All Questions
11 questions
0
votes
0
answers
17
views
How to returns the correct character after manipulating the output of ps ax | grep [duplicate]
I would like to have some help writing a script (which should works on freebsd where I have sh as default) that should grab a precise character when I do a "ps ax | grep" command from the ...
- 579
1
vote
2
answers
73
views
Increment mountpoint name with awk
I am currently writing a script that makes mounting of LUKS devices easier.
In the script I do have a default mountpoint name (data_1), - however, if a mountpoint like that already exists, I want to ...
- 183
1
vote
1
answer
612
views
Compare strings with different encodings
I'm trying to compare a string from a file that is encoded in UTF8
file /dev/eeprom: UTF-8 Unicode text, with very long lines
with a serial number that is hardcoded into the script.
When printing to ...
- 13
0
votes
1
answer
724
views
How to execute multiple commands from an input file and string it to a new output file
I want to execute multiple commands (one after the other) from an input.txt file and output it to a new .csv file.
All the commands run successfully when executed individually, but nothing happens ...
- 11
0
votes
3
answers
64
views
How can a conditional statement be used in a piped command? [closed]
The data being processed will follow specific patterns. In this case I'd like to isolate all characters found in the third column and return any characters found after the "-" but only if that ...
- 481
-1
votes
4
answers
920
views
how to cut float version numbers + linux
how to get only the two first digit from the following command
my target is to get the hadoop basic version
hdp-select | grep hadoop-client | awk '{print $NF}'
2.6.0.3-8
expected results:
2.6
- 13.9k
12
votes
3
answers
7k
views
How do you remove dot character from string without calling sed or awk again?
I have a file called hostlist.txt that contains text like this:
host1.mydomain.com
host2.mydomain.com
anotherhost
www.mydomain.com
login.mydomain.com
somehost
host3.mydomain.com
I have the following ...
- 335
1
vote
1
answer
323
views
How can I access a column of a line from within a string?
I have a file I'm traversing in a for loop. I want to do something like...
for line in file.out; do echo "Some text before $line($2) $line($3)"; done
Where, for every line I insert the 2nd and 3rd ...
- 1,657
1
vote
2
answers
151
views
How do I stream edit progress-like output?
I'm having trouble editing some progress output. In this case it's Postgres' pg_basebackup, but it's similar to other progress output like curl and wget. Take for example the output of this:
...
- 113
3
votes
2
answers
6k
views
Shell script to assign values from a lookup table is too slow
I'm trying to assign some variables from a lookup file with a shell script.
I have something working but it seems unnecessary slow.
Script:
while read line
do
code=`...
- 33
70
votes
14
answers
64k
views
Add thousands separator in a number
In python
re.sub(r"(?<=.)(?=(?:...)+$)", ",", stroke )
To split a number by triplets, e.g.:
echo 123456789 | python -c 'import sys;import re; print re.sub(r"(?<=.)(?=(?:...)+$)", ",", sys....
- 1,191