Hi,
I want to replace a character in every line in the file
say the file looks like this
SOBO20060830094122140014541834 WENP0414541835 ]
SOBO20060830094121140014541834 WENP0414541835
SOBO20060830094121140014541834 WENP0414541835
I want to replace the blue 00 by TS. (6 Replies)
How to replace many numbers with one number in a file.
Many numbers like 444565,454678,443298,etc. i want to replace these with one number (300).Please halp me out. (2 Replies)
Hi All,
I have file contains the following information.
chem00s4.mis.amat.com ] Critical 3/21
chem00s4.mis.amat.com ] Normal 3/22
chem00s4.mis.amat.com ] Normal 3/23
chem00s4.mis.amat.com ] Normal 3/24
chem00s4.mis.amat.com ] Critical 3/25... (2 Replies)
Can someone help me to write a script / command to read in a file, character by character, replace any unknown ASCII characters with space. then write out the file to a new filename/
Thanks! (1 Reply)
Hello all,
can you help me in this problem, assume We have two txt file (file_1 and file_3) one is file_1 contains the data:
a 0
b 1
c 3
a 7
b 4
c 5
b 8
d 6
.
.
.
.
and I need to count the lines with the matching data (a,b,..) and print in new file called file_2 such as the... (4 Replies)
How would I do this? How could i use <> symbols for numbers in the find/replace code below?
perl -pi -e 's/test/tst/'
OR is there a better way?
100 5000 2 432 4 2 33 4 5 6 65 300 301
needs to be:
100 300 2 300 4 2 33 4 5 6 65 300 300
also it might not always need spaces... i... (12 Replies)
Hello,
Can anyone help me?
I need to replace the letters (A, B, C..) of the second column in this file by a number i.e. 1.
current file
0123456 0A123 0003355 Marion
1234567 0B117 0003388 Anthony
1112333 0C345 0459877 Ann
new file
0123456 01123 0003355 Marion
1234567 ... (3 Replies)
Hi All,
I want to keep the name of the songs with their respective extensions only.
Sample Code
========
03 Choti choti gaiya choti choti gaval.mp3
03---Brazil Dhol.mp3
03 PAYALIYA .mp3
04 - Isq Risk .mp3
04%20-%20Oh%20My%20Love(wapking.in).mp3
08 - A2 - Aasan Nahin Yahan .mp3
AE... (3 Replies)
I have a data like this in a file.
05/08/2017,U,01,116326001
05/08/2017,U,01,116226001
05/08/2017,U,01,116726323
05/08/2017,U,01,116236001
I want replace the date(1st column) of all records.
Ex: 05/08/2017 to 04/02/2017
Please use CODE tags when displaying sample input, sample output,... (1 Reply)
Hello,
I am trying to make a awk code that will take 2 files, a txt file like this :
1 1 88 c(1:38, 42, 102)
2 2 128 c(39:41, 43:101, 103:105, 153, 155:189, 292, 344:369)
3 3 84 c(190:249, 603, 606:607, 609:629)
4 4 12 ... (8 Replies)
Discussion started by: nastaziales
8 Replies
LEARN ABOUT CENTOS
shell-quote
SHELL-QUOTE(1) User Contributed Perl Documentation SHELL-QUOTE(1)NAME
shell-quote - quote arguments for safe use, unmodified in a shell command
SYNOPSIS
shell-quote [switch]... arg...
DESCRIPTION
shell-quote lets you pass arbitrary strings through the shell so that they won't be changed by the shell. This lets you process commands
or files with embedded white space or shell globbing characters safely. Here are a few examples.
EXAMPLES
ssh preserving args
When running a remote command with ssh, ssh doesn't preserve the separate arguments it receives. It just joins them with spaces and
passes them to "$SHELL -c". This doesn't work as intended:
ssh host touch 'hi there' # fails
It creates 2 files, hi and there. Instead, do this:
cmd=`shell-quote touch 'hi there'`
ssh host "$cmd"
This gives you just 1 file, hi there.
process find output
It's not ordinarily possible to process an arbitrary list of files output by find with a shell script. Anything you put in $IFS to
split up the output could legitimately be in a file's name. Here's how you can do it using shell-quote:
eval set -- `find -type f -print0 | xargs -0 shell-quote --`
debug shell scripts
shell-quote is better than echo for debugging shell scripts.
debug() {
[ -z "$debug" ] || shell-quote "debug:" "$@"
}
With echo you can't tell the difference between "debug 'foo bar'" and "debug foo bar", but with shell-quote you can.
save a command for later
shell-quote can be used to build up a shell command to run later. Say you want the user to be able to give you switches for a command
you're going to run. If you don't want the switches to be re-evaluated by the shell (which is usually a good idea, else there are
things the user can't pass through), you can do something like this:
user_switches=
while [ $# != 0 ]
do
case x$1 in
x--pass-through)
[ $# -gt 1 ] || die "need an argument for $1"
user_switches="$user_switches "`shell-quote -- "$2"`
shift;;
# process other switches
esac
shift
done
# later
eval "shell-quote some-command $user_switches my args"
OPTIONS --debug
Turn debugging on.
--help
Show the usage message and die.
--version
Show the version number and exit.
AVAILABILITY
The code is licensed under the GNU GPL. Check http://www.argon.org/~roderick/ or CPAN for updated versions.
AUTHOR
Roderick Schertler <roderick@argon.org>
perl v5.16.3 2010-06-11 SHELL-QUOTE(1)