Sponsored Content
Full Discussion: substr issue
Top Forums Shell Programming and Scripting substr issue Post 302450064 by Ikon on Wednesday 1st of September 2010 12:11:37 PM
Old 09-01-2010
Code:
a="abcdefg"
echo ${a:0:5}

output:
abcde

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Substr of variable

Dear All, I am new to Unix and need your help. I am trying to write b-shell script which will return substr of some variable like this d="asdfg" return Substr(d,1,5). Please help (5 Replies)
Discussion started by: giviut
5 Replies

2. Shell Programming and Scripting

Using substr

What is the more efficient way to do this (awk only and default FS) ? $ echo "jefe@alm"|awk '{pos = index($0, "@");printf ("USER: %s\n",substr ($0,1,pos-1))}' USER: jefe Thx in advance (2 Replies)
Discussion started by: Klashxx
2 Replies

3. UNIX for Dummies Questions & Answers

Substr

Hi, My input file is 41;2;xxxx;yyyyy.... 41;2;xxxx;yyyyy.... 41;2;xxxx;yyyyy.... .. .. I need to change the second field value from 2 to 1. i.e., 41;1;xxxx;yyyyy.... 41;1;xxxx;yyyyy.... 41;1;xxxx;yyyyy.... .. .. Thanks in advance. (9 Replies)
Discussion started by: deepakwins
9 Replies

4. Shell Programming and Scripting

get substr?

Hi, I have a long string like, aabab|bcbcbcbbc|defgh|paswd123 dedededede|efef|ghijklmn|paswd234 ghghghghgh|ijijii|klllkkk|paswd345 lmlmlmmm|nononononn|opopopopp|paswd456 This string is devided into one space between substrings. This substrings are, aabab|bcbcbcbbc|defgh|paswd123... (6 Replies)
Discussion started by: syamkp
6 Replies

5. Shell Programming and Scripting

substr not working

Hi I am trying to run this command in ksh ...its not working $line="123356572867116w1671716" actual_length = 16 cut_line=`awk 'BEGIN{print substr(ARGV,1,actual_length)}' "$line"` the substr is not giving me an output how can i make it done can anyone hwlp me on this cut_line=`awk... (2 Replies)
Discussion started by: pukars4u
2 Replies

6. UNIX for Dummies Questions & Answers

substr

can anybody explain this code? thanks in advance..:) (6 Replies)
Discussion started by: janani_kalyan
6 Replies

7. Shell Programming and Scripting

Help with awk and substr

I have the following to find lines matching "COMPLETE" and extract parts of it using substr. sed -n "/COMPLETE/p" 1.txt | awk 'BEGIN { FS = "\" } {printf"%s %s:%s \n", substr($3,17,3),substr($6,4,1), substr($7,4,1)}' | sort | uniq > temp.txt Worked fine until the numbers in 2nd & 3rd substr... (5 Replies)
Discussion started by: zpn
5 Replies

8. Shell Programming and Scripting

How to use if/else if with substr?

I have a command like this: listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES" else if (substr ($0,37,1)==0 && NR == 3) print "NO"}' This syntax doesn't work. But I was able to get this to work: listdb ID923 -l |gawk '{if (substr($0,37,1)==1 && NR == 3)print "YES"}' ... (4 Replies)
Discussion started by: newbie2010
4 Replies

9. UNIX for Dummies Questions & Answers

awk substr issue

Hi, I am trying to print last few characters of a string but unable to get the correct output through awk substr. The length of the string and the number of characters to be printed varies day to day. For example,To print 1234 from abcdef1234, i will be given 2 strings,string1(for example... (4 Replies)
Discussion started by: Bobby_2000
4 Replies

10. UNIX for Dummies Questions & Answers

Substr

awk '/^>/{id=$0;next}length>=7 { print id, "\n"$0}' Test.txt Can I use substr to achieve the same task? Thanks! (8 Replies)
Discussion started by: Xterra
8 Replies
echo(1) 						      General Commands Manual							   echo(1)

NAME
echo - echo (print) arguments SYNOPSIS
[arg] ... DESCRIPTION
writes its arguments separated by blanks and terminated by a new-line on the standard output. It also understands C-like escape conven- tions; beware of conflicts with the shell's use of write an alert character backspace print line without appending a new-line form-feed new-line carriage return tab vertical tab backslash the 8-bit character whose ASCII code is the 1-, 2-, 3- or 4-digit octal number n, whose first character must be a zero. write an 8-bit value that is the zero-, one-, two- or three-digit octal number num is useful for producing diagnostics in command files and for sending known data into a pipe. Notes Berkeley differs from this implementation. The former does not implement the backslash escapes. However, the semantics of the escape can be obtained by using the option. The echo command implemented as a built-in function of follows the Berkeley semantics (see csh(1)). EXTERNAL INFLUENCES
Environment Variables determines the interpretation of arg as single and/or multi-byte characters. If is not specified in the environment or is set to the empty string, the value of is used as a default for each unspecified or empty vari- able. If is not specified or is set to the empty string, a default of "C" (see lang(5)) is used instead of If any internationalization variable contains an invalid setting, behaves as if all internationalization variables are set to "C". See environ(5). International Code Set Support Single- and multi-byte character code sets are supported. AUTHOR
was developed by OSF and HP. SEE ALSO
sh(1). BUGS
No characters are printed after the first This is not normally a problem. STANDARDS CONFORMANCE
echo(1)
All times are GMT -4. The time now is 03:32 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy