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Top Forums Shell Programming and Scripting Perl script to read string from file#1 and find/replace in file#2 Post 302951674 by Aia on Sunday 9th of August 2015 11:46:31 AM
Old 08-09-2015
Quote:
Originally Posted by pchang
I tried your code but getting the following error:
[...]
I made test.pl executable and /usr/bin/perl executable exists on the Linux box.
It looks like the code is not being interpreted by Perl, but rather sh.
Executing it as /usr/bin/perl test.pl might fix that.
However, I doubt that it would produce a satisfactory result. Not in that amount of substitutions.

The substitution process is as good as it gets in sed or Perl. All that I was trying to do was to transfer the burden of the task to the REGEX engine, instead of the loop from line to line.
 

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GZEXE(1)						      General Commands Manual							  GZEXE(1)

NAME
gzexe - compress executable files in place SYNOPSIS
gzexe name ... DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a penalty in performance). For example if you execute ``gzexe /usr/bin/gdb'' it will create the following two files: -rwxr-xr-x 1 root root 1026675 Jun 7 13:53 /usr/bin/gdb -rwxr-xr-x 1 root root 2304524 May 30 13:02 /usr/bin/gdb~ /usr/bin/gdb~ is the original file and /usr/bin/gdb is the self-uncompressing executable file. You can remove /usr/bin/gdb~ once you are sure that /usr/bin/gdb works properly. This utility is most useful on systems with very small disks. OPTIONS
-d Decompress the given executables instead of compressing them. SEE ALSO
gzip(1), znew(1), zmore(1), zcmp(1), zforce(1) CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the PATH environment variable to find gzip and some standard utilities (basename, chmod, ln, mkdir, mktemp, rm, sleep, and tail). BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases, using chmod or chown. GZEXE(1)
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