grep .
This will result with empty lines removed of a file.
Category: Work related
Fedora 13: when home directory is a subdir through nfs and/or link
When I upgraded my fedora boxes in a cluster to fedora 13, I found that I can nolonger login locally via graphical interface, and remote login dropped me to / since it could not change dir to user home. I then setenforce 0 All back to normal. However, audit2allow -m local -l -i /var/log/audit/audit.log did […]
Use rasdial to command line operate VPN
C:\>rasdial /? USAGE: rasdial entryname [username [password|*]] [/DOMAIN:domain] [/PHONE:phonenumber] [/CALLBACK:callbacknumber] [/PHONEBOOK:phonebookfile] [/PREFIXSUFFIX] rasdial [entryname] /DISCONNECT rasdial Command completed successfully.
Linux: add a swap file
To add a swap file: Determine the size of the new swap file and multiple by 1024 to determine the block size. For example, the block size of a 64 MB swap file is 65536. At a shell prompt as root, type the following command with count being equal to the desired block size: dd […]
Grub boot without GUI
When booting, click any key to drop into grub booting menu, click Tab to bring up option line. Append 1 or 3 after the kernel line. Then it will boot without GUI. This is useful in case the X configuration is messed up. Normal booting will result a locked display as well as locked mouse […]
selinux use nfs home dir
echo “1 1” > /selinux/use_nfs_home_dirs
Get rid of “\\n” in files
cat fn.txt | tr ‘\\\n’ ‘ ‘ > fn.1.txt sed -i ‘s/ //g’ fn.1.txt mv fn.1.txt fn.txt
Launch X11 xterm windows from anywhere UNIX
tell application “X11” activate end tell
Fedora: Starting abrt daemon: abrtd: Failed to start: timeout waiting for child
This is listed as Bug 524469 but never a real solution was drawn. https://bugzilla.redhat.com/show_bug.cgi?id=524469 However, this is an easy thing, that the user abrt was not created. This cab be figured by running $ abrtd -vvvv Cure: create the user abrt, as: abrt:x:399:398::/etc/abrt:/sbin/nologin Also you will need to make sure that certain lines exist in group, […]
Use md5 checksum to identify malware
1) download md5deep from here: http://md5deep.sourceforge.net/#download 2) run the DOS script: @echo off if exist c:\out.txt del c:\out.txt for /r c:\ %%a in (*) do (md5deep %%~sa >> c:\out.txt) This will take hours, if you have plenty files. Note: You can change the c:\out.txt to anything you will feel more comfortable, and use like (*.exe […]