1. UNIX for Dummies Questions & Answers

Hi, I have a set of files containing strings like I.TEST1_TEST2 or B.ESSA_ESSB for example. Does somebody know how to substitute these strings whith the same name and an extension "_V1" (ie. I.TEST1_TEST2_V1) using sed command or else ? (3 Replies)

2. Shell Programming and Scripting

Hi , I am stuck up in the below scenario:- I need to read a file name (eg A.txt) name frm another file (eg B.txt) and then I need to search for a particular expression in A.txt and substitute it with another expression. How can I use SED inside SHELL Scripting and command prompt as well to... (1 Reply)

3. Shell Programming and Scripting

Hi guys, Can u please help me to replace (-) with (/) in a file containing no of records using "sed " command in unix. thanks in advance. subhendu (5 Replies)

4. Shell Programming and Scripting

I have file.txt 1 4 7 9 3 I want to replace the tabs with a space, but my code doesn't work. cat file.txt | sed 's/"\t"/ /g' > t.txt But file is still the same. Numbers seperated by tabs instead of spaces. Help? (2 Replies)

5. UNIX for Dummies Questions & Answers

I'm a noob to unix, and I have a line of data like the following: title=Boston|tcolor=green|desc=Large city in New England|url=www.boston.com Is there a way to change a field value with sed substitution? (i.e. change tcolor=green to tcolor=blue) I figured out: sed... (19 Replies)

6. 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)

7. Shell Programming and Scripting

Hello, I have two files. File1 is normal txt file and File2 contains list of line numbers. e.g. File2: 3 6 9 ..... I need to replace a character in File1 in lines (taken from File2). For that I am using a "for" loop: for i in $(cat File2) do sed "$i s/Y/N/" File1 done but my... (3 Replies)

8. UNIX for Dummies Questions & Answers

How can you use sed with a line of code that reads: 67899:Bill:Williams:Maple Dr.:45908600 Let us say we want to replace Maple Dr. with Oak St. (1 Reply)

9. Shell Programming and Scripting

Hi everyone, I need very simple sed command to change a parameter in a text file. I have a line in this text which is like set xx 0.5 A program reads this file and does some algebraic calculations. So to make a parameter scan I need to change the value of xx. I thought I can do... (7 Replies)

10. UNIX for Dummies Questions & Answers

I'm trying to use Larry Wall's rename (prename) tool to rename multiple files: $ ls -1 blar.m4mp3 BLAH.mpmp3 bar foo.m4mp3 foo bar.mpmp3 I'm trying to fix the extensions so they're all .mp3: rename 's/m?mp3/mp3/' *mp3 I expect m?mp3 to match the extensions,... (3 Replies)