I need to perform the following substitutions and have been struggling to determine if or how I can do this with sed or perl.
I need to change the string foo(bar) to moo(bar,0) wherever this occurs in a file.
Is there a way to do this? I'm thinking there might be a wildcard of some sort that... (4 Replies)
Hi,
I have a file 'imei_01.txt' having the following contents:
$ cat imei_01.txt
a123456
bbr22135
yet223
where I want to check whether the expression 'first single alphabet followed by 6 digits' is present in the file (here it is the first record 'a123456')
I am using the following... (5 Replies)
1. Is . wildcard? , the documented wildcard are "*", "?", and ""
. seems mean everything, the follwing cmd will copy everything
cp -r /tmp/test1/. /tmp/test2/
However it doesn't work for rm, why?
$ ls -a
. .. .a .aa aa t2
$ rm -rf .
$ ls -a
. .. .a .aa ... (3 Replies)
hi,
I want to search all files in the current working direcotry and to print in comma (,) seperated output. But I have two patterns to search for.
Files will be in ABC20100508.DAT format.
Search should happen on the format (ABC????????.DAT) along with date(20100508).
I can do a
ls... (2 Replies)
Hi all,
Greetings,
I have the following scenario, The contents of main file are like :
Unix|||||forum|||||||||||||||is||||||the||best
so||||||be|||||on||||||||||||||||||||||||||||||||||||||||||||it
And i need the output in the following form:
Unix=forum=is=the=best
so=be=on=it
... (3 Replies)
Hi,
I am trying to convert multiple Unix pipe symbol or bar into single |. I have tried with the following sed statements, but, no success :(. I need it using sed only
echo "sed 's/\|\+/\|/g'
sed 's/*/\|/'
sed 's/\|*/|/'
sed -r 's/\|+/\|/'
However, the below awk code is working fine.... (4 Replies)
Hello,
I apologize for asking what is probably a simple question but I have been unable to understand the other posts on the topic. I have a file that has the following several lines:
ABC DEF GH:IJKLMNOP_QRS_TUV_11112012_ABCL5
ABC DEF GH:IJKLMNOP_QRS_TUV_11112013_ABCL4
ABC DEF... (4 Replies)
Hi Folks,
I had a requirement to replace a pattern a.*a with 'a' alone. I'm writing a sed command to do that. But I'm not able to work this out. Pls help me.
echo 'a123a456a789' | sed 's/a.*a/a/'
Expected o/p : a456a789
But actual o/p is a789. :confused:
how can write that... (6 Replies)
Hello,
I have one script which looks as given below ,
. ${0%/*}/init && init_job || exit 1
what I understood is ,
1. above syntax has three commands, two on left of || and one on right of ||.
2. ${0%/*} would generate some path.
Question.
A. What is the meaning of ${0%/*} ,... (2 Replies)
I have a csv dataset like this :
C,rs18768
G,rs13785
GA,rs1065
G,rs1801279
T,rs9274407
A,rs730012
I'm thinking of use like awk, sed to covert the dataset to this format: (if it's two character, then keep the same)
CC,rs18768
GG,rs13785
GA,rs1065
GG,rs1801279
TT,rs9274407... (7 Replies)
Discussion started by: nengcheng
7 Replies
LEARN ABOUT OSX
paste
PASTE(1) BSD General Commands Manual PASTE(1)NAME
paste -- merge corresponding or subsequent lines of files
SYNOPSIS
paste [-s] [-d list] file ...
DESCRIPTION
The paste utility concatenates the corresponding lines of the given input files, replacing all but the last file's newline characters with a
single tab character, and writes the resulting lines to standard output. If end-of-file is reached on an input file while other input files
still contain data, the file is treated as if it were an endless source of empty lines.
The options are as follows:
-d list Use one or more of the provided characters to replace the newline characters instead of the default tab. The characters in list
are used circularly, i.e., when list is exhausted the first character from list is reused. This continues until a line from the
last input file (in default operation) or the last line in each file (using the -s option) is displayed, at which time paste
begins selecting characters from the beginning of list again.
The following special characters can also be used in list:
newline character
tab character
\ backslash character
Empty string (not a null character).
Any other character preceded by a backslash is equivalent to the character itself.
-s Concatenate all of the lines of each separate input file in command line order. The newline character of every line except the
last line in each input file is replaced with the tab character, unless otherwise specified by the -d option.
If '-' is specified for one or more of the input files, the standard input is used; standard input is read one line at a time, circularly,
for each instance of '-'.
EXIT STATUS
The paste utility exits 0 on success, and >0 if an error occurs.
EXAMPLES
List the files in the current directory in three columns:
ls | paste - - -
Combine pairs of lines from a file into single lines:
paste -s -d '
' myfile
Number the lines in a file, similar to nl(1):
sed = myfile | paste -s -d '
' - -
Create a colon-separated list of directories named bin, suitable for use in the PATH environment variable:
find / -name bin -type d | paste -s -d : -
SEE ALSO cut(1), lam(1)STANDARDS
The paste utility is expected to be IEEE Std 1003.2 (``POSIX.2'') compatible.
HISTORY
A paste command appeared in Version 32V AT&T UNIX.
BSD June 25, 2004 BSD