01-29-2010
Sed - add text to start of line if 1st char anything but space
Problem: I have a lot of files, the files first line should always have 4 spaces before any text. Occasionally some of the files will miss the leading spaces and it's a problem. This is only in the first line.
So if there are 4 spaces then text, do nothing. If there are not 4 spaces, add 4 spaces, then put the text after the aforementioned 4 spaces.
I think I'm close, but I've spent a stupid amount of time googling with little luck.
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GCJH(1) GNU GCJH(1)
NAME
gcjh - - generate header files from Java class files
SYNOPSIS
gcjh [OPTIONS]... CLASS...
DESCRIPTION
The "gcjh" program is used to generate header files from class files. It can generate both CNI and JNI header files, as well as stub
implementation files which can be used as a basis for implementing the required native methods. It is similar to "javah" but has slightly
different command line options, and defaults to CNI.
OPTIONS
See "javah" for a full description; this page only lists the additional options provided by "gcjh".
CNI text options
-add text
Insert text into class body.
-append text
Append text after class declaration.
-friend text
Insert text as a "friend" declaration.
-prepend text
Insert text before start of class.
Compatibility options (unused)
-td DIR
-M
-MM
-MD
-MMD
Unused compatibility option.
Standard options:
-help
Print help text, then exit.
-version
Print version number, then exit.
-JOPTION
Pass argument to the Java runtime.
BUGS
SEE ALSO
javac(1), javah(1), ...
AUTHOR
0.98 2010-07-05 GCJH(1)