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Top Forums Shell Programming and Scripting Help search and replace the last occurance of match in a file Post 303012389 by Don Cragun on Saturday 3rd of February 2018 06:23:52 AM
Old 02-03-2018
Quote:
Originally Posted by antosr7
Thanks for the reply Don cragun
I am working on centos in which ed command not found
Does Centos have the ex utility? If so, for the features I used in the ed script in post #3, ex will work the same way with the same options. On UNIX, Linux, and BSD systems, I usually use ed instead of ex because ex is usually larger and slower to load than ed. The ex utility is bigger because it supplies some extra features that ed doesn't provide, but they aren't used in this script.
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PWD(1)							    BSD General Commands Manual 						    PWD(1)

NAME
pwd -- return working directory name SYNOPSIS
pwd [-L | -P] DESCRIPTION
The pwd utility writes the absolute pathname of the current working directory to the standard output. Some shells may provide a builtin pwd command which is similar or identical to this utility. Consult the builtin(1) manual page. The options are as follows: -L Display the logical current working directory. -P Display the physical current working directory (all symbolic links resolved). If no options are specified, the -L option is assumed. ENVIRONMENT
Environment variables used by pwd: PWD Logical current working directory. EXIT STATUS
The pwd utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), cd(1), csh(1), sh(1), getcwd(3) STANDARDS
The pwd utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). BUGS
In csh(1) the command dirs is always faster because it is built into that shell. However, it can give a different answer in the rare case that the current directory or a containing directory was moved after the shell descended into it. The -L option does not work unless the PWD environment variable is exported by the shell. BSD
April 12, 2003 BSD
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