I wrote a simple script which mails out svn activity logs nightly to our developers. Until now, I've run it on the same machine as the svn repository, so I didn't have to worry about authentication, I could just use svn's file:/// address style. Now I'm running the script on a home computer, accessing a remote repository, so I had to c...
Suppose I have a directory containing the files foo bar.txt foo baz.txt (each with a space between 'o' and 'b'). Suppose I would like to do this: for f in *.txt; do mv ${f} `basename ${f} .txt`; done This fails because bash expands *.txt to foo bar.txt foo baz.txt instead of foo\ bar.txt foo\ baz.txt i.e. properly escaped ...
Hello everyone, here's my situation: I had a big text file that I wanted to pull certain information from. I used sed to pull all the relevant information based on regexp's, but each "piece" of information I pulled is on a separate line, I'd like for each "record" to be on its own line so it can be easily imported into a DB. Here's a sam...
I have two requirements for my Java app. If it dies, restart it. If the server reboots, restart it - simple enough. Using the answer here I have a script that will restart when the java application dies. #!/bin/bash until java -Xms256m -Xmx768m -jar MyApp.jar; do echo "MyApp crashed with exit code $?. Respawning... " >" and it...
Source code dirs have meaningful file names. for example AAAbbbCCddEE.h/.cxx : where AAA, bb CC could refer to abbrev of sub-systems or just a functionality-description like "...Print..." or "...Check..." as the code-base grows we land up with more than handful files per dir. it becomes daunting just to know what is doing what especial...
Hello All, I'm trying to do something common enough: Parse user input in a shell script. If the user provided a valid integer, the script does one thing, and if not valid, it does something else. Trouble is, I haven't found an easy (and reasonably elegant) way of doing this - I don't want to have to pick it apart char by char. I know t...
I want to write a script to log in and interact with a web page, and a bit at a loss as to where to start. I can probably figure out the html parsing, but how do I handle the login part? I was planning on using bash, since that is what I know best, but am open to any other suggestions. I'm just looking for some reference materials or ...
I have a text in an email on a windows box that looks something like this: 100 some random text 101 some more random text 102 lots of random text, all different 103 lots of random text, all the same I want to extract the numbers, i.e. the first word on each line. I've got a terminal running bash open on my Linux box... If these were ...
Hello how can i use the if/else statement to look for files. Lets say if i have a file.txt in root, i want to be able to write a scrip that says if [ file.txt ] does not exist then use the find / -newer sshh > file.txt and or else use [file.txt] and then mail the changes if anything has changed. ...
Hello, I have a mediaplayer that can only read samba shared files. I would like to play http stream (from my dreambox for instance). My idea is to share a folder on my linux. In this share, I will put a (fake?) file for each tv channel I want to be able to watch (ex : channel1.ts, channel2.ts ...). The mediaplayer can only read these ...
How do I match the URL address in this string, I have other code that matches text and it seems to work, but when I try to use it here, it doesn't, it keeps saying there is "No such file or directory. I didn't know grep -o only worked on files? matchString='url={"urlPath":"http://www.google.com/","thisIsOtherText"' array=($(grep -o 'url...
I'v run both commands and they both seem to do the same thing, is this true or is there something happening I'm not seeing? These two appear to do the same thing: result=$(ls -l) result=`ls -l` ...
Hi, Lets say I have the following scripts a.sh echo in a if test 1 -ne 2; then echo oops exit 1 fi b.sh echo in b ./a.sh echo in b 2 When running b.sh, I want it to exit if a.sh exited. How do I do this? (The current output is in b in a oops in b 2 And that's not what I want) Thanks, Rivka ...
Hi, I am looking in the content of several files for strings like: (2E)-3-({5,6-dihydroxy-3-methyl-2-oxo-4-[(1E)-prop-1-en-1-yl]-2,3-dihydro-1-benzofuran with grep, so I try to do: grep -n "(2E)-3-({5,6-dihydroxy-3-methyl-2-oxo-4-[(1E)-prop-1-en-1-yl]-2,3-dihydro-1-benzofuran" *.data but I get errors, probably due to the fact that ...
Is there a command-line tool that will take a symbolic errno such as EINVAL and print the corresponding string, Invalid argument? I would like to avoid having to find that EINVAL is value 22 on my system and then using$ perror 22. Ideally I could write something like $ errorcommand EINVAL Invalid argument $ ...
I have a list of file locations in a text file. For example: /var/lib/mlocate /var/lib/dpkg/info/mlocate.conffiles /var/lib/dpkg/info/mlocate.list /var/lib/dpkg/info/mlocate.md5sums /var/lib/dpkg/info/mlocate.postinst /var/lib/dpkg/info/mlocate.postrm /var/lib/dpkg/info/mlocate.prerm What I want to do is use sed or awk to read f...
What is a generalized way to create a bash script from another script. For instance: $./script1 arg1 arg2 > script2 $./script2 $arg1 arg2 I can think of a few ways like simply echoing the output but I was wondering if there was a better way or a command I didn't know about and a google search wasn't very helpful. Thanks in advance f...
So I want to match just the domain from ether: http://www.google.com/test/ http://google.com/test/ http://google.net/test/ Output should be for all 3: google I got this code working for just .com echo "http://www.google.com/test/" | sed -n "s/.*www\.\(.*\)\.com.*$/\1/p" Output: 'google' Then I thought it would be as simple as doin...
I am new to bash and Linux. I have a program I have written that I want to create multiple simultaneous instances of. Right now, I do this by opening up 10 new terminals, and then running the program 10 times (the command I run is php /home/calculatedata.php What is the simplest way to do this using a bash script? Also, I need to know ...
I have the feeling that I'm missing the obvious, but have not succeeded with man [curl|wget] or google ("http" makes such a bad search term). I'm looking for a quick&dirty fix to one of our webservers that frequently fails, returning status code 500 with an error message. Once this happens, it needs to be restarted. As the root cause se...