Hello Experts,
I am newbie to perl, just curious to know how to do the following in perl.
suppose I ve a txt file like below. when it founds "*Main Start"
Then go to "*Main End,,,,,,,," patteren and just collect the number from the previous line of "*Main End,,,,,,," pattern . In my... (17 Replies)
I am trying to match a pattern exactly in a shell script. I have tried two methods
awk '/\<mpath${CURR_MP}\>/{print $1 $2}' multipath
perl -ne '/\bmpath${CURR_MP}\b/ and print' /var/tmp/multipath
Both these methods require that I use the escape character. I am guessing that is why... (8 Replies)
Hi all,
I have a question..
Here is my requirement..I have 500 files in a path say /a/b/c
I have some numbers in a file which are comma seperated...and I wanted to check if the numbers are present in the FileName in the path /a/b/c..if the number is there in the file that is fine..but if... (1 Reply)
Hello, can someone help me how to find a word and 2 lines after it and then send the output to another file.
For example, here is myfile1.txt. I want to search for "Error" and 2 lines below it and send it to myfile2.txt
I tried with grep -A but it's not supported on my system.
I tried with awk,... (4 Replies)
I'm trying to write a simple shell script that looks at a given text file and if the only word in the file is 'completed', it launches another shell script.
So far I have this almost working...
if grep 'completed' $datafile
then...
however, using this logic the secondary shell script... (3 Replies)
Hi,
I want to extract the next 7 characters after I encounter the first ( in the code
eg
abc123=(xvn1342)
xyz678123=(ret8901)
I want to extract xvn1342,ret8901.
Please advise how to achieve this with awk, if possible? (9 Replies)
I need to help to work this
Print everything between 2 patterns if grep is not found the search word
example
Detroit
orange
cat
bat
rat
apple
sed -n "/Detroit,/apple/p" d |grep chicago
output would be
Detroit
orange
cat
bat
rat (1 Reply)
I ask of you but yet another simplistic question that I hope can be answered. Its better explained showing my code. Here is my list(tmp_pkglist), which contains a list of all Debian (Jessie) packages:
snippet
'zssh (1.5c.debian.1-3.2+b1 , 1.5c.debian.1-3.2 )',
'zsync (0.6.2-1)',
'ztex-bmp... (2 Replies)
Well guys and gals I have discovered after all these years that Python does complex numbers without the 'complex()' function or 'cmath' import.
It is well known that Euler's Identity E**(i*pi)+1=0 so I decided to experiment
Last login: Fri Dec 13 18:27:30 on ttys000
AMIGA:amiga~> python3.8... (0 Replies)
Discussion started by: wisecracker
0 Replies
LEARN ABOUT DEBIAN
isympy
isympy(1)isympy(1)NAME
isympy - interactive shell for SymPy
SYNOPSIS
isympy [-c | --console]
isympy [ {-h | --help} | {-v | --version} ]
DESCRIPTION
isympy is a Python shell for SymPy. It is just a normal python shell (ipython shell if you have the ipython package installed) that exe-
cutes the following commands so that you don't have to:
>>> from __future__ import division
>>> from sympy import *
>>> x, y, z = symbols("xyz")
>>> k, m, n = symbols("kmn", integer=True)
So starting isympy is equivalent to starting python (or ipython) and executing the above commands by hand. It is intended for easy and
quick experimentation with SymPy. For more complicated programs, it is recommended to write a script and import things explicitly (using
the "from sympy import sin, log, Symbol, ..." idiom).
OPTIONS -c shell, --console=shell
Use the specified shell (python or ipython) as console backend instead of the default one (ipython if present or python otherwise).
Example: isympy -c python
FILES
${HOME}/.sympy-history
Saves the history of commands when using the python shell as backend.
BUGS
The upstreams BTS can be found at <http://code.google.com/p/sympy/issues/list> Please report all bugs that you find in there, this will
help improve the overall quality of SymPy.
SEE ALSO ipython(1), python(1)
2007-10-8 isympy(1)