10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi All
I have a file which has five columns in each rows.
cat file.txt
a|b|c|d|e
1|2|3|4|5
a1|a2|a3|a4|a5
.
.
.
I need to make sure that there are no less than five or more than five columns (in all the rows) by mistake. I tried this :
cat file.txt | awk 'BEGIN{FS="|"};{print... (3 Replies)
Discussion started by: chatwithsaurav
3 Replies
2. Shell Programming and Scripting
Hi guys,
I am running a while loop in a script ro read a file line by line.
Now I want to run a grep only on the lines below the line I am that is being read by the while loop.
Eg:
If my while loop is on line 4 of the file, the grep only runs below line 4 and does not include line 1,2... (3 Replies)
Discussion started by: Junaid Subhani
3 Replies
3. Shell Programming and Scripting
I need a script which should watch a directory for a file with specific directory.
If it finds a file in directory, it should search for few specific keyword in the file. if the keyword exists, it should trim string from specific column.
The file should be moved to another directory and the a... (8 Replies)
Discussion started by: akashdeepak
8 Replies
4. Shell Programming and Scripting
dear all,
i need your advice
i have sample script like this:
testing.sh
for i in {1..10}
do
echo testing $i
done
but i forgot create "#!/bin/bash" in above "for"
so i want output will like this
testing.sh
#!/bin/bash
for i in {1..10}
do
echo testing $i
done (2 Replies)
Discussion started by: zvtral
2 Replies
5. Shell Programming and Scripting
Hello
My problem is that I want to change some specific numbers in a file. It is like,
2009 10 3 2349 21.3 L 40.719 27.388 10.8 FRO 7 0.8 1.1LFRO 2.6CFRO 1.1LMAM1
GAP=157 1.69 5.7 5.9 5.8 0.5405E+01 0.4455E+00 0.1653E+02E
STAT SP IPHASW D HRMM SECON CODA AMPLIT... (11 Replies)
Discussion started by: miriammiriam
11 Replies
6. UNIX for Advanced & Expert Users
Is there a way to allow a user to use sudo cp on a specific directory and only a specific file? (6 Replies)
Discussion started by: cokedude
6 Replies
7. UNIX for Dummies Questions & Answers
My project is to get a temperature reading from a refridgerator every 2 minutes and check to see if the door has been left open.
I don't yet have the mastery of Linux, being a complete noob, but I reckon I need a text file with the latest temperature reading in it. This I've managed to do by... (2 Replies)
Discussion started by: Fitch
2 Replies
8. UNIX for Dummies Questions & Answers
Hi,
i'm trying to find a way to replace some numbers in a file, but with no luck sofar.
Let's say i have file with three columns,
i would like to find specific line, and replace third column with different number.
search_string="oa11 /home/testfile1.log"
new_number=600
test file... (4 Replies)
Discussion started by: dusoo
4 Replies
9. Linux
Hello! All,
Could you please tell me how to get a specific line number from a text file?
For example below,
ABC
DEF ---> Get this line number, return to an variable
GHI
My OS is Linux.
Thank you so much for your help in advance! (3 Replies)
Discussion started by: barryxian
3 Replies
10. Shell Programming and Scripting
Hello!
Here is what I am trying to do: I am taking a class at school that is using a lot of literature that is in the public domain, and available for free on the web. Rather than read them online in HTML, I have been pulling them down and quickly and dirtily tagging them up and typesetting... (4 Replies)
Discussion started by: ccox85
4 Replies
