Can anyone help me find and replace blank rows in a file with a numeric value (ie blankrow=someTxtOrNumValue), the file is over 500,000 rows long so it would need to be the quickest way as I'll need to do this for multiple files...I would be greatfull for any suggestions....thanks
sample file:... (2 Replies)
Ok, so when a user inputs nothing, simply pressing enter when prompted for a phone number, I get a "./addrbkfct.sh: test: argument expected" error message. I have the following function:
addNumber(){
echo "Phone number: \c";
read number;
echo $number;
if ;... (2 Replies)
hi all
this is the part i am facing a problem
eg data: filename : tr1
+ T 40
this is a sample record in that file ... the value of T can be anything, but will be a single character.
i need to cut from field two, and i am using this command
cut -d " " -f2 tr1 >tr3
and the o/p is ... (7 Replies)
Hi,
I have a ksh which peocess and get me data from 3 days...
ie if i process it on jan 28.. it gets data for 25, 26 and 27.... the process run every day and get previous 3 days data...all this data is appened to a file lets call time.out
Now time.out cannot have deplicate data so what i want... (10 Replies)
Hi, I am having a file and grabbed the contents of the field according to field widths. The command i used is:
awk 'BEGIN{FIELDWIDTHS="10 25 20 14 6 10"}{print$4,$5,$6}' newtext.text >test1.txt
i got the output for example:
val1 val2 val3
<blank> ... (3 Replies)
Ok, I am brand new to UNIX and I am trying to learn a cross between basic script and database use. I had got some ideas off the net on simple ideas for learning UNIX. I am working on creating a simple phone book program that allows myself to enter our employees from work into a phone book text... (0 Replies)
this section of the awk code i have here takes file to work with from the user.
the user specifies the file name from the command line and the file name is assigned to the variable $FLIST
awk 'BEGIN {
while((getline < "'${FLIST}'")>0)
S
FS="\n"; RS="}\n"
}
now, i dont want... (5 Replies)
Hi,
I'm having an issue trying to produce a hierarchical directory menu that has either any directories listed in a specific directory as options or options with spaces in the option content or null content.
So the menu function gets passed a base directory, it then lists any .sh scripts in... (6 Replies)
Greetings all
I have a delimited text file (the delimiter is ';') where certain fields consist of many blanks e.g. ; ; and ; ;
Before I separate the data I need to eliminate these blanks altogether.
I tried the sed command using the following syntax:
sed -i 's/; *;/;;/g' <filename>
... (15 Replies)
Hi I want to read a text file and replace various number of spaces between each string in to a single "," or any other character .Please let me know the command to do so. My input file is a txt file which is the output of a SQL table extract so it contains so many spaces between each column of the... (2 Replies)
Discussion started by: Hari Prasanth
2 Replies
LEARN ABOUT FREEBSD
smrsh
SMRSH(8) System Manager's Manual SMRSH(8)NAME
smrsh - restricted shell for sendmail
SYNOPSIS
smrsh -c command
DESCRIPTION
The smrsh program is intended as a replacement for sh for use in the ``prog'' mailer in sendmail(8) configuration files. It sharply limits
the commands that can be run using the ``|program'' syntax of sendmail in order to improve the over all security of your system. Briefly,
even if a ``bad guy'' can get sendmail to run a program without going through an alias or forward file, smrsh limits the set of programs
that he or she can execute.
Briefly, smrsh limits programs to be in a single directory, by default /usr/libexec/sm.bin, allowing the system administrator to choose the
set of acceptable commands, and to the shell builtin commands ``exec'', ``exit'', and ``echo''. It also rejects any commands with the
characters ``', `<', `>', `;', `$', `(', `)', `
' (carriage return), or `
' (newline) on the command line to prevent ``end run'' attacks.
It allows ``||'' and ``&&'' to enable commands like: ``"|exec /usr/local/bin/filter || exit 75"''
Initial pathnames on programs are stripped, so forwarding to ``/usr/bin/vacation'', ``/home/server/mydir/bin/vacation'', and ``vacation''
all actually forward to ``/usr/libexec/sm.bin/vacation''.
System administrators should be conservative about populating the sm.bin directory. For example, a reasonable additions is vacation(1),
and the like. No matter how brow-beaten you may be, never include any shell or shell-like program (such as perl(1)) in the sm.bin direc-
tory. Note that this does not restrict the use of shell or perl scripts in the sm.bin directory (using the ``#!'' syntax); it simply dis-
allows execution of arbitrary programs. Also, including mail filtering programs such as procmail(1) is a very bad idea. procmail(1)
allows users to run arbitrary programs in their procmailrc(5).
COMPILATION
Compilation should be trivial on most systems. You may need to use -DSMRSH_PATH="path" to adjust the default search path (defaults to
``/bin:/usr/bin'') and/or -DSMRSH_CMDDIR="dir" to change the default program directory (defaults to ``/usr/libexec/sm.bin'').
FILES
/usr/adm/sm.bin - default directory for restricted programs on most OSs
/var/adm/sm.bin - directory for restricted programs on HP UX and Solaris
/usr/libexec/sm.bin - directory for restricted programs on FreeBSD (>= 3.3) and DragonFly BSD
SEE ALSO sendmail(8)
$Date: 2013-11-22 20:52:00 $ SMRSH(8)