1. Shell Programming and Scripting

Hi, I have to update last line of a text file with the number of lines in that file. This last line will have text such as 0.0000 and I should replace this with number lines. If lines are 20 then it should be replaced with 00020. Any sed or awk cmd help would be appreciated (3 Replies)

2. Shell Programming and Scripting

I have a shell script and want to assign a value to a variable. The value is the line exctrated from a file using the line number. The line number it is not fix, and could change any time. I have tried sed, awk, head .. See my script # Get randome line number from the file #selectedline = `awk... (1 Reply)

3. Shell Programming and Scripting

Hello, I am having trouble extracting a specific line from a file when the line number is known. My first attempt involved grep -n 'hi' (the word 'hi will always be there) to get the line number before the line that I actually want (line 4). Extra Notes: -I am working in a bash script. -The... (7 Replies)

4. Shell Programming and Scripting

Hi I want to extract certain text between two line numbers like 23234234324 and 54446655567567 How do I do this with a simple sed or awk command? Thank you. ---------- Post updated at 06:16 PM ---------- Previous update was at 05:55 PM ---------- found it: sed -n '#1,#2p'... (1 Reply)

5. Shell Programming and Scripting

I Have file1 with below lines : #HostNameSelection=0 :NotUsed #HostNameSelection=1 :Automatic #HostNameSelection=3 :NotForced I have file2 which has similar lines but with different values I want to copy the changes from file1 to file2 ,line by line only if line begins with '#'. for... (7 Replies)

6. Shell Programming and Scripting

Hi, I search all forum, but I can not find solutions of my problem :( I have multiple files (5000 files), inside there is this data : FILE 1: 1195.921 -898.995 0.750312E-02-0.497526E-02 0.195382E-05 0.609417E-05 -2021.287 1305.479-0.819754E-02 0.107572E-01 0.313018E-05 0.885066E-05 ... (15 Replies)

7. Shell Programming and Scripting

Hi guys, does anyone know how to extract(grep) a line from the file, if I know the line number? Thanks a lot. (9 Replies)

8. Shell Programming and Scripting

I have 1 file that has elements as follows. Also the CVR(10) and the word "SAUCE" only appear once in the file so maybe a grep command would work? file1 CVR( 9) = 0.385E+05, ! VEHICLE CVR(10) = 0.246E+05, ! SAUCE CVR(11) = 0.162E+03, ! VEHICLE I need to extract the... (6 Replies)

9. Shell Programming and Scripting

Sed command to replace a line in a file using line number from the output of a pipe. Is it possible to replace a whole line piped from someother command into a file at paritcular line... here is some basic execution flow.. the line number is 412 lineNo=412 Now i have a line... (1 Reply)

10. Shell Programming and Scripting

Ok .. This is driving me nuts. I suppose I need another set of eyes. Example Data interface Vlan1 description xxxxxxxxxxxx ip address 192.168.1.1 255.255.255.252 no ip redirects no ip proxy-arp ip flow ingress ip pim sparse-mode load-interval 30 ! interface Vlan2 ... (5 Replies)