01-31-2009
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I want to write bash script that will keep on looking for files in a directory and if any file exists, it processes them. I want it to be a background process, which keeps looking for files in a directory.
Is there any way to do that in bash script?
I can loop through all the files like... (4 Replies)
Discussion started by: rladda
4 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I'm trying loop through all files in a directory that have a filename starting with 'CC', and process them one by one. Can any provide an example of how I could do this. I've started with:
if test -f CC*
then
#add files to an array
#loop through array and process the file based on... (1 Reply)
Discussion started by: kshelluser
1 Replies
3. Shell Programming and Scripting
hi
i have two files
cat input.txt
123456| 43256
456482|5893242
cat data.txt
xv 123456 abcd dsk
sd 123456 afsfn dd
df 43256 asdf ff
ss 456482 aa
sf 5893242 ff ff
aa 5893242 aa aa
i need to read inputs from input.txt and find data for data.txt.
then i need to print them as a... (2 Replies)
Discussion started by: windows
2 Replies
4. Shell Programming and Scripting
I have a script to GREP for a text expression within certain files, the files being named file.11012008 thru file.11302008. 30 files in all, one for each day of the month.
Instead of entering the following 3 lines of code 30 different times, I'm trying to find a way to loop the process:
... (6 Replies)
Discussion started by: foleyml
6 Replies
5. Shell Programming and Scripting
hi all
i have some files present in a directory
i want to loop through all the files in the directory
each time i loop
i should change the in_file parameter in the control file and load it into a table using sql loader
there is only one table where i have to load alll the files ... (3 Replies)
Discussion started by: rajesh_tns
3 Replies
6. Shell Programming and Scripting
Hi,
I need to write a script that copies all .zip files in the subdirectories of ~100 folders. No clue how to write a loop that goes into each folder, searches for a .zip file, and copies it and extracts it to a unique location.
I imagine something like
cp -f /home/folder1/*.zip... (6 Replies)
Discussion started by: nez
6 Replies
7. Linux
Hi,
i need to write a shell script where i have to loop through all the file in a directory and rename them based on below condition.
file1.dat
file2.dat
file3.dat
the above files has to be moved to another directory like below
file1_201001.dat
file2_201002.dat
file3_201003.dat... (3 Replies)
Discussion started by: feroz
3 Replies
8. Shell Programming and Scripting
Hi,
I have a small query when comparing two files with awk. I have a small piece of code running in a shell. See below:
gawk -F"," 'NR == FNR { A=1; next } \!A' OFS="," 2011.csv 2012.csv > diff_2012.csv
The code works fine (Note I had to escape the ! with \! to run in shell). What I want... (6 Replies)
Discussion started by: theflamingmoe
6 Replies
9. UNIX for Dummies Questions & Answers
Hi, I have a large number of files which are numbered numerically, i.e. of the type
1.usr, 2.usr, 3.usr ... This is what I'd like to do:
1. In ascending order, use awk to read a value from each file.
2. Write this value to another file (say data.txt). This file, 'data.txt' should be... (4 Replies)
Discussion started by: lost.identity
4 Replies
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 Also
cut(1), grep(1), pr(1)
paste(1)