/printers and generally do anything for which there isn't a ...
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1answer
68 views

bash if, then and else statement

I am learning bash, I ran into a small problem when trying to write a small script #!/bin/bash clear read num if [ "$num" -eq 2 ] then [ -d "/etc/passwd" ] | sudo cp /etc/passwd /home echo ...
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2answers
121 views

Bash menu with multiple parameters in one row

I have searched a couple of days and still didn't found the answer. I hope that you can point me in right direction. I would like to know how to write a bash script with a options, that can be ...
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1answer
106 views

print the content of files

I have a list of parent folders, sub folders and files inside the folders and the sub folders. I used the following command line to list the content of the parent folders and the sub folders: tree ...
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7answers
180 views

What is the purpose of having two variables ($@,$*) to transmit the arguments of a command into a script? [duplicate]

I have read of the special variables used in a script $@ and $*. As far as I understand, the arguments used while executing the script are stored into two special variables, once all arguments into $@ ...
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2answers
1k views

Programatically use visudo to edit sudoers?

I have a sudoers file stored in our svn repo. I want to svn export it to /etc/sudoers but can't do it because sudo detects that it was not edited by visudo and throws syntax errors. What exactly does ...
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3answers
4k views

Javascript to HTML converter?

Take for example this snippet of code on a web page. <html><body> <script language="javascript"> document.write("The cat"); document.write(" sat on the mat"); </script> ...
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4answers
507 views

Why is it “while kill -0 $PID” and not “until kill -0 $PID”?

I may be being daft here, but if I want to do something while a process is running, why do I do: while kill -0 $PID do #... done instead of until kill -0 $PID do #... done ? kill -0 ...
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2answers
24 views

Script to backup home directory creating a compressed tar file in the /var/local directory

#!/bin/bash tar -czvf backup.tar.gz /home/administrator Having problems with making sure the file is created in the /var/local directory.
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4answers
2k views

Is it possible to execute a VIM script in a non-interactive mode?

The Gnats bug tracker has a command (edit-pr) that opens a ticket in $EDITOR. My $EDITOR is VIM, and when this command opens the ticket in $EDITOR, I'd like to automatically perform some scripted ...
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15 views

Dual partition scheme with GRUB

I would like to use a dual partition update scheme for some servers like CoreOS is doing here. Basically the process is the following: The computer has partition A and B, each with a full Linux ...
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1answer
34 views

Saving result between script executions

I have a script in /opt which is called regularly by Cron. The script needs to write and read a status flag between executions. In what directory should I store the flag? I'm thinking that /tmp might ...
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1answer
37 views

bash: getting integer expression expected

Here is the piece of code that gives the problem: if [ " ls -l ~/sysbackups | wc -l " -gt 5] What to do?
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1answer
51 views

ssh and run script on remote host and answer expect answer automate

The ssh from server0 to (server1,server2,server3) (no password need to SSH (trust exists between all servers and private key exists on all servers)) but a remote script on server (server1,server2 ...
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1answer
52 views

Run a Vim command from a bash script

This is related to a question I asked earlier but I would like to keep it separate in case anyone else can find use in it. I have a command that I am running on a file called dummy.out from the ...
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5answers
2k views

Replacing text from a list of replacements. Added complication: backslashes

I have a file A that contains pairs of strings, one per line: \old1 \new1 \old2 \new2 ..... I would like to iterate over file A, and for each line perform the replacement (e.g. "\old1 -> \new1") ...
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2answers
56 views

Bash Scripting VIM commands

I have a few files that I have an annoyingly repetitive group of VIM commands to apply to. They are basic VIM commands just to delete some lines which are not supported by the process I need the files ...
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2answers
5k views

Trouble in script with spaces in filename

I've got a script that scp's a file from remote host back to local. Sometimes the file names contain spaces. scp does not like spaces in its file names. For some reason my attempts at handling the ...
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1answer
30 views

Python script: wait until job in tmux session has completed

I am trying to continuously run a python script with random parameters from another python script, where each run is in its own tmux session. A very simplified overview of what I'm trying to do goes ...
2
votes
3answers
114 views

Processing input line by line (with empty lines) from shell

In a shell script, I need to parse the output of a command line-by-line. The output may include empty lines, and these are relevant. I am using ash, not bash, so cannot resort to process substitution. ...
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1answer
22 views

Auto-start multiple background user sessions in Linux Mint

I could use some help with what I think is a basic request on the newest edition of Linux Mint (which I think would also be applicable to Ubuntu). I have a home system with 3GB of RAM and accounts ...
2
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6answers
95 views

Scripting to split a single CSV row into multiple

I need a script that can take a CSV file with that has a column of semicolon-delimited attributes, and break it into multiple rows to normalize that multi-valued attribute? Here is the scenario: ...
1
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1answer
30 views

value too great for base (error token is “08”)

Trying to do quiz 'max sum of 2 from grid' Can't figure out how to get around the error below. Feels like I'm missing something. Once I find out what I can update the question to be more general ...
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1answer
61 views

script needs to add another loop

script which runs netstat -tulpun | grep -i port_from_the_list & takes the output for running the next command I need to run 2 command on all the server mentioned in the list. server: Jan port: ...
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2answers
424 views

securely automating a script which requires a key to do its task

I have a script that downloads bank transactions to store in a database. To get these transactions requires a password for each account. The database is encrypted and requires a key to access it. All ...
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3answers
254 views

Read longest line in file using while read loop?

I've been googling but I can't find any scripts that uses the while loop to read the lines. I'm stuck and I'm not sure on where to start Heres the question: Write a bash script longestline.sh that ...
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4answers
3k views

How to capture error message from executed command?

I was tasked to create an automated server hardening script and one thing that they need is a report of all the output of each command executed. I want to store the error message inside a string and ...