Enable Mouse Scrolling with Screen (tested in Putty)
Screen the app that can split screens like so, is not too intuitive when it comes to scrolling thru your bash shell. Notice where the cursor is in the diagram below, itsRead More…
Show and Print Tabs in Linux and Freebsd
To print tab characters (and other control characters) you cant just press Tab because tab is a special auto complete char in bash. Control-V then Tab or Control-V then Control-I (also knownRead More…
FreeBSD missing tee and tee append – make tee bash functions
The version of FreeBSD 8.0 that I am using is missing tee & tee -a (tee append) You know tee as in write on screen & file: date | tee thedate.txt Which will runRead More…
Sed replace new line with any text
Source: http://stackoverflow.com/questions/1251999/how-can-i-replace-a-newline-n-using-sed Replace with space: Use this solution with GNU sed: someoutput | sed ':a;N;$!ba;s/\n/ /g' Here is cross-platform compatible syntax which works with BSD sed (FreeBSD 8 confirmed): someoutput | sed -eRead More…
Nohup Alternative
Learned it from here http://stackoverflow.com/questions/6168781/how-to-include-nohup-inside-a-bash-script They use it to make current script daemoned but you can also make scripts that you run from within a script daemoned Instead of doing nohup prog & or nohupRead More…
Samba Disabling Trusted Domains (all or specific ones)
You can either disable all trusted domains or certain/specific trusted domains. Winbind will only allow users to use SMB if they can authenticate into the samba server with a user that isRead More…
How to sync date with ntp server
If your date command outputs wrong time or date use this command to sync with a known good timeserver: ntpdate -u pool.ntp.org
Missing “uniq” here is an “awk” substitute – FreeBSD
Since we dont have uniq Here is it, and it doesnt even need a sort Basically it goes line by line and only prints it if it hasnt been seen cat text.txtRead More…
Don’t Use “for” loops for File Iteration – Use “while read” Loops
Imagine a list of files (either in a text file, or a command that outputs a list of files). First make sure these files are newline seperated. Why newline? because filenames dontRead More…
Creating any string or variable in Bash – single quotes, double quotes, no quotes
Recommend to read this first: http://wiki.bash-hackers.org/syntax/quoting With bash you will see 3 types of quoting & in general typing anything in bash you will be in one of these scenarios (your eitherRead More…