Search Results

Search found 5228 results on 210 pages for 'bash alias'.

Page 45/210 | < Previous Page | 41 42 43 44 45 46 47 48 49 50 51 52  | Next Page >

• BASH: How to count all the human readable files?

  - by user1687406

  I'm taking an intro course to UNIX and have a homework question that follows: How many files in the previous question are text files? A text file is any file containing human-readable content. (TRICK QUESTION. Run the file command on a file to see whether the file is a text file or a binary data file! If you simply count the number of files with the ".txt" extension you will get no points for this question.) The previous question simply asked how many regular files there were, which was easy to figure out by doing find . -type f | wc -l I'm just having trouble determining what "human readable content" is, since I'm assuming it means anything besides binary/assembly, but I thought that's what -type f displays. Maybe that's what the professor meant by saying "trick question"? This question has a follow up later that also asks "What text files contain the string "csc" in any mix of upper and lower case?". Obviously "text" is referring to more than just .txt files, but I need to figure out the first question to determine this!

  Read the article

• How to use the .* wildcard in bash but exclude the parent directory (..)?

  - by Allan

  There are often times that I want to execute a command on all files (including hidden files) in a directory. When I try using chmod g+w * .* it changes the permissions on all the files I want (in the directory) and all the files in the parent directory (that I want left alone). Is there a wildcard that does the right thing or do I need to start using find?

  Read the article

• How do you run multiple programs from a bash script?

  - by Betamoo

  I am trying to write a .sh file that runs many programs simultaneously I tried this prog1 prog2 But that runs prog1 then waits until prog1 ends and then starts prog2... So how can I run them in parallel? Thanks

  Read the article

• Parallel processing from a command queue on Linux (bash, python, ruby... whatever)

  - by mlambie

  I have a list/queue of 200 commands that I need to run in a shell on a Linux server. I only want to have a maximum of 10 processes running (from the queue) at once. Some processes will take a few seconds to complete, other processes will take much longer. When a process finishes I want the next command to be "popped" from the queue and executed. Does anyone have code to solve this problem? Further elaboration: There's 200 pieces of work that need to be done, in a queue of some sort. I want to have at most 10 pieces of work going on at once. When a thread finishes a piece of work it should ask the queue for the next piece of work. If there's no more work in the queue, the thread should die. When all the threads have died it means all the work has been done. The actual problem I'm trying to solve is using imapsync to synchronize 200 mailboxes from an old mail server to a new mail server. Some users have large mailboxes and take a long time tto sync, others have very small mailboxes and sync quickly.

  Read the article

• Bash: Continue script if only one instance is running.

  - by Andrew

  Hello, now this is embarrassing. I'm writing quick script and I can't figure out why this statement don't work. if [ $(pidof -x test.sh | wc -w) -eq 1 ]; then echo Passed; fi I also tried using back-ticks instead of $() but it still wouldn't work. Can you see what is wrong with it? pidof -x test.sh | wc -w returns 1 if I run it inside of script, so I don't see any reason why basically if [ 1 -eq 1 ] wouldn't pass. Thanks a lot!

  Read the article

• Can I use what I wrote on the shell (bash, cmd, irb, etc) in a script automaticaly?

  - by El_Hoy

  The general idea is pretty simple, I want to make a script for a certain task, I do it in the shell (any shell), and then I want to copy the commands I have used. If I copy all the stuff in the window, then I have a lot of stuff to delete and to correct. (and is not easy to copy from shell) Resume: I want to take all the things I wrote... Is there an easy way to do this easy task?

  Read the article

• How a script know his own name in bash?

  - by debugger

  I launch script.sh and inside it i want to know what is his name Is there a standard procedure to know the scripts name ? the idea is to be able to extract the name from teh full path + name contained in $0 Thanks

  Read the article

• What does the following line of a bash script do?

  - by Bialecki

  Usually work in Windows, but trying to setup RabbitMQ on my Mac. Can someone let me know what the line below does? [ "x" = "x$RABBITMQ_NODE_IP_ADDRESS" ] && [ "x" != "x$NODE_IP_ADDRESS" ] && RABBITMQ_NODE_IP_ADDRESS=${NODE_IP_ADDRESS} Specifically, I'm curious about the [ "x" = "x$RAB..."] syntax.

  Read the article

• What is the difference between operator "=" and "==" in Bash ?

  - by debugger

  Hello All, It seems that these two operators realize pretty much same. So do you have any idea for the exact difference between the two ? When i need to use "=" and when "==" ?? Thank you, Debugger

  Read the article

• How do I set bash environment variables from a script?

  - by James A. Rosen

  I have some proxy settings that I only occasionally want to turn on, so I don't want to put them in my ~/.bash_profile. I tried putting them directly in ~/bin/set_proxy_env.sh, adding ~/bin to my PATH, and chmod +xing the script but though the script runs, the variables don't stick in my shell. Does anyone know how to get them to stick around for the rest of the shell session?

  Read the article

• Bash Scripting: I want to open a set of .html files, and add line before html tag

  - by Bashn00b

  Hi guys, I have a set of .php files in a folder, I want to add text just before these lines: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" > What i want is to insert just before these lines in the html file. So just want to prepend that file before each docType declaration. However the DOCTYPE declaration is never on line 1, as there is loads of php lines before. I have this current script (where FE is the folder containing all the scripts i want to edit): for file in ${fe}*; do echo "$file" done Thanks,

  Read the article

• How to bundle bash completion with a program and have it work in the current shell?

