1. Shell Programming and Scripting

Hi, I need to do an exact find and replace (I don't want to use regular expressions because the input comes from user). I want to find a line that matches the user's input text and replace it with an empty string. For example, let's say the user enters I love "Unix" and the contents of the... (2 Replies)

2. Shell Programming and Scripting

Hi all, I am looking to create words from a sentence which adhere to a custom search pattern from my website: Example: ! +! / += ~ where the terms ! = not, +! = AND NOT, += - and equals and ~ = can be like.... Now here is the issue...i want to split a sentence like the one above on... (1 Reply)

3. Shell Programming and Scripting

I am having trouble parsing rpm filenames in a shell script.. I found a snippet of perl code that will perform the task but I really don't have time to rewrite the entire script in perl. I cannot for the life of me convert this code into something sed-friendly: if ($rpm =~ /(*)-(*)-(*)\.(.*)/)... (1 Reply)

4. Shell Programming and Scripting

Hello, I am trying to grep my log files for ORA errors, except ORA-00001. I have tried: grep 'ORA*!(-00001)' *.log but it is not working. Any help will be much appreciated. Thank you. (5 Replies)

5. Shell Programming and Scripting

I am trying to grep the following line in a file using a bash shell: (..) admin1::14959:::::: (..) It works with the following expression (as expected) # cat file | grep ^*:: admin1::14959:::::: but it does not work with (not expected) # cat /etc/shadow | grep ^+:: I assume the... (2 Replies)

6. Shell Programming and Scripting

Hello all! This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician. Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix: ... (16 Replies)

7. UNIX for Dummies Questions & Answers

I have a file of protein sequences with headers (my source file). Based on a list of IDs (which are included in some of the headers), I'd like to print out only the specified sequences, with only the ID as header. In other words, I'd like to search source.txt for the terms in IDs.txt, and print... (3 Replies)

8. UNIX for Dummies Questions & Answers

Hi ! Before trying to write a code, is there any program or code that generates all the combinations of strings that simple awk regex can match. By "simple regex" I mean let's say without "+", "*", and with a limited number of characters (e.g. from "1" to "5"). e.g: input: 34?5 output:... (9 Replies)

9. Shell Programming and Scripting

I am not a big expert in regex and have just little understanding of that language. Could you help me to understand the regular Perl expression: ^(?!if\b|else\b|while\b|)(?:+?\s+){1,6}(+\s*)\(*\) *?(?:^*;?+){0,10}\{ ------ This is regex to select functions from a C/C++ source and defined in... (2 Replies)

10. Shell Programming and Scripting

I'm trying to get some exclusions into our sendmail regular expression for the K command. The following configuration & regex works: LOCAL_CONFIG # Kcheckaddress regex -a@MATCH +<@+?\.++?\.(us|info|to|br|bid|cn|ru) LOCAL_RULESETS SLocal_check_mail # check address against various regex... (0 Replies)