I'm only new to shell programming and have been given a task to do a program in .sh, however I've come to a point where I'm not sure what to do. This is my code so far:
# process all arguments (i.e. loop while $1 is present)
while ; do
# echo "Arg is $1"
case $1 in
-h*|-H*) echo "help... (4 Replies)
Hi,
I have a file with 3 columns in it that are comma separated and it has about 5000 lines. What I want to do is find the most common value in column 3 using awk or a shell script or whatever works! I'm totally stuck on how to do this.
e.g.
value1,value2,bob
value1,value2,bob... (12 Replies)
Hi guys,
I am stuck in this problem. Please help.
I have two files.
FILE1 (with records starting from '>' )
>TC1723_3 similar to Scific_A7Q9Q3
EMSPSQDYCDDYFKLTYPCTAGAQYYGRGALPVYWNYNYGAIGEALKLDLLNHPEYIEQN
ATMAFQAAIWRWMNPMKKGQPSAHDAFVGNWKP
>TC214_2 similar to Quiet_Ref100_Q8W2B2 Cluster;... (1 Reply)
I will be performing a task on several directories, each containing a large number of files (2500+) that follow a regular naming convention:
YYYY_MM_DD_XX.foo_bar.A.B.some_different_stuff.EXT
What I would like to do is automatically discover the part of the filenames that are common to all... (1 Reply)
I currently have publication lists for ~3 dozen faculty members. I need to find out how many publications are in common across all faculty members - person 1 with person 2, person 1 with person 3, person 2 with person 3, person 1 with both person 2 and person 3, etc.
One person may have
Last1,... (5 Replies)
Hello Everyone,
I am looking for a way to extract substrings to local variables. Here is the format of the string variable i am using :
/var/x/www && /usr/x/share/doc && /etc/x/logs
where the substrings i must extract are the "/var/x/www" and such.
I was originally thinking of using... (15 Replies)
Dear All,
I have 2 files. If field 1, 2, 4 and 5 matches in both file1 and file2, I want to print the whole line of file1 and file2 one after another in my output file.
File1:
sc2/80 20 . A T 86 F=5;U=4
sc2/60 55 . G T ... (1 Reply)
Hello gurus,
I have a lookup table
cat tmp1
\\\erw``~ 1
^774574574565665f\] 2
()42543^
and I`m trying to compare a bunch of strings such that, either the lookup table column 1, or the string to be looked up are substrings of each other (and return the second lookup column if yes).
... (2 Replies)
Hello, I need to find the intersection across 10 columns. Kindly help.
my file (INPUT.csv) looks like this
4_R 4_S 8_R 8_S 12_R 12_S 24_R 24_S
LOC_Os01g01010 LOC_Os01g01010 LOC_Os01g01010 LOC_Os04g48290 LOC_Os01g01010 LOC_Os01g01010... (1 Reply)
Discussion started by: Sanchari
1 Replies
LEARN ABOUT PHP
ereg
EREG(3) 1 EREG(3)ereg - Regular expression matchSYNOPSIS
int ereg (string $pattern, string $string, [array &$regs])
DESCRIPTION
Searches a $string for matches to the regular expression given in $pattern in a case-sensitive way.
Warning
This function has been DEPRECATED as of PHP 5.3.0. Relying on this feature is highly discouraged.
PARAMETERS
o $pattern
- Case sensitive regular expression.
o $string
- The input string.
o $regs
- If matches are found for parenthesized substrings of $pattern and the function is called with the third argument $regs, the
matches will be stored in the elements of the array $regs. $regs[1] will contain the substring which starts at the first left
parenthesis; $regs[2] will contain the substring starting at the second, and so on. $regs[0] will contain a copy of the complete
string matched.
RETURN VALUES
Returns the length of the matched string if a match for $pattern was found in $string, or FALSE if no matches were found or an error
occurred.
If the optional parameter $regs was not passed or the length of the matched string is 0, this function returns 1.
CHANGELOG
+--------+---------------------------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+---------------------------------------------------+
| 4.1.0 | |
| | |
| | Up to (and including) PHP 4.1.0 $regs will be |
| | filled with exactly ten elements, even though |
| | more or fewer than ten parenthesized substrings |
| | may actually have matched. This has no effect on |
| | ereg(3)'s ability to match more substrings. If no |
| | matches are found, $regs will not be altered by |
| | ereg(3). |
| | |
+--------+---------------------------------------------------+
EXAMPLES
Example #1
ereg(3) example
The following code snippet takes a date in ISO format (YYYY-MM-DD) and prints it in DD.MM.YYYY format:
<?php
if (ereg ("([0-9]{4})-([0-9]{1,2})-([0-9]{1,2})", $date, $regs)) {
echo "$regs[3].$regs[2].$regs[1]";
} else {
echo "Invalid date format: $date";
}
?>
NOTES
Note
As of PHP 5.3.0, the regex extension is deprecated in favor of the PCRE extension. Calling this function will issue an E_DEPRECATED
notice. See the list of differences for help on converting to PCRE.
Tip
ereg(3) is deprecated as of PHP 5.3.0. preg_match(3) is the suggested alternative to this function.
SEE ALSO eregi(3), ereg_replace(3), eregi_replace(3), preg_match(3), strpos(3), strstr(3), quotemeta(3).
PHP Documentation Group EREG(3)