Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: One Line Command how to use pipe statements to execute and comment on multiple possible outcomes
Top Forums UNIX for Beginners Questions & Answers One Line Command how to use pipe statements to execute and comment on multiple possible outcomes Post 303040996 by Neo on Monday 11th of November 2019 10:56:14 PM
Old 11-11-2019
From my perspective, I don't understand why you do not do all the text processing and system call in python, since your command starts out with python.

python works just fine to process text, make system calls, etc.

For example, you can run the rpm -qa command in Python as follows:

Code:
import os
os.system('rpm -qa')

Or a more likely syntax, here is an example:

Code:
import subprocess 
time = subprocess.check_output('date')
print 'Now the time is', time

Since your script starts out with python, why not do the rest of the processing in python?
These 2 Users Gave Thanks to Neo For This Post:
greavette RavinderSingh13
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

exit status of command in a pipe line

Hi, I am trying to test the exit status of the cleartool lsvtree statement below, but it doesn't seem to be working due to the tail pipe, which it is testing instead. Is there a way around this without adding a tonne of new code? cleartool lsvtree $testlocation/$exe_name | tail -15 ... (10 Replies)
Discussion started by: topcat8
10 Replies

2. Shell Programming and Scripting

How to execute the multiple line sql using shell script

Hi All, Please help me to write a shell script to execute the below sql query. select c.account_no,b.bill_no,a.pay_type,(b.total_due + b.recvd + b.adjusted + b.disputed + b.transferred) as amt_not_billed,d.cash_on_delivery, (select j.bill_no from billinfo_T y, bill_t j where... (1 Reply)
Discussion started by: girish.raos
1 Replies

3. Shell Programming and Scripting

How do I execute multiple statements within If then else

Please help me. I have been doing this for several hours. Here is the code if then echo a b c d >> file.txt echo 1111 >> file.txt fi The reason I want the two echo is because I want these statements printed on multiple lines. I keep getting error . First it tells me... (2 Replies)
Discussion started by: asemota
2 Replies

4. Shell Programming and Scripting

How to execute a no of SELECT COUNT(*) statements using a loop

HI Unix Gurus, I have a number of SELECT count(*) statements in an input file and I want to execute it using a shell script but one by one using loop in script.... How can I do this..... (7 Replies)
Discussion started by: ustechie
7 Replies

5. Shell Programming and Scripting

execute multiple statements in if-else

how can we execute multiple statements in else condition i have if then statement else statements fi in else condition i have multiple statements but it executing only one statement is there any way to execute multiple statements (4 Replies)
Discussion started by: nani1984
4 Replies

6. Web Development

cannot execute copy comment but can do echo

I have set the sh file to chmod 755 i only able to print the output but cannot execute the copy why? Below is the code for sh file echo "Hello" cp hello.sh helloworld.sh Below is my code for php. <html> <head> </head> <body> <?php echo '<p>Hello</>'; ?> <?php shell_exec('sh... (4 Replies)
Discussion started by: zhengkoon8
4 Replies

7. UNIX for Dummies Questions & Answers

Execute multiple comands on one single line

hi, I have a litle problem i wish to excute this comand : ./test.sh -e txt /home -l a so what it says is that "-e" shows me all the extenions that are ".txt" in "home" this works but then i wish that "-l" will show all files begining in this case with the letter "a" . Both comands work... (5 Replies)
Discussion started by: samirboss
5 Replies

8. Shell Programming and Scripting

sed command to replace a line in a file using line number from the output of a pipe.

Sed command to replace a line in a file using line number from the output of a pipe. Is it possible to replace a whole line piped from someother command into a file at paritcular line... here is some basic execution flow.. the line number is 412 lineNo=412 Now i have a line... (1 Reply)
Discussion started by: vivek d r
1 Replies

9. Shell Programming and Scripting

Read line by line and execute command

Hi ALL, I have a requirement like this. 1.GET ALL TABLE NAME (just table name) keep in file 2.Read line by line and get the count of table from tablename files. tablename detail has a sql statement "db2 select tabname from syscat.tables" (1 Reply)
Discussion started by: netdbaind
1 Replies

10. Shell Programming and Scripting

Quick and easy way to comment out multi lined print statements

Is there a quick and easy way to comment out multi lined print statements? something like this? printf("3408 strings_line_tokens %s \n", strings_line_tokens); (6 Replies)
Discussion started by: cokedude
6 Replies

LEARN ABOUT DEBIAN

pycentral

PYCENTRAL()															       PYCENTRAL()

NAME

       pycentral - register and build utility for Python packages

SYNOPSIS

       pycentral [-h] [-v] <cmd> [<cmd options>] [<args>]

DESCRIPTION

       pycentral
	provides support for installing python modules independent
	of the current installed Python version and handling
	byte-compilation and -removal tasks in installation scripts.

OPTIONS

       -v, --version
	      Limit the output to the version numbers of the python versions.

       -h, --help
	      Print a help text.

       pycentral has the following sub commands. For fine grained help, call: pycentral <cmd>.

       bccompile
	      Byte compile .py files in a package.

       bcremove
	      Remove the byte compiled .py files.

       list   List all managed files.

       pkginstall
	      Make a package available for all supported runtimes.

       pkgprepare
	      Prepare a package for all supported runtimes.

       pkgremove
	      Remove a package installed for all supported runtimes.

       pkglist
	      List pycentral-managed files of a package for all supported runtimes.

       rtinstall
	      Make installed packages available for this runtime.

       rtremove
	      Remove packages installed for this runtime.

       updatedefault
	      Update the default python version.

       debhelper
	      move files to pycentral locaation, variable substitutions (called by dh_pycentral).

       pycentraldir <package>
	      Show the installation directory used by pycentral for <package>.

       showdefault
	      Show default python version number. Deprecated, use pyversions(1)

       showsupported
	      Show the supported python versions. Deprecated, use pyversions(1)

       showversions
	      Show version numbers of supported python versions.  Deprecated, use pyversions(1) dh_pycentral, should not be called directly).

       version
	      Show the pycentral version.

FILES

       /etc/python/debian_config   is	searched   for	 the   attribute   overwrite-local.    If   set   to   1,   or	True,  existing  files	in
       /usr/lib/pythonX.Y/*-packages are overwritten with symbolic links to the pycentral install area. The default is to abort  the  installation
       of  a  package,	when files already exist. This behaviour may be useful, when python libraries were manually installed into this directory.
       The attribute byte-compile can be set to a comma separated list of the values standard and optimze to indicate how files  should  be  byte-
       compiled.

SEE ALSO

       pyversions(1), Python policy.

AUTHOR

       Matthias Klose

																       PYCENTRAL()
All times are GMT -4. The time now is 05:39 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy