Questions tagged [pattern-matching]

Question 1

$ sleep 1234& $ sleep 12345678& $ %sleep\ 1234 bash: fg: sleep 1234: ambiguous job spec $ jobs [1]- Running sleep 1234 & [2]+ Running sleep 12345678 & ...

Question 2

I'm trying to understand some subtle behavior of find and its -regex option I am trying to create symbolic links from files entitled slides_.*.pdf in folders that start with L1[0-6]. I tried the ...

Question 3

Please look at this pattern replacement in parameter expansion: % zsh -c 'echo ${0/%.jpg/.jpeg}' toto.jpg toto.jpeg Replacement does not occur here: % zsh -c 'echo ${0/%.jpg/.jpeg}' toto.JPG toto.JPG ...

Question 4

I'm new to sed, I have a string lightdm --session-child 14 21 the two numbers can change and I would remove everything after lightdm I tried various way but none worked sed 's/ --session-child*//' ...

Question 5

The following code should demonstrate and help with testing inefficient Pattern Matching expressions in a Parameter Substitution for a newline-separated strings var vs. array. The goal is to achieve ...

Question 6

I'm trying to replace "}," by "}" from the last line of a file : My /etc/firefox/policies/policies.json file like this because I added the certificate lines using a for loop : $ ...

Question 7

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 ...

Question 8

case "$1","$name" in -py | --python | --python3,*) if [[ "$name" =~ \..+$ ]]; then That doesn't catch stuff, which actually it should, like… USERNAME@HOSTNAME:~$ ...

Question 9

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 ...

Question 10

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 ...

Question 11

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/,/...

Question 12

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 ...

Question 13

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 ...

Question 14

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 ...

Question 15

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 ...

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Questions tagged [pattern-matching]

Are some bash ambiguous job specs impossible to differentiate?

find and regex matching behavior? Why won't 'L1[0-6].*' match "L15a" [closed]

Case-insensitive pattern replacement in Zsh parameter expansion

Sed delete everything after a word

Make parameter substitution in newline-separated string more efficient

How to replace pattern in last line

To understand zmv ## patterns

How is the correct syntax for a more complex case statement?

multiline grep search into separate files per occurence

Retrieve the Following Occurrence of the String 'PWD' Once the Given String is Located

awk print between lines when "/" is part of the name

Wrap specific string with characters

Pattern list in bash extglob containing a / and a |

replace both filename and filename's content relying solely on pattern found on the name-of-the-file

Searching for a pattern in a binary file using python script

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