2era:
> One clever workaround I stumbled on in these forums a few weeks ago used backticks to get the data out of the destination file before overwriting it.
Thank you! I like the solution :-) but it would not work properly with escape sequences, would it? Chars like "\n" are not treated as escape sequence unless switch -e is enabled - and this switch is not in single unix specification.
:confused:Folks,
I have a file with 50 million records having 2 columns. I have to do the below:
1. Generate some random numbers of a fixed length.
2. Replace the second column of randomly chosen rows with the random numbers.
I tried using a little bit of perl to generate random numbers... (6 Replies)
If I cat a file
And want to go to the first instance of a particular value - what command would I use?
And then from that point where I jumped to search for another value - but only search from that point forward not before the file?
Thanks~ (2 Replies)
Hi all,
I want to insert a string in a specified place of a very large file. I am giving an example of the task:
I love football.
Above is a sentence in a file and I want to insert a string "the" between love and football. It is not sure that where this particular line exists. It has to... (4 Replies)
Dear Gurus,
I need you to advice or suggestion about the best solution to copy data around 200-300G from serverA(location A) to serverB(location B). Normally, I will share folder and then copy but it takes too long time(about 2 days).
Do you have any suggestion or which way should be... (9 Replies)
Hello all.
I'm not getting the hang of Paths. I have a dir w/files that I want to copy to another dir. Right now I am in the "source" directory. I want to copy it to Ch7.
"cp -r source Ch7". Ch7 was already created.
1st msg.: cannot stat `source`: No such file or dir.
I typed pwd & got... (3 Replies)
Hello, I am using tcsh on AIX.
I would like to write a script that does the following:
1. given an inode, how do I find exactly the name of the file?
I know I could do this using ls -i | grep <inode>
but it returns: <inode> <filename>. I need some string manipulation or something to... (1 Reply)
as the title, how can i allow a user to key in one's name, birthday and email address and save it into a specific file i have created earlier?
thank you so much for any reply. (3 Replies)
I have a file that i want to take only the first part of it and discard the rest, to be accurate,I need the first 137097 lines but I cant use split because I dont have enough space on my disck. I need sth to cut the file in its place (3 Replies)
I have to check a directory on Linux (via shell Script which I am trying to build) for about 20 different source files with file patterns and if the files are made available in the directory, I should place flag files for which my other ETL jobs are waiting on to kick off. If the source files are... (6 Replies)
Hi All,
Daily I am getting the updated file.
I have to search for this file in all directories and sub directories.
If the file existed in a particular directory then move this updated file to that particular directory.
If the file is not existed in any of the directories then place this... (4 Replies)
Discussion started by: ROCK_PLSQL
4 Replies
LEARN ABOUT ULTRIX
paste
paste(1) General Commands Manual paste(1)Name
paste - merge file data
Syntax
paste file1 file2...
paste -dlist file1 file2...
paste -s [-dlist] file1 file2...
Description
In the first two forms, concatenates corresponding lines of the given input files file1, file2, etc. It treats each file as a column or
columns of a table and pastes them together horizontally (parallel merging).
In the last form, the command combines subsequent lines of the input file (serial merging).
In all cases, lines are glued together with the tab character, or with characters from an optionally specified list. Output is to the
standard output, so it can be used as the start of a pipe, or as a filter, if - is used in place of a file name.
Options
- Used in place of any file name, to read a line from the standard input. (There is no prompting).
-dlist Replaces characters of all but last file with nontabs characters (default tab). One or more characters immediately following -d
replace the default tab as the line concatenation character. The list is used circularly, i. e. when exhausted, it is reused. In
parallel merging (i. e. no -s option), the lines from the last file are always terminated with a new-line character, not from the
list. The list may contain the special escape sequences:
(new-line), (tab), \ (backslash), and (empty string, not a null
character). Quoting may be necessary, if characters have special meaning to the shell (for example, to get one backslash, use
-d"\\" ).
Without this option, the new-line characters of each but the last file (or last line in case of the -s option) are replaced by a
tab character. This option allows replacing the tab character by one or more alternate characters (see below).
-s Merges subsequent lines rather than one from each input file. Use tab for concatenation, unless a list is specified with -d
option. Regardless of the list, the very last character of the file is forced to be a new-line.
Examples
ls | paste -d" " -
list directory in one column
ls | paste - - - -
list directory in four columns
paste -s -d"
" file
combine pairs of lines into lines
Diagnostics
line too long
Output lines are restricted to 511 characters.
too many files
Except for -s option, no more than 12 input files may be specified.
See Alsocut(1), grep(1), pr(1)paste(1)