The string tag has no wiki summary.
2
votes
3answers
105 views
Replace whole line in a file from command-line
I have a text file which has some contents similar to this:
# General information about the project.
project = u'Py6S'
copyright = u'2012, Robin Wilson'
# The version info for the project you're ...
1
vote
1answer
93 views
How to assign value of variable with regex (bash)?
I want to use regex in bash at line of variable assignment
e.g.
oldip="14\.130\.31\.172"
oldip_a="14.130.31.172" << How to use regex to del all '\'? and assign to oldip_a
Do you have any ...
3
votes
3answers
100 views
Extracting text from a text file in bash
I have a large text file that is all one line. In the text are several sections that looks like foo=12345 and I need to extract them all as separate lines, ignoring the rest of the file.
For ...
1
vote
2answers
52 views
Variable name from command output
I have some string, and want to split on colon ":" assigning on variable with name from left part and value from right part. For example:
echo "Title: Some title" | sed 's/:.*//'
gives me wanted ...
4
votes
3answers
263 views
Bash - test for newline?
In various places around the web I've found:
\015
\012
\x0a - hex
\n
\r
all as synonyms for various newlines / carriage returns...
But in this small script I cannot recognise when I come across a ...
2
votes
1answer
180 views
Replace complex string in several files
A hacker got into a web server and added this string (removed some characters for security purposes and added line breaks for readability) in all index.php files:
<?php
...
4
votes
3answers
351 views
Most common encoding for strings in C++ in Linux (and Unix?)
For creating a C++ program that is source code level portable between Windows and Linux and handles internationalization well, there are IMHO three main encodings to consider:
The encoding of the ...
2
votes
4answers
86 views
Generate lists of page numbers for 2-up duplex printing: 2,3,… and 1,4,…
How can I generate the following increments?
2,3,6,7,10,11,14,15,18,19,22,23,26,27,30,31,34,35,38,39,42,43,46,47,...,135
and
...
3
votes
6answers
169 views
Bash - Continuous String Manipulation
#!/bin/bash
FILE="$(basename "$1")"
FILE="${FILE/%.jpeg/.jpg}"
Is there anyway to glue these two lines together into a one-liner?
2
votes
3answers
191 views
Bash string replace multiple chars with one
I'm replacing, from a feed title, all chars except letters and digits with a dash to use the result as a safe filename for any filesystem:
$ t="Episodie 06: No hope of riding home (NEW) - Advanced ...
1
vote
1answer
83 views
Check a bash variable against a file
I have a bash variable ($HTTP_COOKIE) which contains a string. I want to check if this string matches the content of a given file (token). I'm working on a busybox linux.
How should I do?
3
votes
3answers
258 views
How to pass a string parameter on bash function?
I have this code that does work:
get_parameter ()
{
echo "$query" | sed -n 's/^.*name=\([^&]*\).*$/\1/p' | sed "s/%20/ /g"
}
But I want to replace the "name" with the parameter that I pass ...
2
votes
3answers
48 views
expr help - managing strings
I need to take text like this:
A234321=http://www.google..... a normal URL
And pull out only the URL, getting rid of the first part. I think I can use expr to do it, but I can't figure out the ...
3
votes
2answers
165 views
grep surrounding characters of a match
I'm looking to do a find and replace within a giant database dump, and it's not doing what I think should happen. I'd like to grep for my target string in the file, and then see the surrounding 8 ...
2
votes
3answers
54 views
How to pass lines from a file to a bash script, so that each line remains undivided, even if there are spaces?
Given:
$ cat lines.txt
a/b
'c/d e/f'
$ cat 1.sh
#!/bin/sh
./2.sh `cat lines.txt`
$ cat 2.sh
#!/bin/sh
echo p1=$1
echo p2=$2
echo p3=$3
$ ./1.sh
p1=a/b
p2='c/d
p3=e/f'
How do I change lines.txt ...
