06-21-2004
The whole point is to avoid reading the entire file even once. So even something like
sed '$d' <old > new
is too much.
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For lists in sed, to say what to replace, is this correct:
I am hoping that this would recognise that either a "." is present, or that the substitution happens at the end of the line.
For files with extensions , my script works perfectly.
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How to copy entire file content into another file being in last line mode of vi ?
---------- Post updated at 10:07 AM ---------- Previous update was at 09:56 AM ----------
Got it :
:1,30w file.txt (1 Reply)
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Hi,
I am having a file which is fix length and comma seperated. And I want to replace values for one column.
I am reading file line by line in variable $LINE and then replacing the string.
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Hi ,
I need your kind help for my below requirement
I need to copy and entire txt file to a certain position to the target file .
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Hi
I have a data file 'File2' consisting of 105670 lines. I want to copy and paste 17928 lines from 'File1' to 'File2' but I want to place it in between lines 21 and 17950 of 'File2'. How do I do it in awk?
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X
Y
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7 8 9
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Hi
I have a data file 'File2' consisting of 105670 lines. I want to copy and paste 17928 lines from 'File1' to 'File2' but I want to place it in between lines 21 and 17950 of 'File2'. How do I do it in awk?
For example-
File A has 5 lines
X
Y
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and File B has
A
b... (1 Reply)
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Data "12345#22"
Fred
ID 12345
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Wilma
Dino
Data "123#22"
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ID 123
Age 33
Jane
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so i have several files that look somewhat like this:
{
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<newline>
<newline>
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(
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Greetings.
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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)