Re: combining the result of processing various commands and setting it in a variable

From: onetitfemme (onetitfemme2005_at_yahoo.com)
Date: 11/19/05 

Date: 19 Nov 2005 05:08:56 -0800

 All right.

 of the 4 examples I got from you only the first one proposed by Lars,
didn't work.

// __ grep: version: No such file or directory
_VER="Linux version";
_CHKVER="`dmesg | grep -i ${_VER}`";
echo ${_CHKVER};

// __ OK!
_VER="Linux version";
_CHKVER=$(dmesg | grep -i "${_VER}");
echo ${_CHKVER};

// __ OK!
_VER="Linux version";
_CHCKVER=`dmesg | grep -i "$_VER"`;
echo ${_CHKVER};

// __ OK!
_VER="Linux version";
_CHCKVER=$(dmesg | grep -iF -- "$_VER");
echo ${_CHKVER};

 Obviously I need to read more about "grep" and command shell scripting

 Now, which of the working versions of the script is the most portable
one?

 The last one as given by Stéphane?

 I need for the script to hopefully work on any Unix and Linux
versions. Right now I am testing it with Linux/Debian/Knoppix

 Thanks
 otf

Relevant Pages

  • Re: [Full-disclosure] reduction of brute force login attempts via SSHthrough iptables --
    ... Anyhow its no problem at all to modify, so if you dont like it, just dont use it. ... on a lame script like this as long as it WORKS and is not insecure. ... echo "~ sorting out ip by ip" ... # echo "not enough failed logins, probably no attack from: ...
    (Full-Disclosure)
  • Ripping Tapes with Linux--How To
    ... the full script is located in the BASH ... My tape player is a portable style journalist's recorder from the ... The most irritating part of the recording process was setting the ... echo Starting de-noise procedure to file $TMP1 ...
    (comp.os.linux.misc)
  • Re: Linux Backup with Modification Date Filter?
    ... I wrote a bash script that acts as a wrapper to rsnapshot which first ... generates a modification-date filter, ...
    (comp.os.linux.misc)
  • Re: Command Script variable value lost during execution
    ... The value of RC_ver is numeric but ECHO would return it numeric or not... ... I checked ERRORLEVEL at the end of the script and it was 0 but again ... ECHO RoboCopy version xxx%RC_Ver%yyy ... CALL:GetRCVer RoboCopy.exe /Path ...
    (microsoft.public.windows.server.scripting)
  • Re: Bit Twister: Is this the dhclient-exit-hooks you were talking about?
    ... If you are running the dhclient then all you have to do is ... create the hooks script with YOUR CODE. ... DNS server with my wgets and then restart my firewall. ... You can put an echo statement on commands to show you what will happen ...
    (alt.os.linux)