Ok, I'm stumped and can't seem to find relevant info.
(I'm not even sure, I might have asked something similar before.):
I'm trying to use shell scripting/UNIX commands to extract URLs from a fairly large web page, with a view to ultimately wrapping this in PHP with exec() and including the... (2 Replies)
Hi
I'll be getting a directory path as the input to the script.
E.g. 1 abc/fsg/sdfhgsa/fasgfsd/adfghad/XXX/fhsad
e.g. 2 sadfg/sadgjhgds/sd/dtuc/cghcx/dtyue/dfghsdd/XXX/qytq
This input will be stored in a variable.
My query is how to extract the field in a variable VAR which occurs... (15 Replies)
Hi,
I have a file abcd.txt which has contents in the form of full path file names i.e.
$home> vi abcd.txt
/a/b/c/r1.txt
/q/w/e/r2.txt
/z/x/c/r3.txt
Now I want to retrieve only the directory path name for each row
i.e
/a/b/c/
/q/w/e/
How to get the same through shell script?... (7 Replies)
Hi guys. I'm doing some bash scripting and have run into a snag.
Say I have the path:
/home/one/two/three/
All I need is the 'three' while making a filename.
Is there an easy way to do this? I've tried using grep (because I'm that smart.) cut (as I'm unable to tell how many fields there... (3 Replies)
Hi,
I want to remove a directory path from a file starting with the bracket using sed command.
eg.
(cd /man/abc/def ; \
aaaaa
bbbb
(cd /man/aaaa/aa; \
op.
aaaaa
bbbb
The "(cd /man" is to be consideres as the start.
I tries the below thing, but it didnt worked. Can anyone help.... (3 Replies)
My source file is structured with two words on each line
word1 word2
word1 word2
I am using sed and awk to grab groups of specific lines
line=`awk 'NR>=4 && NR<=7' file1`; echo $line
line=` sed -n '1,5'p file1`; echo $line
The resulting output is
word1 word2 word1 word2 word1... (1 Reply)
Hi All,
i had to split one files into 10 equally. For that i have coded below awk.
OUTPUT_FILE=/home/sit/path/Files/file_EXPORT.lst
DIR_NM=`dirname ${OUTPUT_FILE}`
awk -v CURR_DATE="$(date +'%d-%m-%Y-%H-%M')" -v pth=$DIR_NM '{print >> pth/"tgt_file_name"CURR_DATE"_"NR%10 }' ${OUTPUT_FILE}
... (7 Replies)
Hi All,
Need some help in parsing a directory listing .. output into 2 files
Input file
level1,/level2/level3/level4/ora001,10,IBB23
level1,/level2/level3/level4/ora001/blu1,,IBB23
level1,/level2/level3/level4/ora001/clu1,,IBB23
level1,/level2/level3/level4/ora002,,IBB24... (10 Replies)
Hello,
I am creating a file with all the source folders included in my git branch, when i grep for the used source, i found source included as relative path instead of absolute path, how can convert relative path to absolute path without changing directory to that folder and using readlink -f ? ... (4 Replies)
Discussion started by: Sekhar419
4 Replies
LEARN ABOUT DEBIAN
plan9-join
JOIN(1) General Commands Manual JOIN(1)NAME
join - relational database operator
SYNOPSIS
join [ options ] file1 file2
DESCRIPTION
Join forms, on the standard output, a join of the two relations specified by the lines of file1 and file2. If one of the file names is the
standard input is used.
File1 and file2 must be sorted in increasing ASCII collating sequence on the fields on which they are to be joined, normally the first in
each line.
There is one line in the output for each pair of lines in file1 and file2 that have identical join fields. The output line normally con-
sists of the common field, then the rest of the line from file1, then the rest of the line from file2.
Input fields are normally separated spaces or tabs; output fields by space. In this case, multiple separators count as one, and leading
separators are discarded.
The following options are recognized, with POSIX syntax.
-a n In addition to the normal output, produce a line for each unpairable line in file n, where n is 1 or 2.
-v n Like -a, omitting output for paired lines.
-e s Replace empty output fields by string s.
-1 m
-2 m Join on the mth field of file1 or file2.
-jn m Archaic equivalent for -n m.
-ofields
Each output line comprises the designated fields. The comma-separated field designators are either 0, meaning the join field, or
have the form n.m, where n is a file number and m is a field number. Archaic usage allows separate arguments for field designators.
-tc Use character c as the only separator (tab character) on input and output. Every appearance of c in a line is significant.
EXAMPLES
sort /etc/passwd | join -t: -1 1 -a 1 -e "" - bdays
Add birthdays to the /etc/passwd file, leaving unknown birthdays empty. The layout of /adm/users is given in passwd(5); bdays con-
tains sorted lines like
tr : ' ' </etc/passwd | sort -k 3 3 >temp
join -1 3 -2 3 -o 1.1,2.1 temp temp | awk '$1 < $2'
Print all pairs of users with identical userids.
SOURCE
/src/cmd/join.c
SEE ALSO sort(1), comm(1), awk(1)BUGS
With default field separation, the collating sequence is that of sort -b -ky,y; with -t, the sequence is that of sort -tx -ky,y.
One of the files must be randomly accessible.
JOIN(1)