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1. Shell Programming and Scripting
OS : RHEL 6.7
Shell : bash
I am trying to remove the leading the spaces in the below file
$ cat pattern2.txt
hello1
hello2
hello3
hello4
Expected output is shown below.
$ cat pattern2.txt
hello1
hello2
hello3
hello4 (2 Replies)
Discussion started by: John K
2 Replies
2. Shell Programming and Scripting
Hi,
Anyone can help using SED searches a character string for a specified delimiter character, and returns a leading or trailing space/blank.
Text file :
"1"|"ExternalClassDEA519CF5"|"Art1"
"2"|"ExternalClass563EA516C"|"Art3"
"3"|"ExternalClass305ED16B8"|"Art9"
...
...
... (2 Replies)
Discussion started by: fspalero
2 Replies
3. UNIX for Beginners Questions & Answers
Script showStreamsGLIS$reg.$env.ksh gives me output as below-
Job Stime Etime Status ExitCode
GLIS-AS-S-EFL-LOCK-B ----- ----- OI 103313880/0
GLIS-ALL-Q-EOD-FX-UPDT-1730-B ----- ----- TE 0/0
GLIS-TK-S-BWSOD-B ... (8 Replies)
Discussion started by: Tanu
8 Replies
4. Shell Programming and Scripting
Hi,
I am having problem in deleting the leading spaces:-
cat x.csv
baseball,NULL,8798765,Most played
baseball,NULL,8928192,Most played
baseball,NULL,5678945,Most played
cricket,NOTNULL,125782,Usually played
cricket,NOTNULL,678921,Usually played
$ nawk 'BEGIN{FS=","}!a... (2 Replies)
Discussion started by: scripter12
2 Replies
5. Shell Programming and Scripting
Hi Experts,
In a file tht i copied from the web , i am not able to remove the leading white spaces. I tried the below , none of them working . I opened the file through vi to check for the special characters if any , but no such characters found.
Your advice will be greatly appreciated.
sed... (5 Replies)
Discussion started by: panyam
5 Replies
6. Shell Programming and Scripting
#!/bin/bash
TESTVAR=" 5spaces"
echo $TESTVAR
hostame:~# ./test.sh
5spaces
The leading spaces from my variable are removed when the content is echo'd. I am trying to make some tabular data.
`echo -e` also fails.
Any suggestions? (2 Replies)
Discussion started by: grumm3t
2 Replies
7. Shell Programming and Scripting
Hi friends
I need some help,
I have a file which looks as follows
TEMP 014637065 014637065 517502 517502 RTE
517502 517502 RTE
AWATER_TEST 12325 23563 588323 2323 5656 32385 23235635
ANOTHER_TEST 12 5433 FTHH 5653 833
TEST 123 123 3235 5353 353 53 35 353 535 3
YTERS GJK JKLS
... (6 Replies)
Discussion started by: lijojoseph
6 Replies
8. UNIX for Dummies Questions & Answers
I have a name field in a file which is right justified (yep - its true). I need to strip the leading spaces from the field and write the name out left justified. Again, I think I need to use a sed or awk command but so far, my results are at best disappointing. Thank you in advance from a UNIX... (2 Replies)
Discussion started by: Marcia P
2 Replies
9. Shell Programming and Scripting
I am trying to strip all leading and trailing spaces of a shell variable using either awk or sed or any other utility, however unscuccessful and need your help.
echo $SH_VAR | command_line Syntax.
The SH_VAR contains embedded spaces which needs to be preserved. I need only for the leading and... (6 Replies)
Discussion started by: jerardfjay
6 Replies
10. Shell Programming and Scripting
Hi,
how to i remove leading and trailing spaces from a line? the spaces can be behind or in front of any field or line
example of a line in the input data:
Amy Reds , 100 , /bin/sh
how to i get it to be: Amy Read,100,/bin/sh
i saw something on this on the Man pages for AWK... (7 Replies)
Discussion started by: sleepster
7 Replies
bup-margin(1) General Commands Manual bup-margin(1)
NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS
--predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO
bup-midx(1), bup-save(1)
BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown- bup-margin(1)