Also, is there a way to verify where one or more files bearing a variation on a filename exist within the directory? For example, all files under filename.*? I have been using
but I've been told that this statement is intended more for verifying the existance of a single file, not a range of files.
... this line will hold true if any file in the directory starts with "filename." so you will actually see what you're looking for if at least one of them exists in the directory ... verify this with ...
Hi,
I'm back!
Ok, I'm trying to use a variable with a value of a unix command.
So when I try a=`ls`, then echo $a I get the correct answer.
But when I try it with a pipe:
a=`ls | wc -c`, then echo $a I get:
filename: a: command not found
I've tried so many ways I presumme it's the pipe... (1 Reply)
I have this idea.
I have a variable for the start of someones log in time,
(start=`who am i | cut -c30-34`)
and a variable for the log out time or present time,
(end=`date | cut -c12-16`)
but how do I go about subtracting them to get the total log in time.
I've tried adding a another variable... (2 Replies)
A good place to start is simple variable passing....
Passing variables from one script to another
The next level is passing a variable into a more complex command such as using a variable in a sed command. There are some simple quoting techniques that are very general. These are mentioned... (0 Replies)
Hi there, I need to be able to put the hostid of my box into a file (replacing the text "enter_hostid_here" so i tried
sed -e 's/enter_hostid_here/`hostid`/g' inputfile > outputfile
but it takes the `hostid` literally as text .....how can I get this info into the file (ideally in a single... (2 Replies)
Can I use my own variables within awk and sed for example:
I've written a while loop with a counter $i and I want to use the value of $i within sed and awk to edit certain lines of text within a data file.
I want to use :
sed '1s/$/texthere/g' data.csv
Like this:
sed '$is/$/$age/g' data.csv... (5 Replies)
This is going to be part of a longer script with more features, but I have boiled it down to the one thing that is presently stumping me. The goal is a script which checks for updates to web pages that can be run as a cron job. The script reads (from a tab-delim file) a URL, an MD5 digest, and an... (1 Reply)
Hi there
I found the Command to send commands to other servers like:
sv01> ssh user@sv02 'ps -ef'
But I cant use Variables from a script i want to execute on another server like:
sv01> ssh user@sv02 'cd $SCRIPTHOME'
although the variable is set on sv01.
How can I run commands on sv02 with... (2 Replies)
Hello I am hoping you may help.
I am not sure how to go about this exactly, I know the tools but not sure how to make them work together.
I have two SED commands that I would like to run in a shell script. I would like to take
the manual input of a user (types in when prompted) to be used... (4 Replies)
Hi All,
Seeking for your assistance on how to put in variables all the commands in /bin
config files: /home/test/config_file/config.cfg
cat /home/test/config_file/config.cfg
ECHO=/bin/echo
LS=/bin/lsMain script
cat test.sh
source=/home/test/config_file/config.cfg
ECHO=$ECHO
LS=$LS#i... (3 Replies)