There is a common command for outputting a field or list of fields from each line in a file. Why wouldn't you just use cut?

required packages: curl, xml2, html2text command is truncated, see 'sample output' Show Sample Output

The above is an example of grabbing only the first column. You can define the start and end points specifically by chacater position using the following command: while read l; do echo ${l:10:40}; done < three-column-list.txt > column-c10-c40.txt Of course, it doesn't have to be a column, or extraction, it can be replacement while read l; do echo ${l/foo/bar}; done < list-with-foo.txt > list-with-bar.txt Read more about parameter expansion here: http://wiki.bash-hackers.org/syntax/pe Think of this as an alternative to awk or sed for file operations

You need to apt-get install python-sqlparse. This command simply formats a sql query and prints it out. It is very useful when you want to move a sql query from commandline to a shell script. Everything is done locally, so you don't need to worry about copying sql query to external websites. Show Sample Output

Lists all the modules that were installed the "proper way". It also uses Perl 5.10(or higher)'s say command for less typing. Show Sample Output

convert a unix timestamp to a human readable format. Show Sample Output

This will create a new file with proper code formatting and all comments removed.

This exports all lines of input file as environment variables, assuming each line is like these: OH=YEAH FU=UUUU

us lsof, grep for any pid matching a given name such as "node". Show Sample Output

minimal oneliner to keep track of time Show Sample Output

change user password one liner