Hi all,
I have a script that scan files, find old templet and replace it with new one.
#!/bin/ksh
file_name=$1
old_templet=$2
new_templet=$3
# Loop through every file like this
for file in file_name
do
cat $file | sed "s/old_templet/new_templet/g" > $file.new
#do a global searce and... (8 Replies)
Hi guys, I use this function which was provided to me by someone at this site. It works perfectly for validating a users input option against allowed options..
example:
validateInput "1" "1 3 4 5" would return 0 (success)
function validateInput {
input=$1
allowedInput=$2
for... (4 Replies)
I have the following code, and I am changing it to
#!/bin/bash
hasArgumentCModInfile=0
hasArgumentSrcsInfile=0
hasArgumentRcvsInfile=0
OLDIFS="$IFS"
IFS="|=" # IFS controls splitting. Split on "|" and "=", not whitespace.
set -- $* # Set the positional... (3 Replies)
I'm obviously very new to this. I'm trying to write a simple for loop that will read the directory names in /Users and then copy a file into the same subdir in each user directory.
I have this, and it works but it isn't great.
#!/bin/bash
HOMEDIRS=/Users/*
for dirs in $HOMEDIRS; do
if ];... (5 Replies)
I am primarily a SQA/Tester and new to korn shell. How can I improve the following script?
#/bin/ksh
SourceLocation=~/Scripts/Test/Source
TrackerLocation=~/Scripts/Test/Tracker
TargetLocation=rdbusse@rdbmbp:/Users/rdbusse/Scripts/Test/Target
for file in $(cd $SourceLocation; ls)
do
... (7 Replies)
Thank you for taking the time to look at this and provide input.
To start, I am not a linux/unix expert but I muddle through the best I can.
I am also in no way shape or form a programmer. Please keep that in mind as you read this script.
This script is designed to find all files in a given... (8 Replies)
Gents,
I did the below code to get an output (report) ,.. the code works fine but I believe it can be more shorted using better method.
Please if you can help, to generate same output improving the code , will be great.
here my code.
# get diff in time
awk '{$9=$8-prev8;prev8=$8;print... (8 Replies)
Discussion started by: jiam912
8 Replies
LEARN ABOUT DEBIAN
unbuffer
UNBUFFER(1) General Commands Manual UNBUFFER(1)NAME
unbuffer - unbuffer output
SYNOPSIS
unbuffer program [ args ]
INTRODUCTION
unbuffer disables the output buffering that occurs when program output is redirected from non-interactive programs. For example, suppose
you are watching the output from a fifo by running it through od and then more.
od -c /tmp/fifo | more
You will not see anything until a full page of output has been produced.
You can disable this automatic buffering as follows:
unbuffer od -c /tmp/fifo | more
Normally, unbuffer does not read from stdin. This simplifies use of unbuffer in some situations. To use unbuffer in a pipeline, use the
-p flag. Example:
process1 | unbuffer -p process2 | process3
CAVEATS
unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits. Consider:
process1 | unbuffer -p process2 | process3
If process1 exits, process2 may not yet have finished. It is impossible for unbuffer to know long to wait for process2 and process2 may
not ever finish, for example, if it is a filter. For expediency, unbuffer simply exits when it encounters an EOF from either its input or
process2.
In order to have a version of unbuffer that worked in all situations, an oracle would be necessary. If you want an application-specific
solution, workarounds or hand-coded Expect may be more suitable. For example, the following example shows how to allow grep to finish pro-
cessing when the cat before it finishes first. Using cat to feed grep would never require unbuffer in real life. It is merely a place-
holder for some imaginary process that may or may not finish. Similarly, the final cat at the end of the pipeline is also a placeholder
for another process.
$ cat /tmp/abcdef.log | grep abc | cat
abcdef
xxxabc defxxx
$ cat /tmp/abcdef.log | unbuffer grep abc | cat
$ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat
abcdef
xxxabc defxxx
$
BUGS
The man page is longer than the program.
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
1 June 1994 UNBUFFER(1)