Fernando de Oliveira wrote:
> I like this. Output from
>
> $ cat /etc/lfs-release
> SVN-20120311
Here is another version. I can't say I really like it. The original is
40 lines and this is 73. All this because users either don't have
enough experience to understand what's there now or because a user
(generally experienced) just skips it.
After all, the book says:
/bin/sh should be a symbolic or hard link to bash
/usr/bin/yacc should be a link to bison or small script that executes bison
/usr/bin/awk should be a link to gawk
We then print out all the current values on the system.
How much hand holding do we need to do?
-- Bruce
#!/bin/bash
# Simple script to list version numbers of critical development tools
function die
{
rm -f dummy.c dummy
echo "Error: $1"
exit 1
}
function executable
{
EXE=$(which $1 2>/dev/null)
[ -x "$EXE" ] || die "$1 not found"
}
export LC_ALL=C
bash --version | head -n1 | cut -d" " -f2-4
SH=`readlink -f /bin/sh`
echo "/bin/sh -> $SH"
[ "$SH" == "/bin/bash" ] || die "/bin/sh is not a symlink to bash"
executable ld
echo -n "Binutils: "; ld --version | head -n1 | cut -d" " -f3-
executable bison; bison --version | head -n1
if [ -e /usr/bin/yacc ];
then echo "/usr/bin/yacc -> `readlink -f /usr/bin/yacc`";
else die "yacc not found"; fi
executable bzip2
bzip2 --version 2>&1 < /dev/null | head -n1 | cut -d" " -f1,6-
executable chown
echo -n "Coreutils: "; chown --version | head -n1 | cut -d")" -f2
executable diff; diff --version | head -n1
executable find; find --version | head -n1
executable gawk; gawk --version | head -n1
AWK=`readlink -f /usr/bin/awk`
awk=/usr/bin/awk
echo "$awk -> $AWK"
[ "$AWK" == "/usr/bin/gawk" ] || die "$awk is not a symlink to gawk"
executable gcc; gcc --version | head -n1
echo 'main(){}' > dummy.c && gcc -o dummy dummy.c
if [ -x dummy ]
then
echo "gcc compilation OK"
rm -f dummy.c dummy
else
die "gcc compilation failed"
fi
executable ldd; ldd --version | head -n1 | cut -d" " -f2- # glibc
executable grep; grep --version | head -n1
executable gzip; gzip --version | head -n1
cat /proc/version;
executable m4; m4 --version | head -n1
executable make; make --version | head -n1
executable patch; patch --version | head -n1
executable perl; echo Perl `perl -V:version`
executable sed; sed --version | head -n1
executable tar; tar --version | head -n1
executable makeinfo; echo "Texinfo: `makeinfo --version | head -n1`"
executable xz; xz --version | head -n1
echo -e "\n\n*** Review all versions for currency!"
--
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