1,978 Topics
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| | Why is it that no matter how long I put the sleep command or loop, cat is unable to read the file, even though the file already exsists? Is there any way of reliably waiting for the whois to finish, write to file and then read that the file exsists?? … |
| | Hi all I want to login a machine remotely and doing some operation on the remote machine and then exit the remote machine by a unix shell script. I can login these two machines without passward. How can I do that? For example, my script is on machine1. that script …  |
| | I am new to the awk scripts. I am confused about the delimiter concept in the awk script. say delimiter is , or | or anything, then a new line is treated as a next line ? like e.g. 00|01|05|05|03|13|12|04|06|80| 03|01|01|00|52|10|12|11|05|12| So there are 10 fields in each row, and … |
 | I was wondering how could I solve this problem, I have a php project in which I have tables, but I didn't use `<thead>` and `<tbody>`, but now I am using DataTable jquery plugin, and it needs that the tables have them, so I need to modify all of my … |
| | hi all only the weirdest thing happened with me just now. I was debugging a shell script and I found that a step that was supposed to execute later ws getting executed prior to another step for no reason. You know any ? i mean have a look at the … |
| | When using the Grep command to find a search string in a set of files, is there a way to dump the results to a text file? Also is there a switch for the Grep command that provides cleaner results for better readability, such as a line feed between each …  |
| | occasionally I run a backup of my phpbb forum files from the Shell command line: zip -r forum_backup ~/public_html/forum/* I'd like to add date elements to the file name, so that the zip file created is automatically formed as forum_backup_05182013.zip or something similar Thanks |
| | Hi I am trying to run a python script which has this code snippet: process = subprocess.Popen('./start_ws.pl') process.wait() os.system('make') The perl script started changes environmental variables and enters into new subshell. After entering into new subshell, the commands below script os.system('make') goes unnoticed.They get executed only if i exit from …  |
| | i have an awk script and in the end section i create my table data with printf and i want to sort it so i used pipe then sort i am calling it like this awk -f awkscript file in bash i can get it to work the way i … |
 | I'm no pro when it comes to BASH, but I have been known to shell-script my way out of a problem here and there. One of the useful things you can do is a for-loop, whether it be used on file names, script arguments, or just a string of words. … |
| | I'm no pro when it comes to BASH, but I have been known to shell-script my way out of a problem here and there. One of the useful things you can do is a for-loop, whether it be used on file names, script arguments, or just a string of words. … |
| | This is another useful script I came across. It prints a color-code chart in your terminal. It can help you find the color-code you are looking for, or view the current color-scheme you are using (people use it on reddit/r/unixporn to show off their system's theme, I use it to … |
| | I didn't write this, the credits are in the code. It's a code-golf version, and I'm sorry about that. I am trying to 'decode' it but I don't have the skills, so the 'decoded' version doesn't have the right colors. This is an example of what you can do with … |
| | hi,a question .. why does my script work as sh script.sh and not as ./script.sh ?? also,i was trying to write a script that would filter out a pattern in a .txt file and display the count of the same. Say my pattern is king, and there are 4 "king"s … |
 | Hello everyone. I am trying to compile this simple code using gcc under Cygwin terminal. //A function that just returns a value// int my_function() { return 0xbaba; } I saved the code as basic.c I issue the command $gcc basic.c in the Cygwin terminal And I get the error: gcc: … |
| | hi New to shell scripting. While trying hands at it I came across the operators -z -o in the if block. Any relevant info would be appreciated **if [ -z "$xa_" -o "$va_" == "yes" ]** cheers guys |
| | vi is basically used independently .....but what if vi commands are used in shell script ? I am trying to accomplish functionality of mv command using a shell script. what I want is to yank whole text of one file1 and paste it in file2. this all should happen in … |
 | I'M wanting to write my own command/script for compiling my c++ files. I use g++ -g -Wall filename.cpp -o filename I'M trying to figure out how I can trip of the last four characters (.cpp) from a string. Any ideas? |
| | Hi Any one can guide me to the right direction. I trying to run my scripts from anywhere, how about to do it: I did this but is not working. export PATH = $PATH:/scripts/pyhon But is not working Thank you  |
| | Hi guys I try to run this shell in java but it never works. Process p = Runtime.getRuntime().exec(" cat *.java|sed '/import/d'|sed'/package/d'>>b.java "); when I change the cmd to something like "ls" or "open foo.java" the code will works. Any idea why?  |
| | i have 2 files, one file created on Windows and another was made on Ubuntu, i want to use this command: comm -12 file1 file2 how do i do that? |
| | i got a string var=96.33% from 120 how do i get 96.33 from $var? |
| | trying to send email from nc nc smtp.gmail.com 587 HELO there 250 mx.google.com at your service STARTTLS 220 2.0.0 Ready to start TLS MAIL FROM:<junk@example.com> connection dies.. whats wrong with the protocol im using?? |
| | i want to find the total space used for the files owned by me from my current directory. i have du -sh `find ./ -user $USER -type f` which gives 8.0K ./.a 8.0K ./t 4.0K ./cat/A 4.0K ./a using -s has no effect. using du -sh by itself includes the … |
| | I am (student) just switched to linux working on NoC (noxim) simulator in ubuntu 12.04 c++ is supported assignment from university, I want to make a script that call my whole program multiple times (for loop= e.g 10) and want to take average value from the functions that were called … |
| | Hi, I have dates like 20130402 (y-m-d i.e 2ndApr13) Dates are 20130402, 20130404, 20130409, 20130412 if date is 20130402 out put is 20130408 , if date is 20130412 output is 201304015 dd="20130402" echo $dd This gives me current dates next monday , date -d "next monday" +%Y%m%d How to find … |
