I'm using sed to alter a parameter file used in another process. Basically, the file is a template containing a few variables which need to be replaced at runtime.
The problem is that using sed with filenames that contain the / character causes matches to fail.
I've tried doing an escaped forward slash substitution. ie. replace all "/" with "\\\/". It works outside the shell, but not inside. Wierd.
Here's the code fragment:
Ideas??
Also, anyone know a good regexp site - summary etc?
I'm using sed to alter a parameter file used in another process. Basically, the file is a template containing a few variables which need to be replaced at runtime.
The problem is that using sed with filenames that contain the / character causes matches to fail.
eg:... (3 Replies)
I am trying to pass a regular expression variable from a simple script to sed
to remove entries from a text file
e.g.
a='aaaa bbbb cccc ...|...:'
then executing sed from the script
sed s'/"'$a"'//g <$FILE > $FILE"_"1
my output file is always the same as the input file !!
any... (1 Reply)
Hi
Im trying to use sed to change some files which I'll describe here:
I want to use a regular expression to grab the <body> tag from a document. However, the <body> tag can look different so the regular expression used will take care of that and "include" all types of bodies, in example:... (4 Replies)
Ok, so I get that:
sed -n '/START/,/END/p' file
...will print every line from START to END inclusive, but I don't want to see START or END. Apart from the obious:
sed -n '/START/,/END/p' file | grep -v "START" | grep -v "END"
...is there a simpler way of doing this?
Thanks as always! (2 Replies)
Hi,
There's a bug using JavaDoc that generates an error if a tag <a...> is found in a javadoc comment, which is not a HTML reference. For example this error is produced with generics. I want to insert an space between "<" and "a". Expression is able to find where this happens using find and grep: ... (6 Replies)
I have a file that I'm trying to find all the cases of phone number extensions and deleting them. So input file looks like:
abc
x93825
def
13234
x52673
hello
output looks like:
abc
def
13234
hello
Basically delete lines that have 5 numbers following "x". I tried: x\(4) but it... (7 Replies)
I have a file, each line has the date and time twice, once at the start of the line, and again half way along. to neaten things up, and to make it easier to read i'm removing one set.
Wasn't as easy as identify the text and remove, as it'd remove both.
So i added some text at the beginning of... (4 Replies)
Linux 6.X environments (RHEL, Oracle Linux )
I could write basic shell scripts in bash.
In my spare time, I was planning to learn awk or sed to deal with regular expression tasks I have to deal with. But, I gather that python is gaining popularity these days and I came to know that python has a... (5 Replies)
I need to pick a part of string lets stay started with specific character and end with specific character to replace using sed command
the line is like this:my audio book 71-skhdfon1dufgjhgf8.wav'
I want to move the characters beginning with - end before.
I have different files with random... (2 Replies)
Discussion started by: XP_2600
2 Replies
LEARN ABOUT DEBIAN
shtool-subst
SHTOOL-SUBST.TMP(1) GNU Portable Shell Tool SHTOOL-SUBST.TMP(1)NAME
shtool-subst - GNU shtool sed(1) substitution operations
SYNOPSIS
shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext]
[-e|--exec cmd] [-f|--file cmd-file] [file] [file ...]
DESCRIPTION
This command applies one or more sed(1) substitution operations to stdin or any number of files.
OPTIONS
The following command line options are available.
-v, --verbose
Display some processing information.
-t, --trace
Enable the output of the essential shell commands which are executed.
-n, --nop
No operation mode. Actual execution of the essential shell commands which would be executed is suppressed.
-w, --warning
Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution
operations resulted in no content change on all files.
-q, --quiet
Suppress warning on substitution operation resulting in no content change.
-s, --stealth
Stealth operation. Preserve timestamp on file.
-i, --interactive
Enter interactive mode where the user has to approve each operation.
-b, --backup ext
Preserve backup of original file using file name extension ext. Default is to overwrite the original file.
-e, --exec cmd
Specify sed(1) command directly.
-f, --file cmd-file
Read sed(1) command from file.
EXAMPLE
# shell script
shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch]
# RPM spec-file
%install
shtool subst -v -n
-e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g'
-e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g'
`find . -name Makefile -print`
make install
HISTORY
The GNU shtool subst command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 2001 for GNU shtool. It was prompted
by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications.
SEE ALSO shtool(1), sed(1).
18-Jul-2008 shtool 2.0.8 SHTOOL-SUBST.TMP(1)