03-09-2010
Hi Ygor
Thank you for your reply.
Quote:
Originally Posted by
Ygor
Try...
Code:
nawk 'c-->0;$0~s{if(b)for(c=b+1;c>1;c--)print r[(NR-c+1)%b];print;c=a}b{r[NR%b]=$0}' b=2 a=4 s="string" file1
...where "b" and "a" are the number of lines to print before and after string "s".
I'd be really grateful if you could break this down and explain what is going on in this command as I'm quite new to this.
Kind regards
abcd69
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LEARN ABOUT OSF1
unix2dos
unix2dos(1) General Commands Manual unix2dos(1)
NAME
unix2dos - mtools utility to convert a UNIX file to DOS format
SYNOPSIS
unix2dos unixfile
OPTIONS
None
OPERANDS
Name of the file to convert.
DESCRIPTION
The unix2dos command converts a file from UNIX format to DOS format. The converted file replaces the original file.
Subdirectory names that contain the '/' or '' separator are supported. If you use the '' separator or wildcards, you must enclose file
names in quotes to protect them from the shell.
The mcd command can be used to establish the device and the current working directory (relative to DOS), otherwise the default is A:.
EXIT STATUS
The following exit values are returned: Success. Failure.
ENVIRONMENT VARIABLES
The following environment variables affect the execution of unix2dos: If set, this variable names the file that contains the name of the
current mtools working directory as established by the mcd command. If this variable is not set, the file $HOME/.mcwd is used.
FILES
Contains the name of the current mtools working directory as established by the mcd command. If this file does not exist, the default
mtools working directory is A:. Executable file
SEE ALSO
Commands: mcopy(1), mread(1), mtools(1) mtype(1), mwrite(1)
unix2dos(1)