Questions tagged [seq]
Use for questions related to "seq", a command-line tool to print sequences of numbers.
42 questions
15
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2
answers
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Why does "seq 1000000 | tee /dev/stdout" produce more single-digit numbers than expected?
I'm in Linux and in Bash. I expect
seq 1000000 | tee /dev/stdout
to always output 9 numbers from 1 to 9 and their duplicates (18 in total). But when I do
seq 1000000 | tee /dev/stdout | grep -c '^[1-...
1
vote
1
answer
129
views
sed with seq command problem
With this bash script
seq=$(seq 3)
sed -i "i ${seq}" input.txt
I get:
sed: -e expression #1, char 6: unknown command: `
'
But the following script works.
sed -i "i 1 2 3" input....
- 113
1
vote
1
answer
346
views
Why when using seq -s delimiter is after the last element?
I was trying different examples from Unix shell tutorial with seq command and got a different result in my terminal.
command:
seq -s '/' 1 5
result:
1/2/3/4/5/
instead of
1/2/3/4/5
The command ...
- 11
-3
votes
1
answer
685
views
2 decimal increment in seq makes everything with 2 decimal
I want to use this command in bash:
datarange=$(seq 0.5 0.25 5.5)
with output
echo $datarange = 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.25 4.50 4.75 5.00 5.25 5....
- 1
2
votes
1
answer
143
views
Using "seq", If one column is equal to 5, continue the other column
For example, I want to start from the far right column, and once that reaches 5, continue the count from the second farthest column.
0.0.0.0
0.0.0.1
0.0.0.2
0.0.0.3
0.0.0.4
0.0.0.5
0.0.1.5
0.0.2.5
0.0....
- 57
1
vote
2
answers
4k
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how to use seq with xargs to curl request [closed]
I'm working on curl commmand
that performs an action based upon parms value
curl 'http://www.example.com/actionid?id=123'
id value i want to pump dynamically so
seq 1 10 | xargs -I + curl 'http://...
- 29
1
vote
1
answer
1k
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How do I iterate through multiple bash arrays and elements that are not previously stored as variables?
Problem I'm trying to Solve
The problem I am trying to solve is being able to iterate through elements in two bash arrays as well as individual elements such that these elements are not stored ...
- 113
2
votes
2
answers
501
views
multiple sequences in a single variable
I have two type ranges which I need to get it in a single variable. How can I do that?
eg: I have one range like bs0401 to bs0405 (bs0401,bs0402,bs0403...) and another range like bn0201 to bn0205(...
- 37
1
vote
6
answers
1k
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Faster way to enumerate number than GNU seq? [closed]
I want to enumerate numbers (between 1 to 10136 range) but so far, most tools and trick I tried would struggle after 109 numbers or so...
Here some examples (with smaller range):
For seq 99999
real ...
- 2,502
1
vote
3
answers
53
views
Monitor how far the SEQuence has got
I have the following script which has been running for over 3 days:
seq -w 1 1000000 | while read i; do (./myscript.pl $i >> output.txt); done
Is it possible to find out how far it has got with ...
- 2,661
0
votes
1
answer
127
views
Write all numbers between 0 and large number (both inclusive) to a file in random order
For simulation I am trying to do, I want a text file with numbers ranging from 0 to 2^33 which is a huge number. I have used this command:
seq 0 Number >> OUTPUT FILE
But this is very slow. The ...
- 101
3
votes
1
answer
276
views
Search directories containing numbers larger than a certain threshold in their name
This is the command that I have and would like to modify with an additional condition:
find /home/user/backups/ -mindepth 2 -maxdepth 3 -name "*~EEEE000.tif" -print
This is the output of ls /home/...
- 267
-1
votes
2
answers
122
views
Creating a sequence with _ in the number
Hey I feel like I am probably being a little stupid but I cannot seem to find anywhere how to utilize a sequence with symbol in it.
I want to be able to run a sequence from two date and times: ...
- 1
4
votes
4
answers
2k
views
Is there an alphabetic equivalent of nl or seq?
I have a file where I'd like to number the lines using "the alphabet" (simple ascii a, b, c, etc.) instead of numbers. So where I could do:
nl somefile
I'd like to do something like:
abc somefile
...
- 153
3
votes
3
answers
1k
views
Bash function: Execute $@ command with each argument in sequence executed separately
This is an example function:
function example { echo "TextBefore $@ TextAfter" ; }
This is the command using the function:
example A{1..5}B
The output:
TextBefore A1B A2B A3B A4B A5B TextAfter
How ...
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