Questions tagged [pattern-matching]
The pattern-matching tag has no usage guidance.
170
questions
3
votes
1
answer
139
views
To understand zmv ## patterns
This is zmv command to non-recursively replace any number of spaces with a single underscore (thanks to Stéphane Chazelas, who helped me with it):
zmv -- '* *' '${f// ##/_}'
And here is a command ...
- 73
2
votes
1
answer
268
views
How is the correct syntax for a more complex case statement?
case "$1","$name" in
-py | --python | --python3,*) if [[ "$name" =~ \..+$ ]]; then
That doesn't catch stuff, which actually it should,
like…
USERNAME@HOSTNAME:~$ ...
- 193
-1
votes
5
answers
71
views
multiline grep search into separate files per occurence
I have a file as following:
example.txt
-1
15
1 0 0 11 -1.0000E+001 1.0000E+001 -1.0000E+001
2 0 0 11 1.0000E+001 1.0000E+001 ...
- 101
0
votes
1
answer
51
views
Retrieve the Following Occurrence of the String 'PWD' Once the Given String is Located
Below is my sample test.log file
export SQRDIR=/v/orahome/Middleware/Oracle/bin64
export OID=ap0092
export PWD=pass1
export FDPWD=pass1
export AP0085_PWD=pass1
export SVR=AFFPROD
export ...
- 511
1
vote
3
answers
346
views
awk print between lines when "/" is part of the name
I need to print lines between those that contain a "/" in the name.
I tried with:
awk '/+SOLUTION/ESTIMATES/,/-SOLUTION/ESTIMATES/' $F > fil$F
and
awk '/+SOLUTION"/"ESTIMATES/,/...
- 23
0
votes
0
answers
30
views
match files with regexp and move them
My problem is like this:
The original folder "datasets to optimize" contains 1000s files whose names contain the following pattern:
variable 2-3 dots or 1 dot with numbers, as in 1.87.184 ...
0
votes
4
answers
74
views
Wrap specific string with characters
For example, in a large file I might have:
This is a /16 text file
I'd like to change it to the following:
This is a [[[/16]]]] text file
Would like to match the exact string /16
Is there a way to ...
- 707
2
votes
0
answers
57
views
Pattern list in bash extglob containing a / and a |
Here is a transcript of commands (and their output) that explains my problem:
/tmp/example $ shopt -s
cdspell on
checkwinsize on
cmdhist on
complete_fullquote on
direxpand ...
1
vote
2
answers
48
views
replace both filename and filename's content relying solely on pattern found on the name-of-the-file
I'd like to know if it's possible to replace both filename.ext and a matched pattern inside its content regarding a pattern founded on the filename itself using sed (and grep also, maybe?).
Let me ...
- 33
1
vote
1
answer
2k
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Searching for a pattern in a binary file using python script
I want to find repeated copies of the config section within the partition dump (binary file), using pattern and 'magic' header. The config section always starts with 202 '0xff' bytes followed by 4 ...
- 535
0
votes
1
answer
82
views
Bash: Difference between "Pattern Matching" and "Filename Expansion" in the context of parameter expansions that do matching
Edit: Question ansewered by Gordon Davisson's comment
I was reading the GNU Bash manual, and I noticed that there are basically three types of "Parameter expansion" that do pattern matching:
...
- 254
3
votes
3
answers
730
views
Find files matching one pattern, but not another, using grep, awk or sed [duplicate]
I need to locate .php and .pl files that do not contain one string (e.g. aaa), but do contain another (e.g. bbb).
I'm currently using this command:
find /path/ \( -iname '*.php*' -or -name '*.pl*' \) -...
- 2,742
4
votes
4
answers
691
views
grep multiple patterns with differing number of matching groups?
I'm trying to tally insertions and deletions from git diffs.
I have the following, which when piped one or more strings of the form "4 files changed, 629607 insertions(+), 123 deletions(-)" ...
- 143
1
vote
0
answers
69
views
does "find -name " matches the whole path or just the basename?
I was getting inconsistent results with pattern matching using -name, -iname, especially when looking for files -type f or directories type -d. Can someone explain under which circumstances -name ...
- 63
0
votes
3
answers
722
views
Glob pattern matching comma separated numbers
I want to write a glob pattern to match numbers separated by commas. What would the pattern be like?
Here are some examples
5
5,8,13
Have started with the following, but there some problem with it, ...
- 1