| | my input file contais this text DOPC 1024 PW 30903 CL- 1 arg01 1 My output file should be DOPC 1024 PW 100 CL- 10 arg01 1 I have used this following command for the single substitution and it works well. read no_water read length sed s/"PW 30903"/"PW $no_water"/ arg01.top … |
| | Hi, I am trying to write a small shell script that will take user input on SVN branch and validate that the requested branch exists in SVN. And then continue with other operations if the branch is valid. I tried the following but seems its not working right: VALID_BRANCHES="4.2.1 4.1.0 … |
 | $ awk -F ":" 'NR!=1 {print $1}' test1.txt what does this mean?? especially ":"?? |
| | i am a beginner. i need online tutorial for shell scripting. there are many on the web.. which one to choose??  |
 | Basically I got 2 calendar scripts from the same source. I saw a custom script before that merged these two but Everything I tried failed. Please help. Here are the 2 scripts. Script 1: $('#date3').DatePicker({ flat: true, date: ['2008-07-28','2008-07-31'], current: '2008-07-31', calendars: 3, mode: 'range', starts: 1 }); Script 2: … |
 | New research shows that hackers are becoming increasingly lazy in their search for online exploits, with 98% of Remote File Inclusion and 88% of SQL injection attacks now being fully automated. It comes as no surprise whatsoever to DaniWeb administrators and moderators that your average cybercriminal is looking for the … |
 | hello guys, unfortunly my website got hacked few hours ago, and after investigations I found the was a c99.php file on my server so i deleted it and stopped any upload proccess and change back my chmod to default I want to ask how to prevent php files from being … |
| | I am having trouble having redirection working with the ability to hit enter and remain in the same shell. My problem is if user types: ./a.out < foo.txt (where foo.txt contains a command like date) I want to execute that command and exit the shell.However,if the user compiles the code …  |
| | Hello I'm writing a script to get content of web pages on different machines and compare them using their md5 hash hear is my code #!/bin/bash # Cluster 1 CLUSTER1_SERVERS="srv01:7051 srv02:7052 srv03:7053 srv04:7054" CLUSTER1_APPLIS="test/version.html test2/version.html test3/version.jsp test4/version.html test5/version.jsp" # Cluster 2 CLUSTER2_SERVERS="srv01:7055 srv02:7056 srv03:7057 srv04:7058" CLUSTER2_APPLIS="test/version.html test2/version.html test3/version.jsp test4/version.html" # … |
| | Good Morning, I'm new to Powershell and i'm attempting to create a script which will copy a folder to a spesific directory on an FTP site. I did some Googling and all I seem to come up with are ways to copy the folder contents, but not the folder itself. … |
| | I have been working with web traces and i need to change a particular format of the web trace to another. for example from cs21 793468639 122791 173 icons-html/HomePageIcon.gif ALT=" 0 0.0 cs21 793468639 122791 173 icons-html/HomePageIcon.gif ALT=" 0 0.0 cs21 793468639 122791 173 icons-html/HomePageIcon.gif ALT=" 0 0.0 to cs21 … |
 | Hi, I'm trying to output the return result on terminal by using >; however, I realized that it will overwrite the previous results. I'm wondering if there's a way to append the result to the file instead of overwriting it. So far this is what I have: FILENAME=$1 while read …  |
 | I made a mini compiler to help compile C code easier on linux machines with bash #!/bin/bash function project_menu { header echo "Edit project: $1" dir echo "1) New file" echo "2) Edit file" echo "3) Compile file" echo "4) Run Project" echo "5) Compile & Run Project" echo "6) … |
| | I know the way to read line by line: FILENAME=$1 cat $1 | while read LINE do echo "$LINE" done but what if I have something like "Type \t Value" in each line that I need to separate them in LINE. An example will be something like Integer 2 String … |
| | In a Telnet program, the output of command doesnt fit the screen. How can i see that? |
| | Hi, I'm trying to run my script but is not working for some reason the functions is not working at all. Anyone willing to help me to find out the error. Thank you. #!/bin/bash DATE=$(date +"%m_%d_%Y"); turn_off_services() { echo -e "\n## Remove unnecessary services" ## Turn off unnecessary services ## … |
| | I have been trying to install Fedora on my laptop which came pre-installed with Windows 8.I need fedora coz i have a course on Unix shell programming dis semester.But i haven't succeeded coz the bios is kind of different from the earlier ones.can u guys suggest me some way i'd … |
| | My code is rather basic so excuse my lack of shell scripting experience. I keep getting errors for line 3. I have tried changing "$1" to `echo $1` `cat $1` and even turning the whole line into a variable which i read in another forum and then calling that variable … |
| | I have this script that I thougth only deleted stuff more than 90 days old but after I ran it, it deleted pretty much everything on my backup drive. Thankfuly I have another backup drive so I did not lose my backup but I need to fix this so it … |
| | I have to write two scripts, one in bash and one in dos. My dos one works perfectly but I'm having trouble with my bash one. The assignment is to make a script that takes a command line argument (from a test script) and return the change. So if the … |
| | Hello everyone, i am fairly new to shell scripting so please bear with me. The following script is supposed to read words from a file and depending on the word print different things. However it always prints the default value. It also refuses to work completely if the first line … |
| | Firstly, i'm really new to all this bash/unix/c stuff so i will probably get some words meanings wrong here, but anyway: Im trying to make a client pass simple shell commands to the server, which executes them. They communicate locally on the same machine through a socket. I can make … |
| | Today I have finally made up my mind to quit bat scripting and go for powershell... I need to do a quick script bascially trying to looping through a command output.. can anyone shed some light? i tried foreach ($col in 'app-command -argument') { echo $col } well, guess my … |
| | Hello guys, Does anyone know exactly how to make a comparison script for car insurance? Would be great if someone could make one for me (£), or could teach me! Cheers, Sam  |
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