1. UNIX for Dummies Questions & Answers

dear guys, I want to replace the beginning of some lines in a file by (,) The sequence number of lines is located in a file named numbers so, i used this simple script to do so, but it didn't work. it does'nt recognize the $j in the command sed #! /bin/sh for j in `cat numbers` do sed '$j... (6 Replies)

2. Shell Programming and Scripting

Okay, title is kind of confusion, but basically, I have a lot of scripts on a server that I need to replace a ps command, however, the new ps command I'm trying to replace the current one with pipes to sed at one point. So now I am attempting to create another script that replaces that line. ... (1 Reply)

3. Shell Programming and Scripting

Hi there, I have 1 file with different 144 lines and 144 files that I want to change with a sed. What I want to do is to go trough the file with the 144 different lines take the line a replace a certain pattern with said in the first file of the folder where the 144 files are. Take the second... (3 Replies)

4. UNIX for Dummies Questions & Answers

Hi, im having problem creating a loop using my code: aside from the fact that the 1st variable (VAR) does not increment, it loops more than the expected output. for sample purposes, test csv contains 3 lines. #get number of lines in the file lines=$( wc -l < test.csv ) ... (5 Replies)

5. Shell Programming and Scripting

I have a file with just over 1 million lines. I am trying to write a script that will find 1400 instances of two particular patterns and insert a url on the 22nd line after the second pattern is matched. Each line in the text file corresponds to a particular check box or dropdown in the software... (3 Replies)

6. Shell Programming and Scripting

I have a file MAT.txt which contains the following data: mat1.txt mat2.txt . . . . mat100.txt I want to remove the '.txt' from every line and have an output file with the following data: mat1 mat2 . . . . mat100 I know this can be done with sed easily for each line, but I do... (8 Replies)

7. UNIX for Dummies Questions & Answers

:wall: I have a requirement to search a log file that never rotates for certain values. If I find them I pipe them to a another file. To log file is constanyl being appened with new lines and never rotating Easy so far. The problem is I dont want to pipe out matches already seen before. ... (3 Replies)

8. UNIX for Dummies Questions & Answers

Hello I have a group of files a1.profile a2.profile a3.profile a4.profile b1.profile b2.profile b3.profile b4.profile These files all have the same first line with a value s1 atop the columns s1_context s1_ref s1_sample s1_% etc I am trying to use sed in a for loop to replace the s1 in the... (2 Replies)

9. UNIX for Dummies Questions & Answers

Hi, I have a file called 1.txt, I want to create 2.txt through 100.txt using a for loop. In each instance of the loop, I want to change all "1"'s in the text file to "2"s and so on... I tried the code below to do this: for i in {2..100}; do sed 's/1/$i/g' 1.txt > $i.txt; done but it... (1 Reply)

10. Shell Programming and Scripting

Hi, I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :- ./sample.sh: line... (12 Replies)