Escape a string for a sed replace pattern How to Escape a String for a sed Replace Pattern Understanding the Problem When using sed stream editor for string replacement in Unix like systems you often ne 2 min read 09-10-2024 6
Non greedy (reluctant) regex matching in sed? Understanding Non Greedy Reluctant Regex Matching in sed When working with text processing tools like sed you may encounter situations where you want to match p 3 min read 09-10-2024 7
Replace \n with \r\n in Unix file How to Replace n with r n in Unix Files In the world of text file manipulation dealing with newline characters can be a common yet challenging task especially f 3 min read 09-10-2024 5
delete html comment tags using regexp Deleting HTML Comment Tags Using Regular Expressions HTML comments are used to add notes and explanations to your code without affecting the page s rendering Ho 2 min read 08-10-2024 5
Case-insensitive search and replace with sed Case Insensitive Search and Replace with sed Understanding the Problem When working with text files in Unix like environments there are often times when you nee 2 min read 08-10-2024 5
In-place edits with sed on OS X Mastering In Place Edits with sed on OS X When it comes to text manipulation in Unix like systems sed short for stream editor is a powerful command line utility 2 min read 08-10-2024 3
Capitalize strings in sed or awk How to Capitalize Strings Using sed and awk In the world of Unix based systems text processing is a daily task that programmers and system administrators often 2 min read 08-10-2024 4
sed insert a line before the last string in a certain pattern Inserting a Line Before the Last String in a Specific Pattern Using sed Problem You have a file with a specific pattern and you need to insert a line before the 2 min read 07-10-2024 6
Escaping a variable with special characters within sed - comment and uncomment an arbitrary line of source code Escaping Special Characters in sed Commenting and Uncommenting Code Lines The Challenge You re working with a source code file and need to dynamically comment o 2 min read 07-10-2024 10
How do I format email name and address when there is a comma inside string? Decoding the Comma Chaos Formatting Email Addresses with Internal Commas Sending emails is a daily routine for many of us but what happens when a name or addres 2 min read 06-10-2024 10
Find common lines to multiple files Finding Common Lines Across Multiple Files A Practical Guide Have you ever found yourself needing to identify lines of text that appear in multiple files This i 2 min read 06-10-2024 9
Regex for whitespace delimiter except for [ and ] characters Mastering Whitespace Delimiters Excluding Brackets with Regex Regular expressions regex are powerful tools for pattern matching in text One common task is to sp less than a minute read 05-10-2024 8
Mac automator - TouchID for sudo issues with system disk access Unlocking System Disk Access with Touch ID A Guide to Mac Automator and Sudo The Problem You ve built a handy Mac Automator workflow that requires administrator 2 min read 05-10-2024 8
How to merge every three lines into one line from the command line? How to Merge Every Three Lines into One Line from the Command Line If you are looking for a way to merge every three lines of a text file into a single line usi 2 min read 30-09-2024 8
grep or sed to delete 1 line after a match (but not the match)? Using grep or sed to Delete a Line After a Match Without Deleting the Match When working with text files you may encounter situations where you need to manipula 2 min read 30-09-2024 5
Why doesn't sed work with my netcat input? Understanding Why sed Doesnt Work with netcat Input If you ve been trying to manipulate data streamed through netcat using sed and found it frustratingly ineffe 2 min read 29-09-2024 10
Iterating and saving files with new headers and names in bash Iterating and Saving Files with New Headers and Names in Bash When working with multiple files in Bash you may often find yourself needing to iterate through ea 2 min read 25-09-2024 16
How to avoid adding word before matched line when word already exists How to Avoid Adding Words Before Matched Lines When They Already Exist In programming a common task involves checking if certain text exists in a file or a stri 2 min read 24-09-2024 19
sed loop not working on Mac OS as it would work on Linux Troubleshooting Why sed Loop Doesnt Work on Mac OS Like It Does on Linux Introduction The sed command short for Stream Editor is a powerful text processing tool 2 min read 24-09-2024 14
delete all lines matching between two patterns in unix Deleting Lines Matching Between Two Patterns in Unix In the world of Unix and shell scripting text processing is a common requirement One frequently encountered 2 min read 24-09-2024 16
Replacing a string with a variable which contains newlines Replacing a String with a Variable that Contains Newlines In programming one common task developers face is the need to replace a substring within a string with 2 min read 24-09-2024 22
bash while loop highlight words through text from array variable for mcat grammar Mastering Bash Highlighting Words in Text Using a While Loop When working with text processing in Bash the while loop is a powerful tool that can help you manip 2 min read 23-09-2024 19
How to match a group exactly zero times How to Match a Group Exactly Zero Times in Regular Expressions When working with regular expressions it can sometimes be tricky to handle specific cases such as 2 min read 22-09-2024 15
How to remove junks till '|' from every line in redhat linux? How to Remove Junk Until from Every Line in Red Hat Linux If you re working with text files in Red Hat Linux you might encounter scenarios where you need to cle 2 min read 21-09-2024 13
linux extraction for log output not grouping correctly Troubleshooting Linux Log Extraction Ensuring Correct Grouping When working with logs in Linux it is common to encounter problems with data extraction particula 2 min read 20-09-2024 18