Converting a comma delimited file to newline delimited. Using sed to perform...
The search and replace dialog in Gedit. I have used this to convert a comma delimited file to a newline delimited file. I had saved a huge long list of IP addresses that I had to put into the banlist...
View ArticleHow to use the sed command to filter text files in Linux and other useful...
Using sed to filter a text file and change a specific character for another. In this case the ” character becomes the ‘ character using the magic of the sed command. Since I am using a character the...
View ArticleHow to filter text with the sed command. This is useful for various shell...
This is a standard listing of files with wildcards in the bash shell. homer@deep-thought ~/Documents $ ls *.wad basenew.wad cc4-tex.wad city-heat.wad dark.wad doom.wad plutonia.wad scythe2.wad...
View ArticleHow to strip all of the text out of a text file and leave only the numbers...
This is how to remove all text from the output of a file and only keep the other formatting. homer@deep-thought ~/Desktop/b $ fortune -l | sed s/[a-z]/\ /gi; : 3:15 . . - . , ! -- '84 A possibly...
View ArticleHow to search and replace text in a file with sed. Not using cat.
The sed command is very useful for searching and replacing text in a file. This is how to search for and replace a text string in a file. Homer@bejiitas ~ $ sed -i 's/<main>/<mein>/gi;'...
View ArticleBasic text filtering with sed. Very useful when you are manipulating text files.
This example uses sed to replace the beginning word of a sentence. Administrator@WIN-EM8GK0ROU41 ~ $ echo "this is a line of text." | sed "s/this/This/gi;" This is a line of text. This is a better way...
View ArticleUseful shell tips. How to search and replace characters or words with the...
Search and replace on the bash shell is very useful for various one-liner shell commands. The below example shows how to replace a # character with a * character....
View ArticleSome awesome tricks with awk, grep and sed.
Reading a large text file and then finding all words that contain between 5 and 7 vowels. Notice I am not using cat. jason@Yog-Sothoth:~/Documents$ egrep '^([^aieou]*[aieou]){5,7}[^aieou]*$' Read More →
View ArticleVery cool Linux text processing tricks.
Align all text right on an 80 column width. jason@jason-Lenovo-H50-55:~/Documents$ ls -hula | sed -e :a -e 's/^.\{1,80\}$/ &/;ta' total 872K drwxr-xr-x 2 jason jason 4.0K May 4 08:48 . drwxr-xr-x...
View ArticleAnother way to get the actual IP address of your machine.
This is yet another way to get the actual IP address of your Linux machine on a LAN. This returns just the IP address of your Linux computer. jason@jason-Lenovo-H50-55:~$ ip a | awk '/inet / { print $2...
View ArticleUse sed to filter text, this is very useful.
This sed sample will filter out all HTML opening and closing tags in HTML sed -e 's/]*>//g' blog.txt This is an example of the usage of this one-liner. 4.4 Sun Nov 11 jason@Yog-Sothoth 0: $ sed -e...
View ArticleSearch and replace text in a file with ed.
I have a text file containing this string. deusexmachina:Documents jason$ cat out Darwin deusexmachina.local 18.2.0 Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018;...
View ArticleFun with sed on Linux.
The sed command can be used to reverse text. This is a very interesting feature. Provide a text string, and it will be reversed. jason@jason-Virtual-Machine:~$ sed...
View ArticleTrim multiple spaces with sed into a normal string.
To trim multiple spaces from a sentence and turn it back into properly readable text, use this sed syntax. sed 's/ \+/ /g' This is an example. echo "Hello, this sentence has multiple spaces in it and...
View ArticleConvert text from comma delimited to newline delimited with a simple command.
Some text files are shipped as comma-delimited files. This can be annoying to fix, but it can be done with the Linux command line. Here is an example of comma-delimited text....
View ArticleEasily change files on your Linux system with a simple command.
This command will change the default port for the SSH server on your Linux machine. jason@jason-desktop:~$ perl -pi -e 's/^#?Port 22$/Port 443/' /etc/ssh/sshd_config Then run this command to restart...
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