Fedora :: Create A Shell Script File With Two Functions - Bash Scripting & /etc/bashrc
Oct 6, 2010
how come I can create a shell script file with two functions, I can execute the file, but when running declare -f, the functions are not on memory, and when invoking the function bash returns invalid. In the other hand, I can copy & paste the two functions at the end of my /etc/bashrc file.... then I can called the function by name.... and the commands within that function run on my session. here is a print of all my bash packets:
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Does Fedora has restrictions on shell scripting? I haven't touch bash in seven years, so if things have change on it I'm behind on it, and sorry for my ignorance.
I was giving the found the following shell script. I was told it was suppose to ensure only that only one script of Test.sh can run..
However, I get it looks like it has a error when i run it... As i get Test.sh: line 9: kill: (20831) - No such process
what is going on in this script can someone explain it to me... I thought it suppose to work like a singleton for my script creating a file .run-test-sdolan. However, i don't see how or where .run-test-sdolan is create?
sdolan@staging:$ vi Test.sh #!/bin/sh MYDIR=`dirname $0` CONFDIR=$HOME/ code....
I am trying to create a shell script similar to ls, but which only lists directories. I have the first half working (no argument version), but trying to make it accept an argument, I am failing. My logic is sound I think, but I'm missing something on the syntax.
Code: if [ $# -eq 0 ] ; then d=`pwd` for i in * ; do if test -d $d/$i ; then echo "$i:" code....
I am working on a simple script that should take two command line arguments, a [number] and a [name]. The first thing the script should do is check to make sure that no more and no less than two command line arguments have been entered when calling the script - an error message should be delivered if the condition is not true.
If two args have been entered, then the message 'processing "scriptname"' should appear, where scriptname is the name of the script being called. The script should then write to the screen "Hi [name]!", and should write this phrase [number] of times. For example, the command $ myscript 2 joe would produce the output: I have read the manual many times looking for examples, and I am very close by virtue of my own efforts. Further, I have searched these forums and others for good examples, which have also gotten me very close. Still my script is not completing the objective, and I am wondering if someone could point me in the right direction. Script:
I do not know how to write either PYTHON or Bash Shell Scripting. I am to learn one for Linux Administration purpose. Which one will you recommend for a Linux Admin/Eng environment?
vi /etc/samba/smb.conf [samba test] comment = client path = /opt/apps/deploy/websites public = no writable = yes
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Using the bash shell script the above given samba configuration,the script should automatically add these above given entries in the /etc/samba/smb.conf.can any one help me how to edit the file add entries in the config file using shell script.
I wonder if there is anyway to make a user-defined bash shell function global, meaning the function can be use in any bash shell scripts, interactively or not. This is what I attempted:
How do I create a user account in a shell script? I know this may sound n00bish to you, but I know it's more than just mkdir-ing the home directory and subdirectories.
I am using Linux on my system. I don't have gui for my system, only console is there.
I have some task to create a menu box window using dialog in shell scripting.
I have to take input from user & save it in a file.
But this should like html form as e.g.
Name - ..................... email id - .................. phone - ...................... location - ...................
Submit Cancel
Such window should be displayed on console using dialog & then user will enter his information there as Name,email id, phone,etc & submit it, then it gets saved to a file. Here submit & cancle are buttons. I have to do it in bash shell scripting. Or give me some examples like the above with shell script code.
I'd like to know some good resources, links, e-books to learn basic Linux system administration scripting. I know how to write very basic BASH shell scripts so I'm still at beginner level. There are so many docs out there that I'd like to narrow down people's opinion's on the best easy to understand resources that are available. Eventually I'd like to learn basic PERL as well.
I'm writing a bash script that executes a few perl scripts. One of the perl scripts that I need to execute requires two arguments with it. The arguments are stored in a txt file, each line contains a hostname and its corresponding IP address separated by a ":" (colon), the txt file looks like this below:
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I'm not sure if it's the best way to accomplish this but here it goes. In the bash file, let's call it getHosts.sh, I create an array and assign each line of the file to an element in that array. I then think I need to create a new array where I take the hostname (which is before the ":") separate it from its IP address and place the IP address on a new line just below the hostname (this way I can reference to it like $hostNames[$x] would be the hostname, and $hostNames[$x+1] would be its IP address). So the new array would now look like this below:
shell scripting in Fedora14I want a script"Find in curent folder for files, and it copy first file he find with name gived by user, if name already exist then echo error message and finish"command usage " bash scriptname copyASname"
smthing like Code: #!/bin/bash for files in /home/user/* do
I am working on some homework, however i am not here to be spoon fed. I am trying to get the numerical modification date of each file in a folder. Ie lets say there is a file called bob and it was modified 2006-11-23. i want to get it into a variable as 20061123.
