10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hi there,
I'm working with file more than 400K lines, 60 columns. Column count is going to be multiple of 12: 60, 12, 72 or so.
NF/12 gives me on how many iterations I've to do to check certain value.
For example: 7, 14th if only 24 columns in file.
7th, 14th and 21st if 36 columns in... (6 Replies)
Discussion started by: genome
6 Replies
2. Shell Programming and Scripting
I have a simple script to log network connectivity to a set of systems.
However, as expected the date appended to the log never changes because the new variable is lost when the loop starts again. Can someone clue me in on how to get around this issue?
#!/bin/bash
LOG=/tmp/netlog... (3 Replies)
Discussion started by: woodson2
3 Replies
3. Shell Programming and Scripting
Hi Guys,
I have one text file ABC.txt...It have 3 lines
List=/home/klk/dir/ABC.txt
Leajnk123
KJUHIO1234
IJOKIJ7676
I want use as different variable of each line.Just like
X=firstline
Y=Secound Line
Z=Third Line (4 Replies)
Discussion started by: asavaliya
4 Replies
4. Shell Programming and Scripting
A not-too-ugly solution to this classic problem...
#!/bin/bash
mknod fifo p
(
echo 'value' > fifo &
)
VARIABLE=`cat fifo`
rm fifo
Whatdcha think? Good? No good? (9 Replies)
Discussion started by: vomv1988
9 Replies
5. UNIX for Dummies Questions & Answers
HI. I had an environment variable defined in my .bash_profile file and I deleted it. I opened a new terminal and looked inside .bash_profile and it's not there but when I type
printenv MYCONFIG
it reutrns what the value used to be in my .bash_profile still!! I did a grep for MYCONFIG and... (6 Replies)
Discussion started by: dissectcode
6 Replies
6. Shell Programming and Scripting
Hi,
I have a user defined variable _TIME1=xxx
I am using awk command for pattern matching.
cat $_LOCATION/catalina.txt | awk '/^`$_TIME1`:??:??/'
It not taking the value of $_TIME!
eg:I am using the command to get all the patter from 12:00:00 to 12:59:59
The user defined variable... (2 Replies)
Discussion started by: ahamed
2 Replies
7. Shell Programming and Scripting
Hi ,
I had a script in which there is a variable $LOG defined and I want to check where that variable is getting value from, is there a way I can check for that variable and it's value if it is defined in some other script function or script . I checked using command env and also export... (1 Reply)
Discussion started by: somu_june
1 Replies
8. Shell Programming and Scripting
In a line such as:
echo -n "How many days back would you like to check? "; read days
How can I ensure that the user has a.) entered a number between 1-30 (not 0 or 31+) and b.) has not just hit enter (ie set it to "") and if it's entered wrong, how do I start the if statement over?
I... (10 Replies)
Discussion started by: earnstaf
10 Replies
9. Shell Programming and Scripting
I have a file that has a list of entries in a column
x
z
z
z
x
y
z
The column can have any length and any number of any strings. I need to replace each unique string with a user defined number. I can filter the unique entries out using
awk '{if (NF==5) print $2}' file | uniq | nl >... (1 Reply)
Discussion started by: ce124
1 Replies
10. Linux
moved to correct thread (0 Replies)
Discussion started by: alien12
0 Replies