Sed is a command-line stream editor for filtering and transforming text.

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2
votes
6answers
103 views

Printing specific section of a line when a trigger value is present

I'm parsing data in the following format: prop1=value1:prop2=value2:prop3=value3+prop1=value4:prop2=value5 parts of the string are delimited by + properties can appear in any order the desired ...
0
votes
4answers
120 views

Adding a character to every other text line

I have a huge (ca. 20G) text file which contains millions of passages (a.k.a. paragraphs) with headers. Headers and paragraphs are always one line each, e.g., Sunshine This is a sunny day. ...
2
votes
3answers
465 views

Reverse match in sed, replace opposite of what was found

Say I have this output from my syslog, precalculated src_hash => 20 bytes @ 0x7f811c001e20 A6 2D E5 CD 2A BA F0 42 56 66 19 D4 61 1A E3 A0 .-..*..BVf..a... C7 5E 5F 77 ...
0
votes
3answers
86 views

Finding and replacing text inside awk block

I want to find and replace a value inside awk block. Here is a sample input file to my script P1 10,9:11/18013013582 ,10:1 ,167:0 ,487:5/E.164 11,9:15/310410532169026 ,10:60 ,167:0 ,487:4/IMSI ...
0
votes
3answers
223 views

For all files that does not contain a string, prepend a string to the file

I am trying to iterate through a list of html files, check to see if {% load static from staticfiles %} exists in the file and if it does not exists, prepend {% load static from staticfiles %} to it. ...
3
votes
2answers
665 views

Split log file by time range

I have a log file and would like to cut it into copies of 15min. In the log file the lines start with: dd mmm yyyy hh:mm:ss,xxx e.g. 12 Feb 2013 16:05:02,xxx log text... and the file rotates ...
1
vote
2answers
44 views

extract certain string, search and replace or keep a longer string contain the extracted value

The input file that needs to be edited is as below (can have more rows): bundle_id target_id length eff_length tot_counts uniq_counts est_counts eff_counts ambig_distr_alpha ...
1
vote
2answers
129 views

Compare set of values from two files and print the output in third file in awk

Hi friends i have problem with comparing two files.I'll try my best to explain.I have two file f1 and f2 which i have to compare on basis of two sets Parameter(p) and Value(v). Basically f1 contains ...
-1
votes
2answers
97 views

reading from file using the command sed

I have a list of folders (the name of those folders mentioned in the file list.txt).I wanted to read the line 2 in all the files (the files in the folders has the same name) and print that line in a ...
1
vote
1answer
44 views

substitute complex text string in several files that contains special characters

I need to replace a complex string in several files in a directory. The string that needs replaced is: ...
1
vote
1answer
144 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 ...
0
votes
1answer
52 views

Need to swap the -(minus) sign for only numbers and not text for a given row

I have a input in which delimeter is <;| like given below:- 1-<;|3-Text <;|3.13-<;|0.28-<;|9 0.12-<;|2-Text <;|3.99-<;|4.11-<;|6 0.13-<;|3-Text ...
0
votes
1answer
37 views

Replacing code between two JavaScript comments

I need to set a value of JavaScript variable from bash. Variable lives in index.html file and I'd like to use unix SED command to do that. Inside index.html I have it lake this: <script> ...
0
votes
1answer
53 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 ...
0
votes
1answer
35 views

sed replace misplaces slashes

I have the following code in a LaTeX file: for \emph{service} in \emph{host}.resources: for \emph{file} in \emph{host}.resources: \underline{service}.requires.add(\underline{file}) ...
0
votes
1answer
183 views

Search for pattern across multiple files and replace a sub-part in all occurences

I am helping a friend with her thesis written in LaTeX and I need a quick solution for a "search and replace". Using a terminal in Linux, how can I find the following pattern: \caption{*\cite{*}} ...
0
votes
1answer
272 views

How do I use the SED command to remove injected code from multiple files?

One of the domains on my Centos 6.5 (64 bit) server has been compromised. Having run a detection script on the public_html folder I have identified all the files with this code injection. I ...
-1
votes
1answer
33 views

How do I change the Old Directory path to New Directory path using SED command

I have the old path it contains the some files. /home/ubuntu/Desktop/test-dir Now I want to change the test-dir to new-test-dir directory. /home/ubuntu/Desktop/new-test-dir How do I change ...
-2
votes
1answer
55 views

Extract/print every 3rd occurence of pattern

I need help with extracting/printing lines until a stop pattern. This needs to happen after every 3rd occurrence of start pattern, i.e ERROR_FILE_NOT_FOUND and continue until the end of the file. ...
7
votes
0answers
224 views

regarding portable sed -e… d b or ! b?

In this edit St├ęphane Chazelas POSIXifies (again) my sed formatting by inserting an -expression break and another -expression statement. Now, I might just ask him why in the comments, I suppose, but ...
2
votes
0answers
1k views

sed couldn't flush stdout no space left on device?

What could be the reason for this error : sed couldn't flush stdout no space left on device This is come of the stuff that i am doing at last in my code sed -n '/.*needs to be executed ...
1
vote
0answers
27 views

OpenWRT missing OD (octal dump)

I have a bash function using od command. Now I'm trying to run in on OpenWRT and see that in has not od. Also can't find it using install from opkg, because I can't find it. Is there a possibility to ...
1
vote
0answers
36 views

Why doesn't this sed substitution for a non-ASCII byte work?

I tried this substitution with GNU sed on OS X (4.2.2 installed through Homebrew). But it doesn't work. printf "Hello\x92 World" | gsed -r "s/[\x92]/'/g" The expected output is: Hello' World The ...
1
vote
0answers
32 views

Create files from templates, substitutions in middle of other words

Is there a way to convince m4 to replace a macro in the middle of a word? I would like this file, day.m4: define(Sat,Cat)dnl Saturday and this command: m4 day.m4 to produce this output: ...
1
vote
0answers
551 views

Dynamic search and replace in Ksh

Machines at work follow a constant naming pattern: host[domain]_[id] where [domain] is either "d" for dev machines and "p" for production machines, and [id] is a 2-digit string that is different for ...
0
votes
0answers
25 views

to check fields in configuration file

i have configuration file in which first field is filename, second field is the column if we find the value of that column is null in the filename that is given in first column. if any of value of ...
0
votes
0answers
43 views

Find & replace image URLs in one file from another file

I am trying to replace all the image source URLs in an HTML file from a list of URLs in a text file. File1.html <td class="MetadataRes" width="380px" colspan="2" style="border-top: 1px #336699 ...