11-10-2014
@ MadeinGermany: I'm not used to 'double' redirections as yours, wouldnt this overwrite the file_new.txt with just the 'most recent' (as in the current line-) output?
Or would i have to understand (technical incorrect i know) such a command (the behaviour) like cat?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi Unix gurus,
I have a file. I need to insert sequential number at the starting of the file. Fields are delimited by "|". I know the starting number.
Example:
File is as follows
|123|4test|test
|121|2test|test
|x12|1test|test
|vd123|5test|test
starting number is : 120
... (7 Replies)
Discussion started by: jingi1234
7 Replies
2. Shell Programming and Scripting
Hey!
I'm working on a script that will add a user, create some configfiles, and add a crontab for the user.
The crontab looks like the following:
@reboot /home/user/program config.conf &
I would like for this process to start at the end of my script under the corresponding username by... (0 Replies)
Discussion started by: noratx
0 Replies
3. Shell Programming and Scripting
Hi guys,
got a problem here with sed on the command line.
If i have a string as below:
online xx:wer:xcv: sdf:/asdf/http:https-asdfd
How can i match the pattern "http:" and replace the start of the string to the pattern with null?
I tried the following but it doesn't work:
... (3 Replies)
Discussion started by: DrivesMeCrazy
3 Replies
4. Shell Programming and Scripting
hello everyone
my file contains many records, the following is a sample:
BEGIN
ASX1500000050002010120000000308450201012000177
ASX1100002000000201012000000038450201012000220
ASX1600100005000201012000000038450020101200177
ASX1900100006000201067000000058450020101200177... (2 Replies)
Discussion started by: neemoze
2 Replies
5. Shell Programming and Scripting
Dear board,
(I am trying to post this the 3rd time, seems there's some conflicts with my firefox with this forum, now use IE)
------
yes, I have searched the forum, but seems my ? is too complicated.
------------origianl file ---------------
\storage\qweq\ertert\ertert\3452\&234\test.rec... (4 Replies)
Discussion started by: oUo
4 Replies
6. UNIX for Advanced & Expert Users
I have to replace the specific encypted value in the file which is will be a taken as input from user always.PADWD appears two times in the document of which I need to replace the line which start with double quotes. Please help.
"PADWD"\1\"LL9@99V@N=3M0O4I4;J43KH6"---Sample line in the file.
... (6 Replies)
Discussion started by: chandu123
6 Replies
7. Shell Programming and Scripting
hi,
I need some unix command to replace the following thing. The line shuld start with oly numbers. If it starts with anything other than number it shuld be taken back to the last line.
My file:
1234|test
weye|test1|break
576|test|break|title
2369|test|line|break
tite|break... (7 Replies)
Discussion started by: anshaa
7 Replies
8. Shell Programming and Scripting
Hi,
I am trying to remove lines once a string is found till another string is found including the start string and end string. I want to basically grab all the lines starting with color (closing bracket). PS: The line after the closing bracket for color could be anything (currently 'more').... (1 Reply)
Discussion started by: Dabheeruz
1 Replies
9. UNIX for Dummies Questions & Answers
I want to replace lines. The files 1 are (separated by \t)
Gm01 phytozome9_0 three_prime_UTR 70641 70759 . - . ID=PAC:26323927.three_prime_UTR.1;Parent=PAC:26323927;pacid=26323927
Gm01 phytozome9_0 three_prime_UTR 90230 90692 . - . ... (1 Reply)
Discussion started by: grace_shen
1 Replies
10. Shell Programming and Scripting
Replace String at the start of each line (3 Replies)
Discussion started by: Mahesh_RPM
3 Replies
CAT(1) FSF CAT(1)
NAME
cat - concatenate files and print on the standard output
SYNOPSIS
cat [OPTION] [FILE]...
DESCRIPTION
Concatenate FILE(s), or standard input, to standard output.
-A, --show-all
equivalent to -vET
-b, --number-nonblank
number nonblank output lines
-e equivalent to -vE
-E, --show-ends
display $ at end of each line
-n, --number
number all output lines
-s, --squeeze-blank
never more than one single blank line
-t equivalent to -vT
-T, --show-tabs
display TAB characters as ^I
-u (ignored)
-v, --show-nonprinting
use ^ and M- notation, except for LFD and TAB
--help display this help and exit
--version
output version information and exit
With no FILE, or when FILE is -, read standard input.
AUTHOR
Written by Torbjorn Granlund and Richard M. Stallman.
REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>.
COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO
The full documentation for cat is maintained as a Texinfo manual. If the info and cat programs are properly installed at your site, the
command
info cat
should give you access to the complete manual.
cat (coreutils) 4.5.3 February 2003 CAT(1)