Unix Tip: REMOVING CONTROL CHARACTERS

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 2372 - June 30, 2005

http://www.ugu.com/sui/ugu/show?tip.today

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REMOVING CONTROL CHARACTERS

Have you ever faced problem of removing
Control Characters from Multiple Files,

Here is the solution create script file
with following entries,

vi -c "%s/^M//g" -c "wq" junk1.c
vi -c "%s/^M//g" -c "wq" junk2.c
vi -c "%s/^M//g" -c "wq" junk3.c
vi -c "%s/^M//g" -c "wq" junk4.c
vi -c "%s/^M//g" -c "wq" junk5.c
vi -c "%s/^M//g" -c "wq" junk6.c


If the filename of this script file
is "xyz":

#./xyz

This will remove the control characters(^M)
from all the files junk1.c ... junk6.c

To create ^M = Holding the control
press 'v' & 'm'.

To create ^H = Holding the control press
'v' & 'h'.

This tip generously supported by: srikanbn@miel.mot.com

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DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.

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Unix Tip: GZIP ZNEW AND COMPRESS

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 2371 - June 29, 2005

http://www.ugu.com/sui/ugu/show?tip.today

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GZIP ZNEW AND COMPRESS

In HP Unix "compress" command will compress
around 50 to 60%. "gzip" will compress the
file upto 80%. There is a command available
in HP's unix to convert a compress file to
a zip file. "znew" will automatically
convert compressed files(*.Z) to gunzip
files(*.gz).

Example:
$ znew test.Z

This tip generously supported by: kesiraju.sekhar@ehpt.com

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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================

Unix Tip: QUICKLY FINDING SUN MEMORY

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 2370 - June 28, 2005

http://www.ugu.com/sui/ugu/show?tip.today

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QUICKLY FINDING SUN MEMORY

To quickly find the amount of RAM a
Sun Machine has:

prtconf | grep Mem

This tip generously supported by:
svijay@cadence.com

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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================

Unix Tip: VALUE OF LAST PARAMETER

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 2369 - June 27, 2005

http://www.ugu.com/sui/ugu/show?tip.today

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VALUE OF LAST PARAMETER

Get the value of the last parameter
passed into a korn shell script.

eval last=\${$#}

Now $last is the last parameter passed in.

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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================

Unix Tip: INSERT A LINE

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 2368 - June 26, 2005

http://www.ugu.com/sui/ugu/show?tip.today

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INSERT A LINE

If you want to insert a line
at the top (or anywhere for that
matter) of a file within a shell
script, use the ed editor.

EXAMPLE:

string="hello"
ed << EOF
e any_file
1i
${string}

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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================

Unix Tip: FINDING CORE FILES

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UNIX GURU UNIVERSE
UNIX HOT TIP

Unix Tip 2367 - June 25, 2005

http://www.ugu.com/sui/ugu/show?tip.today

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FINDING CORE FILES

To find and remove core files
conditionally:

# find ~ -name core -exec file {} \; -exec rm -i {} \;

"file" will show which executable
the core file is for and the -i
option to rm will allow you to
choose weather to delete it or not.

#### EXAMPLE ##############

# find ~ -name core -exec file {} \; -exec rm -i {} \;

/my/home/core: ELF 32-bit LSB core file of 'netscape-commun'
(signal 3), Intel 8
rm: remove `/my/home/core'? y

This tip generously supported by: sparkman@webmd.net

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==========================================================================
DISCLAIMER: All UNIX HOT TIPS ARE OWNED BY THE UNIX GURU UNIVERSE AND ARE
NOT TO BE SOLD, PRINTED OR USED WITHOUT THE WRITTEN CONSENT OF THE UNIX
GURU UNIVERSE. ALL TIPS ARE "USE AT YOUR OWN RISK". UGU ADVISES THAT
ALL TIPS BE TESTED IN A NON-PRODUCTION DEVELOPMENT ENVIRONMENT FIRST.

Unix Guru Universe - www.ugu.com - tips@ugu.com - Copyright 1994-2001
==========================================================================