06-12-2014
Thanks for your explanation. That makes sense. I have not used printf before, seems like it come in handy.
Cheers, for all your help.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Working in a bash environment, in the following example, how do I direct the error message that putting in an invalid flag (-j for example) would normally produce to dev/null?
while getopts "abcd" opt
do
case "$opt" in
i) a etc ;;
r) b etc ;;
f) c etc ;;
v) d... (7 Replies)
Discussion started by: Sniper Pixie
7 Replies
2. Shell Programming and Scripting
Hi,
I have a shellscript that produces a csv that can be opened in Microsoft Excel. It has two columns and about 10 rows in each column, so only twenty cells (at the moment). When the user opened the csv, I wanted it so autofilter was already turned on in columns A1 and B1 (and potentially C1,... (1 Reply)
Discussion started by: rainemaida
1 Replies
3. Shell Programming and Scripting
I have an input file having 7 fields delimited by ,
eg :
1,ABC,hg,1,2,34,3
2,hj,YU,2,3,4,
3,JU,kl,4,5,7,
4,JK,KJ,3,56,4,5
The seventh field here in some lines is empty, whereas the other lines there is a value.
How do I insert string NULL at this location (7th loc) for these lines where... (8 Replies)
Discussion started by: zilch
8 Replies
4. UNIX for Advanced & Expert Users
I am testing some file routines against potential "nasty name" Unix files, such as those with a CR, LF, in the middle or NULL terminated, utf multi-byte character. So, under Bash, I want some way of:
mv "name" "name\0"
with the \0 a real NULL.
Against all my efforts, I have not been... (2 Replies)
Discussion started by: drewk
2 Replies
5. UNIX for Dummies Questions & Answers
Okay so i have a script i wrote in python. I want to turn this script into an INSTALLED COMMAND to run in terminal.
Right now i run it like this in terminal...
$ python myscriptname.py
or
$ ./myscriptname.py
but i want to be able to run it like this in terminal...
$ myscriptname
... (3 Replies)
Discussion started by: cbreiny
3 Replies
6. Shell Programming and Scripting
Hi,
I was just helped with an excellent one liner. Now I need to know how to turn it into a script that I can call at the command line. So, this works with file script:
------------
for file in DATA.txt;
do
awk 'NR==1;NR>1{for (i=1;i<=NF;i++){a+=$i}}END{for (i=1;i<=NF;i++){printf... (3 Replies)
Discussion started by: mikey11415
3 Replies
7. Shell Programming and Scripting
Hi everybody!
I am writing a script which accepts two arguments one of them being a message. All is working except for the message part. That is, to accept text as an argument.
I have trouble storing and echoing a line of text. It seems that writing a few words and store them in an... (6 Replies)
Discussion started by: bluetxxth
6 Replies
8. Shell Programming and Scripting
There are 4 parameters that I have to pass from korn shell to sql script.
1) I have to check if $1 , $2 , $3 and $4 are null values or not .
How can I do that ?
2) Once its determined that these values are null (in the sense they are empty) how can I pass null values to sql script... (11 Replies)
Discussion started by: megha2525
11 Replies
9. Shell Programming and Scripting
I have a shell script which select total count from a table and use its value in a if condition like below
connect_string="username/password@tnsname"
tot=`sqlplus -s $connect_string << EOF
set echo off
set feedback off
set head off
select count(*) from test_table;
EOF
`
if
then
echo... (2 Replies)
Discussion started by: vel4ever
2 Replies
10. Shell Programming and Scripting
I'm new to utilities like socat and netcat and I'm not clear if they will do what I need.
I have a "compileDeployStartWebServer.sh" script and a "StartBrowser.sh" script that are started by emacs/elisp at the same time in two different processes.
I'm using Cygwin bash on Windows 10.
My... (3 Replies)
Discussion started by: siegfried
3 Replies
LEARN ABOUT DEBIAN
script
SCRIPT(1) User Commands SCRIPT(1)
NAME
script -- make typescript of terminal session
SYNOPSIS
script [-a] [-c command] [-e] [-f] [-q] [-t[=file]] [-V] [-h] [file]
DESCRIPTION
script makes a typescript of everything printed on your terminal. It is useful for students who need a hardcopy record of an interactive
session as proof of an assignment, as the typescript file can be printed out later with lpr(1).
If the argument file is given, script saves all dialogue in file. If no file name is given, the typescript is saved in the file typescript.
Options:
-a, --append
Append the output to file or typescript, retaining the prior contents.
-c, --command command
Run the command rather than an interactive shell. This makes it easy for a script to capture the output of a program that behaves
differently when its stdout is not a tty.
-e, --return
Return the exit code of the child process. Uses the same format as bash termination on signal termination exit code is 128+n.
-f, --flush
Flush output after each write. This is nice for telecooperation: one person does `mkfifo foo; script -f foo', and another can super-
vise real-time what is being done using `cat foo'.
--force
Allow the default output destination, i.e. the typescript file, to be a hard or symbolic link. The command will follow a symbolic
link.
-q, --quiet
Be quiet.
-t, --timing[=file]
Output timing data to standard error, or to file when given. This data contains two fields, separated by a space. The first field
indicates how much time elapsed since the previous output. The second field indicates how many characters were output this time.
This information can be used to replay typescripts with realistic typing and output delays.
-V, --version
Output version information and exit.
-h, --help
Output help and exit.
The script ends when the forked shell exits (a control-D to exit the Bourne shell (sh(1)), and exit, logout or control-d (if ignoreeof is not
set) for the C-shell, csh(1)).
Certain interactive commands, such as vi(1), create garbage in the typescript file. Script works best with commands that do not manipulate
the screen, the results are meant to emulate a hardcopy terminal.
ENVIRONMENT
The following environment variable is utilized by script:
SHELL If the variable SHELL exists, the shell forked by script will be that shell. If SHELL is not set, the Bourne shell is assumed. (Most
shells set this variable automatically).
SEE ALSO
csh(1) (for the history mechanism), scriptreplay(1).
HISTORY
The script command appeared in 3.0BSD.
BUGS
Script places everything in the log file, including linefeeds and backspaces. This is not what the naive user expects.
AVAILABILITY
The script command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.
util-linux February 2011 util-linux