01-18-2013
Thank you people....yes using arrays will be the best way of programming. But as I needed to get the system info, I ended up doing what Chubler_XL suggested and it works like a charm. Thank you Chubler_XL
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1. Shell Programming and Scripting
hi,
i want to increment a Variable but it doesnt work.
here my codé
COUNT=1
COUNT= 'expr $COUNT + 1'
i've tried it in the prompt but it print me:
expr: syntaxerror
What does I make wrong? (4 Replies)
Discussion started by: cengiz
4 Replies
2. Shell Programming and Scripting
Hi,
I want to write a perl script, which will increment number stored in file. I want to do this without any file handles. I think we have to use some UNIX commands. I am not sure how to do this with file handles.
Thanks, (1 Reply)
Discussion started by: solitare123
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3. Shell Programming and Scripting
Hi All,
I have a variable n that stores a number.
Eg. echo $n comes out to be 120.
I need to print 121 using echo command on n.
Please advice.
Thanks in advance !! (4 Replies)
Discussion started by: learning_skills
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4. Shell Programming and Scripting
Hello There,
I have been trying to increment the value of variable to 1, 2, 3 etc. but, it displays
1
1+1
1+1+1
.....
:wall:
Could anyone help out with this?
for i in *.*
do
s=`expr $s+1`
echo $s
j=$i$j
mv $i $j
done
Any help is appreciated? (24 Replies)
Discussion started by: amrutha0303
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5. Shell Programming and Scripting
i have a variable that has more than one value. i am declaring another variable, which will have the old variable data one by one. i want to use the second variable to hold the track of all the variable it has parsed from the first one. can somebody help me how do i declare and use the second... (7 Replies)
Discussion started by: gopajitmalakar
7 Replies
6. Shell Programming and Scripting
Hi there everyone!
This is my first post so be gentle.
I have a small bash script that is extracting 3 line every 3 lines. I got the AWK part but i cant do the loop part.
#!/bin/bash
export line=`awk 'END { print NR }' btnew`
echo $line
for i in {1..$line..3} #increment
do
echo... (2 Replies)
Discussion started by: theodorosGreece
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7. Shell Programming and Scripting
Hi All,
I have a file which has hundred of records with fixed number of fields. In each record there is set of 8 characters which represent the duration of that activity. I want to sum up the duration present in all the records for a report. The problem is the duration changes per record so I... (5 Replies)
Discussion started by: danish0909
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8. Shell Programming and Scripting
Hi,
I am able to increment numbers but unable to increment the charters in unix -AIX.
Source : AAA BB CCC
Increment Number : 5
OUTPUT:
AAA BB CCC
AAA BB CCD
AAA BB CCE
AAA BB CCF
AAA BB CCG
Thanks
onesuri
Please use CODE tags as required by the forum rules. I have made a wild... (5 Replies)
Discussion started by: onesuri
5 Replies
9. Shell Programming and Scripting
hey guys,
I need to incerement the date variable for instance
echo `date '+%F %H:%M:00'`
this produces
2014-08-02 20:05:00
-I will grant this to : $Datehour and need to assign 1 hr from now to $Datelasthour
-the script time will be used to talk to DB system information.
however... (4 Replies)
Discussion started by: mo_VERTICASQL
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LEARN ABOUT CENTOS
script
SCRIPT(1) User Commands SCRIPT(1)
NAME
script - make typescript of terminal session
SYNOPSIS
script [options] [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 type-
script.
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
supervise 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.
NOTES
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 Linux Kernel Archive <ftp://ftp.kernel.org/pub/linux/utils/util-
linux/>.
util-linux September 2011 SCRIPT(1)