Tagged Questions
2
votes
2answers
74 views
add “#” in begining to selected lines in File
Requirement : ADD someting (i.e #) in begining of every line in file A which is grep from file B
File A
abcd
abdc
sdfg
asdfa
jon
ram
File B
jon
abcd
grep file B from file A and add "#" ...
0
votes
2answers
66 views
read file record by record and do transformation to the subsequent record based on above record and write into another file
Data file is fixed length file, and I want to read the file record by record and do transformations to the subsequent records based on the prior records (and write the results into another file).
...
6
votes
7answers
607 views
Slick one-liner to convert a list like “1: 2, 3, 4, 5” to “1.2, 1.3, 1.4, 1.5”
Let's say I have a file that looks something like this:
23: a, b, c, d
24: b, d, f
25: c, g
and I want to get output like this:
23.a
23.b
23.c
23.d
24.b
24.d
24.f
25.c
25.g
Of course it's not ...
1
vote
3answers
63 views
Get separate used memory info from free -m comand
As a output of free -m command I got following.
total used free shared buffers cached
Mem: 2496 2260 236 0 5 438
-/+ ...
1
vote
3answers
121 views
How to get data count between two strings with multiple occurences in the same file
I have the data in my file as
START-OF-FIELDS
ID
NAME
DEPT
END-OF-FIELDS
START-OF-DATA
1|joy|cs
2|sam|ec
END-OF-DATA
START-OF-FIELDS
ID
NAME
DOB
DEPT
ADDRESS
END-OF-FIELDS
START-OF-DATA
...
4
votes
4answers
222 views
Count lines matching pattern and matching previous line
I want to count the number of times that a role is successfully deleted. The problem is that one line of the log file will show that the script is about to delete the role:
Prepare to remove role X
...
3
votes
2answers
82 views
Concatenate block of lines with following block of lines
I am trying to process some text exported from lecture slides using pdf2text. The bullet points of some slides show up like this:
title for the list
-
-
-
a bullet point text
another bullet point ...
2
votes
3answers
84 views
Linux command line that will fail if any standard out is produced
Is there a simple utility which I can pipe output to on Linux that will:
Return a success code if there is no output on standard out (and / or standard error).
Return a failure code if output is ...
5
votes
2answers
191 views
Find all files with a Python Shebang
I'm trying to run a PEP8 check against a large source tree. The tree is comprised of a mix of files in various languages. The idea is to check all the Python scripts without having to explicitly list ...
4
votes
4answers
433 views
Text between two tags
I wanna retrieve whatever is between these two tags – <tr> </tr> – from an html doc.
Now I don't have any specific html requirements that would warrant for an html parser. I just plain ...
1
vote
1answer
215 views
How to remove trailing whitespace at the end of the line in given files (more than one)?
I'm sooo fed up with useless spaces in source files that I've even configured vim to show them.
The problem is that I'm very often (if not always) have to deal with useless spaces with my mates ...
1
vote
1answer
329 views
Reading the contents of the file and splitting using ksh
We're using a ksh script for installing one product.
I've another config file, I'd need to read this configuration file from my main script
Content of the Configuration file:
...
2
votes
2answers
426 views
Concatenate multiple files with same header
I have multiple files with the same header and different vectors below that. I need to concatenate all of them but I want only the header of first file to be concatenated and I don't want other ...
3
votes
2answers
590 views
sed: multi-line replace of config block
I have some configuration files that basically look like
(...content...)
# BEGIN DYNAMIC BLOCK - DO NOT EDIT MANUALLY
(... more content ...)
# END DYNAMIC BLOCK
(... even more content ...)
Now, in ...
5
votes
4answers
227 views
Tool to create text files from a template
I have to regularly create 100+ text files from templates.
I currently use an overly complicated shell script. I think there is a smarter way to handle this, but I don't know how.
I have a "database" ...
