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I have IPs of all machines are in one text file,how to do scp from one machine to all machines and automate task?
cat ips.txt | xargs -rtn1 sh -c 'scp /source-file "${1}:/target-file"' --
You probably need to adjust the command to your actual needs, which you didn't state.
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Need help on below requirement.
I have a file with list of URLs and need to mask query param values as shown in below example in Linux.
http://hostname:port/uri?data=value&data1=value2&data3=value3
to
http://hostname:port/uri?data=XXX&data1=XXX&data3=XXX
thanks
you could replace any character that is not a &, it is more efficient than enumerating all possible ranges:
$ echo 'http://hostname:port/uri?data=value&data1=va%20lue2&data3=value3' | \
sed -r 's/=[^&]+/=XXX/g'
http://hostname:port/uri?data=XXX&data1=XXX&data3=XXX
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I have to make script similar to Screen Shooter. Unfortunately I am green in this topic. In connection with this I would like to ask if it is possible to write such a script? I know ScreenShots are possible, but can they be handled?
Regards
Example, screenshot script :
#!/bin/sh
import screen$RANDOM.jpg;
exit 0;
The script will display a cross-hair for selecting "screenshot size".
import is an imagemagick command : sudo apt install imagemagick
http://packages.ubuntu.com/xenial-updates/imagemagick
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How to travel in the shell using cat command? (arrow keys are not working)
cat > myfile
I think you are asking for a pager. For that you can use more or less (yes, these are the real names). As an example, you can use cat FILE | less or just less FILE. In there, you can scroll/search/... (exit with q).
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I have this text:
111.11.1.111(*)222.22.2.221(mgn)333.33.3.333(srv)
111.11.1.111(*)333.33.3.333(srv)222.22.2.222(mgn)
222.22.2.223(mgn)111.11.1.111(*)333.33.3.333(srv)
I only want to know the IP's before (mgn), output:
222.22.2.221
222.22.2.222
222.22.2.223
thanks
Through grep,
$ grep -oP '(?:\d{1,3}\.){3}\d{1,3}(?=\(mgn\))' file
222.22.2.221
222.22.2.222
222.22.2.223
Through sed,
$ sed 's/.*\b\(\([0-9]\{1,3\}\.\)\{3\}[0-9]\{1,3\}\)(mgn).*/\1/g' file
222.22.2.221
222.22.2.222
222.22.2.223
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How to build perl script in a bianry form ? and it is executable on i686 GNU/Linux
without any additional package or library
perlbin
pp
Also see:
How does PAR::Packer work?
The easy way to build stand-alone Perl apps