  - by extempore

  I sweated over the question above. The answer I'm going to supply took me a while to piece together, but it still seems hopelessly primitive and hacky compared to what one could do were completion to be redesigned to be less staticky. I'm almost afraid to ask if there's some good reason that completion logic seems to be completely divorced from the program it's completing for.

  Read the article

• Round all numbers in file to equal length in Bash?

  - by liborw

  Hello, Is there easy way how to round floating numbers in a file to equal length? The file contains other text not only numbers. Thanks

  Read the article

• How many different ways are there to get variable value in bash?

  - by user198729

  I found these two: [root@~]# echo $i; 2 [root@~]# echo ${i}; 2

  Read the article

• How to test whether a specific user has the priviledge to modify a certain file using bash?

  - by user198729

  Is it possible to do this programmatically?

  Read the article

• How to test whether a specific user (not current user) can modify a file in bash?

  - by user198729

  Is it possible to do this programmatically?

  Read the article

• HISTCONTROL=ignoreboth not working Debian Lenny

  - by Mike

  Can anybody confirm if by setting the the following environmental variables under debian lenny will make previous history entries not to be saved. GNU bash, version 3.2.39(1)-release export HISTCONTROL=ignoreboth export HISTSIZE=500 I have added them to my /etc/bash.bashrc but I keep getting repeated commands. Thanks

  Read the article

• TAB completion not working in ubuntu hardy heron

  - by Tutul

  I have recently installed ubuntu hardy and found that shell command completion with TAB doesn't work, the package 'bash-completion' is installed in my system. I guess it is related to dash being the default shell? Is there a way to use tab completion in dash? If there isn't a way then how can i change my default shell to bash?

  Read the article

• socat and rich terminals (with Ctrl+C/Ctrl+Z/Ctrl+D propogation)

  - by Vi

  socat - exec:'bash -li',pty,stderr,ctty - bash: no job control in this shell What options should I use to get fully fledged shell as I get with ssh/sshd? I want be able to connect the shell to everything socat can handle (socks5, udp, openssl), but also to have a nice shell which correctly interprets all keys, various Ctrl+C/Ctrl+Z and jobs control. Update: Found "setsid" socat option. It fixes "no job control". Now trying to fix Ctrl+D.

  Read the article

• socat and "no job control in this shell"

  - by Vi

  socat - exec:'bash -li',pty,stderr,ctty - bash: no job control in this shell What options should I use to get fully fledged shell as I get with ssh/sshd? I want be able to connect the shell to everything socat can handle (socks5, udp, openssl), but also to have a nice shell which correctly interprets all keys, various Ctrl+C/Ctrl+Z and jobs control. /* Requested tags: socat job-control */

  Read the article

• List of common ways those could shut down server unexpectedly ?

  - by SpawnCxy

  After running a bash fork bomb which made my webserver down, I think I should be more careful even not under root.I thought it would be totally fine while I'm not under root.So I ignored the warning and ran the bash fork bomb which is :() { :|:& }; : .(Please don't run it if u don't understand this code cuz it will make you system down).And I think I need a list of common ways those could cause a sever shutting down unexpectly even not under root. Any suggestion would be appreciated. Regards `

  Read the article

• Is it worth while to learn Awk?

  - by user41755

  I am decent with bash scripting and I am catching on to regex, and a little sed usage. Is learning awk still worth while with all the alternatives out there. I am kind of averse to using perl, I see it as dying, for some reason I feel like bash is more of a survivor. Opinions?

  Read the article

• double-click to run .sh file

  - by Delirium tremens

  GUI: I changed the permissions of an sh file, so that I can read, write and execute it. I double-clicked it, selected run in Terminal, but it didn't run. I double-clicked it, selected run, but it didn't run. Command-Line: bash *filename* runs it sh *filename* runs it The file content is: #!/bin/bash # get dirsyncpro home DIRSYNCPRO_HOME="$(dirname $0)" # start programm and pass any parameters java -Xmx512M -jar "$DIRSYNCPRO_HOME/dirsyncpro.jar" $* Works in this person's computer: http://www.knowliz.com/2008/08/how-to-installrun-sh-file-in-linux.html What's going on?

  Read the article

• HISTCONTROL=ignoreboth not working debian lenny

  - by Mike

  Can anybody confirm if by setting the the following env variables under debian lenny will make previous history entries not to be saved. GNU bash, version 3.2.39(1)-release export HISTCONTROL=ignoreboth export HISTSIZE=500 I have added them to my /etc/bash.bashrc but I keep getting repeated commands. Thanks

  Read the article

• Why can't I read or write a file whose owner is root and permission is 707 in Terminal.app on Snow L

  - by lululau

  This is what happens - but why? liuxiang@MacBookPro: ~/casecode/sh $ ls -l sa -rwx---rwx 1 root admin 55 10 21 00:07 sa liuxiang@MacBookPro: ~/casecode/sh $ cat sa cat: sa: Permission denied liuxiang@MacBookPro: ~/casecode/sh $ date >> sa -bash: sa: Permission denied liuxiang@MacBookPro: ~/casecode/sh $ ./sa -bash: ./sa: Permission denied

  Read the article

< Previous Page | 41 42 43 44 45 46 47 48 49 50 51 52  | Next Page >