Programmatically extract tar.gz in a single step (on Windows with 7-Zip)

Old question, but I was struggling with it today so here’s my 2c. The 7zip commandline tool “7z.exe” (I have v9.22 installed) can write to stdout and read from stdin so you can do without the intermediate tar file by using a pipe: 7z x “somename.tar.gz” -so | 7z x -aoa -si -ttar -o”somename” Where: … Read more

Creating a script for a Telnet session?

I’ve used various methods for scripting telnet sessions under Unix, but the simplest one is probably a sequence of echo and sleep commands, with their output piped into telnet. Piping the output into another command is also a possibility. Silly example (echo password; echo “show ip route”; sleep 1; echo “quit” ) | telnet myrouter … Read more

How do I get the day month and year from a Windows cmd.exe script?

To get the year, month, and day you can use the %date% environment variable and the :~ operator. %date% expands to something like Thu 08/12/2010 and :~ allows you to pick up specific characters out of a variable: set year=%date:~10,4% set month=%date:~4,2% set day=%date:~7,2% set filename=%year%_%month%_%day% Use %time% in similar fashion to get what you … Read more

How to compile a linux shell script to be a standalone executable *binary* (i.e. not just e.g. chmod 755)?

The solution that fully meets my needs would be SHC – a free tool, or CCsh a commercial tool. Both compile shell scripts to C, which then can be compiled using a C compiler. Links about SHC: https://github.com/neurobin/shc http://www.datsi.fi.upm.es/~frosal/ http://www.downloadplex.com/Linux/System-Utilities/Shell-Tools/Download-shc_70414.html Links about CCsh: http://www.comeaucomputing.com/faqs/ccshlit.html

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