you haven't supplied an example, but i suppose the output of grep can be multiple lines, yes? If so:
This will grep the file "/path/to/file" for lines containing the expression "Expr" and feed every line found this way into the variable "$source", which in turn is successively searched for in file /path/to/file2 and replaced by "target". Notice the quoting of the variable inside the sed-line, which is necessary to make sure the resulting command is a continuous string. The print command is only meant as an explanatory device and not necessary.
This site has been very helpful thus far.. I thank you all in advance for sharing the knowledge. Let me get to it.
I am trying to write a very small script to take away from the boredom of doing the same thing over and over.
Everynow and again I have to get the hex value of a file using a... (2 Replies)
Hi guys. Is it possible (I'm sure it is) to use the output of a simple 'ls' command as input of another command 'tail'.
It is not really the output of the 'ls'. I have to useeach line of the output.
This is the first command...
ls *myFile*021308*
Which it outputs many filenames. For each... (3 Replies)
Hi,
I am triying to make sure that there exists only one file with the pattern abc* in path /path/. This directory is having many huge files. If there is only one file then I have to take its complete name only to use furter in my script.
I am planning to do like this:
if ; then... (2 Replies)
Hi guys...
I am new to this scripting...so please forgive me if anything worng in my questions...
here is my question..
I have file structure
/home/oracle/<sid>/logs/bkup
now i want to write a script which should grep the sid name from a file..and it should replace the <SID> with... (1 Reply)
I would appreciate any help.
I need to run 'ps -ef | grep 'process', get the process id and kill that process.
I have got this far:
- Get pid using ps -ef | awk '/process/{ print $2}'
after this I'm kind of stuck..
- Use pipe to redirect the output to kill
pid=ps -ef | awk '/bmserver/{... (2 Replies)
Hi All,
How do I provide the output of a command to another command which is waiting for an input from the user ?
Ex : I need to login to a device via telnet. In the script, initially I use the "read" command to get the IP Address, Username and Password of the device from the user. Now,... (1 Reply)
Hi All,
Hoping you can help as im in desperate need... I'm very new to unix scripting so apoligies,
I have setup an expect script in order to log into a node on our network, This will provide an output as per the below
*********** information:
*************: n/a
TEST IP : n/a
... (18 Replies)
I have a file example.txt as follows :SomeTextGoesHere
$$TODAY_DT=20140818
$$TODAY_DT=20140818
$$TODAY_DT=20140818I need to automatically update the date (20140818) in the above file, by getting the new date as argument, using a shell script.
(It would even be better if I could pass... (5 Replies)
One more question:
I want to grep "COS_12_TM_4 pattern from a file look likes :
"COS_12_TM_4" " ];I am taking scan_out as the input from the user.
How to search "COS_12_TM_4" in the file which is corresponds to scan_out (12 Replies)
Hi Experts,
I am writing a python script to grep string from file and display output in csv file as in attached screenshot
https://drive.google.com/file/d/1gfUUdfmQma33tz65NskThYDhkZUGQO0H/view
Input file(result_EPFT_config_device)
Below is the python script i have prepared as of... (1 Reply)
Discussion started by: as7951
1 Replies
LEARN ABOUT DEBIAN
combine
COMBINE(1)COMBINE(1)NAME
combine - combine sets of lines from two files using boolean operations
SYNOPSIS
combine file1 and file2
combine file1 not file2
combine file1 or file2
combine file1 xor file2
_ file1 and file2 _
_ file1 not file2 _
_ file1 or file2 _
_ file1 xor file2 _
DESCRIPTION
combine combines the lines in two files. Depending on the boolean operation specified, the contents will be combined in different ways:
and Outputs lines that are in file1 if they are also present in file2.
not Outputs lines that are in file1 but not in file2.
or Outputs lines that are in file1 or file2.
xor Outputs lines that are in either file1 or file2, but not in both files.
"-" can be specified for either file to read stdin for that file.
The input files need not be sorted, and the lines are output in the order they occur in file1 (followed by the order they occur in file2
for the two "or" operations). Bear in mind that this means that the operations are not commutative; "a and b" will not necessarily be the
same as "b and a". To obtain commutative behavior sort and uniq the result.
Note that this program can be installed as "_" to allow for the syntactic sugar shown in the latter half of the synopsis (similar to the
test/[ command). It is not currently installed as "_" by default, but you can alias it to that if you like.
SEE ALSO join(1)AUTHOR
Copyright 2006 by Joey Hess <joey@kitenet.net>
Licensed under the GNU GPL.
moreutils 2012-04-09 COMBINE(1)