Manipulation of text by programs, scripts, etc.

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4answers
73 views

Use `cut` to extract a list from /etc/passwd

How could I use the cut command to extract a list of usernames and login shells from the /etc/passwd file, where the resulting usernames and login shells are separated by a single space? Sort the ...
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4answers
520 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 ...
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3answers
204 views

compare two files based on a column and print it

I have two big files of 400,000 lines. I want to compare the column 1 of the second file with column 1 of first file recursively. If they match I would like to print the whole line. It is a sorted ...
1
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2answers
88 views

Split out data from a column

So at the moment I have some input email addresses and would like to separate the alias and the domain, then copy them to the end of the line. For example, from a line that has ...
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2answers
191 views

Formatting quotes from the fortune to use it with conky

I'm using fortune cookie outputs in my conky script. My fortune output is in the following format: Text1 : Some message including( line break tags, e.g. and comma(,),=,semicolon(;) like ...
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1answer
36 views

Extracting lines around keys from a file

I have a large file with around 15 million lines. The odd lines contains the keys (but not only the keys) and the even lines are the data. That is, the file is something like: WRTZ Tyrosine ...
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1answer
57 views

Fastest way of find and replace in large file with replacing filed present in another file

I have two files. File1 is a csv with 60 fields: 111,Check1|^/h1/h2/h3,22062014184500,20,0..... 111,Check2|^/h43/h40/h9,22062014184500,4,..... 111,Check3|^/h1/h3/h4,22062014184500,0,0,..... File2 ...
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1answer
89 views

Insert a line after a block of text with sed

I have text file: file.conf ### Option: LogFile # Name of log file. # If not set, syslog is used. # # Mandatory: no # Default: # LogFile= ### Option: LogFileSize # Maximum size of ...
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1answer
36 views

Remove given parts of a string with sed?

$ echo '<a href="mailto:NA?Subject=AB42525216 - FOOBAR bla bla - bla">NA</a>' <a href="mailto:NA?Subject=AB42525216 - FOOBAR bla bla - bla">NA</a> $ echo '<a ...
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1answer
24 views

Python: Move lines backward in a textfile

Imagine a text file which contains random text and two unique markers 01 text text text 02 text text text 03 __DELETE_THIS_FIRST__ 04 text text text 05 text text text 06 text text text 07 text text ...
0
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1answer
218 views

How to print gmail inbox messages

I want to print inbox messages one by one (like cat someFile) so that I can parse the message contents. something like printGmail InboxMesg1 | grep some | sed some Using curl I can access the ...
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0answers
69 views

Editing metadata with bash

I have a bunch of photos(jpeg, bmp, png) that I have arranged in such a manner that the metadata is in html form in a separate file. I would like create some script to read this html file and edit ...
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0answers
79 views

sybase and iconv

I inherited an old Ubuntu 6.10 server running php 5.1.6 which is using sybase to connect to MSSQL. A user submitted some text containing an en-dash and crashed one of my script. It turns out sybase ...