9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi
i am reading a tutorial on sed
below command was given in tutorial. i am not able to understand the working of below command also this command is now working in my enviroment.
$ sed -n '1~2p' alarm
sed: 1: "1~2p": invalid command code ~
$
need your assitance here (7 Replies)
Discussion started by: scriptor
7 Replies
2. Shell Programming and Scripting
Hi everyone!
I'm writting a function in .bashrc to extract some text from a file. The file looks like this:
" random text
Begin CG step 1
random text
Begin CG step 2
...
Begin CG step 100
random text"
For a given number, let's say 70, I want all the text between "Begin CG... (4 Replies)
Discussion started by: radudownload
4 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I have a file like this-
aa
12
23
34
aa
21
34
56
aa
78
45
56
I want to print out only the lines after the last aa. How do I do this? I tried using grep -A and sed -n, but both didnt work as I wanted to.
Could someone help me out please.. (3 Replies)
Discussion started by: jamie_123
3 Replies
4. Shell Programming and Scripting
Hi,
Could anyone clearly explain me the below sed construct in detail to get to know what it actually does?
sed 's/\(* *\)//4'
echo 'test;10;20' | sed 's/*;\(*\)/\1/' (1 Reply)
Discussion started by: royalibrahim
1 Replies
5. Shell Programming and Scripting
Hi All,
I need to extract 543 from the command below :
# pvscan
PV /dev/sdb1 VG vg0 lvm2
Total: 1 543.88 GB] / in use: 1 / in no VG: 0
I have the following command which does the job, but I think this could be achieved in a more simple way using sed or awk. Any help is... (7 Replies)
Discussion started by: nua7
7 Replies
6. Shell Programming and Scripting
Hi there,
My samba configuration file looks like that :
...
...
path = /home/samba/profiles/
...
path = /home/samba/shares/family
valid users = family
path = /home/samba/shares/admins
valid users = admins
path = /home/samba/shares/publicI want to extract the list of standard... (3 Replies)
Discussion started by: chebarbudo
3 Replies
7. Shell Programming and Scripting
Hi! I'm trying to find a way to extract a certain amount of lines from a log file. This would allow me to "follow" a web user through our log files.
Here is a sample fake log file to explain what i want to accomplish :
BEGIN REQUEST sessionID=123456
boatload of lines for thread-1 detailing... (8 Replies)
Discussion started by: gnagus
8 Replies
8. Shell Programming and Scripting
Forgive me if this is a dumb question...I'm a Windows sys admin with little programming knowledge.
I have files containing anywhere from 3 to 200 lines. Using SED, I want to extract only lines containing a specific instance of "ISS." It is possible that "ISS" will occur several times in a... (10 Replies)
Discussion started by: thuston22
10 Replies
9. Shell Programming and Scripting
I am cating a file with passwords into another file. I want to replace the the password with **** and it is not working. Here is my command
cat testing | sed 's/`echo ${pass}`/*****/'>>out1
${pass} is the password that I want to replace before it goes into out1
Anyone know what I am... (1 Reply)
Discussion started by: lesstjm
1 Replies