RVM- Ruby Version Manager

Exploring RVM

I am trying get a feel for it …following the documentation …probabaly upate later.I was basically doing everything by gem..lack of awareness..heck…

This was provided by my colleague Brian ..thanks mate…

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Version check for important software build tool

Here is a small script , which will scan the system for important development tools for their version check.Simple and mundane.


#!/bin/bash
export LC_ALL=C

# Simple script to list version numbers of critical development tools

bash --version | head -n1 | cut -d" " -f2-4
echo "/bin/sh -> `readlink -f /bin/sh`"
echo -n "Binutils: "; ld --version | head -n1 | cut -d" " -f3-
bison --version | head -n1
if [ -e /usr/bin/yacc ];
then echo "/usr/bin/yacc -> `readlink -f /usr/bin/yacc`";
else echo "yacc not found"; fi
bzip2 --version 2>&1 `readlink -f /usr/bin/awk`";
else echo "awk not found"; fi
gcc --version | head -n1
/lib/libc.so.6 | head -n1 | cut -d"," -f1
grep --version | head -n1
gzip --version | head -n1
cat /proc/version
m4 --version | head -n1
make --version | head -n1
patch --version | head -n1
echo Perl `perl -V:version`
sed --version | head -n1
tar --version | head -n1
echo "Texinfo: `makeinfo --version | head -n1`"
echo 'main(){}' > dummy.c && gcc -o dummy dummy.c
if [ -x dummy ]; then echo "Compilation OK";
else echo "Compilation failed"; fi
rm -f dummy.c dummy

Running this script on my laptop shown the below output( I am on Slackware 13.37):


bhaskar@Slackware_12:18:38_Thu Aug 23:/lvm/Adm_scripts> sudo ./version-check.sh
bash, version 4.1.10(2)-release
/bin/sh -> /bin/bash
Binutils: (Linux/GNU Binutils) 2.21.51.0.6.20110118
bison (GNU Bison) 2.4.3
/usr/bin/yacc -> /usr/bin/yacc
bzip2, Version 1.0.6, 6-Sept-2010.
Coreutils: 8.15
diff (GNU diffutils) 3.0
find (GNU findutils) 4.4.2
GNU Awk 3.1.8
/usr/bin/awk -> /bin/gawk-3.1.8
gcc (GCC) 4.5.2
GNU C Library stable release version 2.13
grep (GNU grep) 2.7
gzip 1.4
Linux version 2.6.37.6-smp (root@midas) (gcc version 4.5.2 (GCC) ) #2 SMP Sat Apr 9 23:39:07 CDT 2011
m4 (GNU M4) 1.4.16
GNU Make 3.82
patch 2.6.1
Perl version='5.12.3';
GNU sed version 4.2.1
tar (GNU tar) 1.26
Texinfo: makeinfo (GNU texinfo) 4.13
Compilation OK

You can customize it to include more.Hope this will help.

Cheers!
Bhaskar