Top Forums UNIX for Dummies Questions & Answers Limit the number of characters in a bash output Post 302567164 by radoulov on Saturday 22nd of October 2011 05:09:02 PM
curl -s --connect-timeout 30 |
  awk -F'<TD valign=top>| &nbsp;</TD>' '$0 ~ where {
    printf "Today:\n%s\nTomorrow:\n%s\n", \
      (length($8) > max ? substr($8, 1, max) "(...)" : $8), \
      (length($14) > max ? substr($14, 1, max) "(...)" : $14)
    }' where=Melbourne max=20

Sample output:

% curl -s --connect-timeout 30 |
  awk -F'<TD valign=top>| &nbsp;</TD>' '$0 ~ where {
    printf "Today:\n%s\nTomorrow:\n%s\n", \
  (length($8) > max ? substr($8, 1, max) "(...)" : $8), \
  (length($14) > max ? substr($14, 1, max) "(...)" : $14)
    }' where=Melbourne max=20     
Morning fog, late sh(...)
Rain at times.

This User Gave Thanks to radoulov For This Post:
Test Your Knowledge in Computers #344
Difficulty: Medium
In February 2005, Sun announced the Sun Grid, a grid computing deployment on which it offered utility computing services priced at US$2 per CPU/hour for processing and per GB/month for storage.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Limit of no of characters PER LINE in a unix file

Hi , Whats the limit of characters PER LINE in a unix file , allowed for editing..sort , cut , sed , awk etc (5 Replies)
Discussion started by: mohapatra
5 Replies

2. AIX

Is the Length of User ID for AIX Limit to 8 Characters?

Hi, I'm using AIX version 5.3 currently. I'm trying to create a user id, e.g. andyleong, which the system prompted the length is too long. 1. I would like to know is that the length of user id is limited to maximum 8 characters for AIX. 2. Is it apply to all versions of AIX? If no... (2 Replies)
Discussion started by: meihua_t
2 Replies

3. UNIX for Dummies Questions & Answers

Number of long limit

Hi Hi! I'm currently using AIX 5.2 and would like to know where can i find to see that there's a restriction on the number of login times a user can have. Example, I want give a 2 login per user but some one to give 3 login and some one have to give unlit login time (without logging off the... (2 Replies)
Discussion started by: herath
2 Replies

4. Solaris

How to limit number of Commands

Is there a way that I can limit number of commands that one user can run during period of time. For example Max 10 commands per senconds.:) (3 Replies)
Discussion started by: winger0608
3 Replies

5. HP-UX

cron 80 characters limit

Hello everyone. I am trying to set up a monitor based on a "top" command statistic as follows: top -bc -n1 > output.txt I've put this command into a small script which is called by a cron... but there is something strange happening: the cron is limiting the output to output.txt to 80... (3 Replies)
Discussion started by: MartinF
3 Replies

6. Shell Programming and Scripting

Limit on Number of characters in a line - Vi editor

In the vi editor, there seems to be some limit on the number of characters could be allowed in single line. I tried a line with characters up to 1880. It worked. But when i tried with something of 5000 characters, it doesnt work. Any suggestions. Thanks in advance! (2 Replies)
Discussion started by: nram_krishna@ya
2 Replies

7. UNIX for Dummies Questions & Answers

Limit reoccurrance of characters in lines

Hey guys and gals, Working on a script to limit the reoccurrance of characters in a line. sed "/\(.\).*\1/d" -i file.txt sed "/\(.\).*\1.*\1/d" -i file.txt sed "/\(.\).*\1.*\1.*1/d" -i file.txt .. To limit character reoccurance with 1x, 2x, 3x etc. However I would like to be able to... (2 Replies)
Discussion started by: TAPE
2 Replies

8. UNIX for Dummies Questions & Answers

Limit Number of files

hi guys how can i limit number of files in a disk or partition ? or how can i make a limit to inode number for a disk or partition ? ext3 or ext4 file system (1 Reply)
Discussion started by: mhs
1 Replies

9. Shell Programming and Scripting

How to count number of characters of wc -l output?

I want count number of characters / find the length of the 'wc -l' output This is the command bash-3.2$ gzcat /home/sid/file1.dat |wc -l 830752 So final out I want is 6 i.e lenght of 830752 I tried with awk bash-3.2$ gzcat /home/sid/file1.dat |wc -l | awk '{print length ($0)... (3 Replies)
Discussion started by: sidnow
3 Replies

10. Shell Programming and Scripting

Limit the number of characters in bash output

Hi, I need some help with this: I'm making a script which does a couple of things with image files. The script is supposed to echo the number of each image it is processing like this: Processing image1.jpgThe problem is with images with very long filenames, so I want to know how to limit the... (5 Replies)
Discussion started by: Shadow_Reaper
5 Replies
MAX(3)									 1								    MAX(3)

max - Find highest value

mixed max (array $values) DESCRIPTION
mixed max (mixed $value1, mixed $value2, [mixed $...]) If the first and only parameter is an array, max(3) returns the highest value in that array. If at least two parameters are provided, max(3) returns the biggest of these values. Note Values of different types will be compared using the standard comparison rules. For instance, a non-numeric string will be com- pared to an integer as though it were 0, but multiple string values will be compared alphanumerically. The actual value returned will be of the original type with no conversion applied. PARAMETERS
o $values - An array containing the values. o $value1 - Any comparable value. o $value2 - Any comparable value. o $... - Any comparable value. RETURN VALUES
max(3) returns the parameter value considered "highest" according to standard comparisons. If multiple values of different types evaluate as equal (e.g. 0 and 'abc') the first provided to the function will be returned. EXAMPLES
Example #1 Example uses of max(3) <?php echo max(2, 3, 1, 6, 7); // 7 echo max(array(2, 4, 5)); // 5 // The string 'hello' when compared to an int is treated as 0 // Since the two values are equal, the order they are provided determines the result echo max(0, 'hello'); // 0 echo max('hello', 0); // hello // Here we are comparing -1 < 0, so 'hello' is the highest value echo max('hello', -1); // hello // With multiple arrays of different lengths, max returns the longest $val = max(array(2, 2, 2), array(1, 1, 1, 1)); // array(1, 1, 1, 1) // Multiple arrays of the same length are compared from left to right // so in our example: 2 == 2, but 5 > 4 $val = max(array(2, 4, 8), array(2, 5, 1)); // array(2, 5, 1) // If both an array and non-array are given, the array will be returned // as comparisons treat arrays as greater than any other value $val = max('string', array(2, 5, 7), 42); // array(2, 5, 7) // If one argument is NULL or a boolean, it will be compared against // other values using the rule FALSE < TRUE regardless of the other types involved // In the below example, -10 is treated as TRUE in the comparison $val = max(-10, FALSE); // -10 // 0, on the other hand, is treated as FALSE, so is "lower than" TRUE $val = max(0, TRUE); // TRUE ?> SEE ALSO
min(3), count(3). PHP Documentation Group MAX(3)

Featured Tech Videos

All times are GMT -4. The time now is 05:45 PM.
Unix & Linux Forums Content Copyright 1993-2020. All Rights Reserved.
Privacy Policy