Now i currently have this code:
Code:
However for some reason my output is:
Quote:
See how the 2011 has been placed next to it? i ran it with -x and saw this:
Code:
However i do not know how to find a way around this?
I'm just starting out with shell-scripting, but having a problem with making new text files with the touch or cat > commands.
What I've been doing is touch testfile1.txt
Also, I've tried cat > testfile1.txt (text)
Console reports "bash: text1.txt: No such file or directory. Consfusingly, it works fine in the home-directory. But if I move the file to where I want it, I can no longer view, edit, etc. it.
What options should I use when I'm using the sort command to sort the top 5 CPU processes (ps -eo user,pid,ppid,%cpu,%mem,fname | sort ??? | head -5) showing max to min usage?
I have a file called list.txt with on word on each line that changes in length. I'd like to make a menu, each line being its own choice. I pieced together most of it the only thing missing is a failsafe for typing a number out of range
I'm writing a script and I have doubts on how to assign values to an already established variable. The value for the vatriable would be coming from a file with three columns. I'm using the awk command for this. Am I doing it correctly? which of the following two ways is the better one or if both are wrong which one should I use?
MACHINE: HP Proliant DL260G5OS: SLES 11 SP1kernel: Linux xserver 2.6.32.12-0.7-default #1 SMP 2010-05-20 11:14:20 +0200 x86_64 x86_64 x86_64 GNU/LinuxIt is used as remote xserver in a LAN.I have configured /usr/lib/restricted/bin/.rbashrc with some environment variables but when the users logon in the system finally is executed $HOME/.bashrc and some environment vars are overwritten.
Just using shell scripting, how can I insert text into the middle of a file name. The file has a predictable pattern, let's say 3 letters and 3 numbers and I want to insert text in the middle of those 2 patterns. Say ABC123 is the file name. As a result, the file name should be ABC.blah.123
At my wit's end I can't find anything that I understand well enough to use. This is for a Unix class, we are working with shell scripting. File1 has 5 in it and File2 has 100 in it.The teacher wants us to read the values then do the math. This is what I have so far:#!/bin/bashvar1='cat File1'var2='cat File2'var3=`echo "scale=4; $var1 / $var2" | bc`echo The final result is: $var3
Is there a way to process individual characters one-by-one from a text file in Bash, or is that hoping for a little too much from this lovable old clunker?
I would like to create some aliases for bash shell. On other Unix/Linux machines I have done this using the alias command like this: alias rm rm -i
When I type that into a terminal on Ubuntu, it looks like alias is not installed. I get this:
bash: alias: rm: not found bash: alias: rm: not found bash: alias: -i: not found
I tried adding the alias to .bashrc instead, but then I get the same error message every time I start terminal. Just for fun I tried apt-get install alias, just to see what would happen, and it installed something called libperl-alias instead, and alias still doesn't work.
in bash scripting...say I want to take the input from a user via a question...I would do this:
Quote:
#!/bin/bash
echo "How large do you want this partition to be in GB (enter only the number)?" read PART_SIZE echo "You want your partition to be $PART_SIZE GB" But I don't want to echo it back to the screen, I want to add it to the content of /etc/fstab. I have been mucking around with sed to find the tmpfs partition in /etc/fstab and add the partition size attribute (this is to use the onboard RAM as a volatile partition)...but am not having any luck...
The portion of /etc/fstab that uses /dev/shm for the tmpfs partition is:
tmpfs /dev/shm tmpfs defaults 0 0
So, if a user says "24" GB to the answer (from above), how do I get it to automatically add that value to the tmpfs partition line in /etc/fstab? So it would look like:
tmpfs /dev/shm tmpfs size=24g,defaults 0 0
I understand that I would also have to come up with a way to put "size=XXg", which I could do with a copied over generic file before this action...then the script would have to find "XX" and replace it with the user's figure...
I'm writing a script to execute bash commands in the PHP CLI. I would like to suppress errors from bash and write my own error message if an error occurs. So far I have this (assuming log.txt doesn't exist!):
Code:
tac log.txt 2>/dev/null
Which works as expected, tac kicks up an error but the error is suppressed, but when I use this:
Code:
tac < log.txt 2>/dev/null
I get:
Code:
bash: log.txt: No such file or directory
The tac error is suppressed but bash still gives me a dirty error.
