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1. Shell Programming and Scripting
How can I extract digits at the end of a string in UNIX shell scripting or perl?
cat file.txt
abc_d123_4567.txt
A246_B789.txt
B123cc099.txt
a123_B234-012.txt
a13.txt
What can I do here? Many thanks.
cat file.txt | sed "s/.txt$//" | ........
4567
789
099
012
13 (11 Replies)
Discussion started by: mingch
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2. Shell Programming and Scripting
Hello,
I have a log file with logs such as
01/05/2017 10:23:41 : file.log.38: database error, MODE=SINGLE, LEVEL=critical, STATE: 01170255 (mode main
how can i use perl to extract the 8-digit number below from the string
01170255
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3. Shell Programming and Scripting
Thank you (2 Replies)
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4. Shell Programming and Scripting
I have a string
string="Please have a nice day and sleep well Replace_12123_31233_32134_12342 Good day"
How do i replace "Replace_12123_31233_32134_1234" in the above string.??
Please help.
Regards,
Qwerty (3 Replies)
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5. Shell Programming and Scripting
I would like to extract a digit from $0 starting 2,30 to 3,99 or 2.30 to 3.99
Can somebody fix this?
awk --re-interval '{if($0 ~ /{1}{2}/) {print FILENAME, substr($0,index($0,/{1}{2}/) , 4)}}'input
abcdefg sdlfkj 3,29 g. lasdfj
alsdfjasl 2.86 gr. slkjds sldkd
lskdjfsl sdfkj kdjlksj 3,34 g... (4 Replies)
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6. Shell Programming and Scripting
I would like to search between two a string. I thought this would be easy. The is always at the beginning of a line.
The code:
gawk '/^/{d=$1},/searchstring/,/^(d+1)/'
or
gawk '/^/,/searchstring/,/^/'
did not return the desired result.
inputfile.txt
999 some text searchstring some... (6 Replies)
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7. Shell Programming and Scripting
print out 201 in following string, Please note the chars before 201 are random, no fixed format.
ua07app201 (20 Replies)
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8. Shell Programming and Scripting
Hi guys,
I have a text file report generated from egrepping multiple files.
The text files themselves are obtianed after many succesive refinements, so they contain already the desired number, but this is surrounded by unwanted characters, newlines, spaces, it is not always at the start of the... (6 Replies)
Discussion started by: netfreighter
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9. Shell Programming and Scripting
I have a string like xxxxxx44. What's the best way to extract the digits (one or more) in a ksh script?
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10. UNIX for Dummies Questions & Answers
Hi guys,
I am not very experienced in writing ksh scripts and I am trying to write a piece of code that indicates if a given string contains only digits and no alphabet (upper or lower case). If i write it my way it would turn out to have a lot of comparisons.. :eek:
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