Shellscript `grep` execution not working as in the interactive shell
Clash Royale CLAN TAG#URR8PPP
Having to deal with an environment where ack and so on is not available nor installable, this command try to limit only relevant files to find string through the C++ project :
grep pattern --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
This does the job. Now to bring a bit more commodity to that, the goal is to put that into a shell script. Let's say it's named wrapped_grep. Here is the content of wrapped_grep:
#!/usr/bin/env bash
shopt -s extglob # enable advanced pattern matching
grep $1 --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
But trying to launch wrapped_grep pattern don't provide any output, even when the equivalent direct grep query does find matches as expected.
What is missing in this script to provide the same result as the direct grep invocation?
bash shell-script grep output
asked Dec 13 at 10:10
psychoslave
1033
add a comment |
Having to deal with an environment where ack and so on is not available nor installable, this command try to limit only relevant files to find string through the C++ project :
grep pattern --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
This does the job. Now to bring a bit more commodity to that, the goal is to put that into a shell script. Let's say it's named wrapped_grep. Here is the content of wrapped_grep:
#!/usr/bin/env bash
shopt -s extglob # enable advanced pattern matching
grep $1 --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
But trying to launch wrapped_grep pattern don't provide any output, even when the equivalent direct grep query does find matches as expected.
What is missing in this script to provide the same result as the direct grep invocation?
bash shell-script grep output
asked Dec 13 at 10:10
psychoslave
1033
Which shell are you using when entering the command directly?
– nohillside
Dec 13 at 10:20
2
Perhaps you need to set shell optionglobstaras well asextglob?
– steeldriver
Dec 13 at 10:35
That was the globstar that was missing indeed, thank you steeldriver, please turn your comment into an answer so I can validate it. :)
– psychoslave
Dec 13 at 13:20
@psychoslave done - please see below
– steeldriver
Dec 13 at 13:37
add a comment |
Having to deal with an environment where ack and so on is not available nor installable, this command try to limit only relevant files to find string through the C++ project :
grep pattern --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
This does the job. Now to bring a bit more commodity to that, the goal is to put that into a shell script. Let's say it's named wrapped_grep. Here is the content of wrapped_grep:
#!/usr/bin/env bash
shopt -s extglob # enable advanced pattern matching
grep $1 --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
But trying to launch wrapped_grep pattern don't provide any output, even when the equivalent direct grep query does find matches as expected.
What is missing in this script to provide the same result as the direct grep invocation?
bash shell-script grep output
asked Dec 13 at 10:10
psychoslave
1033
Having to deal with an environment where ack and so on is not available nor installable, this command try to limit only relevant files to find string through the C++ project :
grep pattern --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
This does the job. Now to bring a bit more commodity to that, the goal is to put that into a shell script. Let's say it's named wrapped_grep. Here is the content of wrapped_grep:
#!/usr/bin/env bash
shopt -s extglob # enable advanced pattern matching
grep $1 --color -- /project/path/**/*.*([chCH]|cc|cxx|[ch]pp|py)
But trying to launch wrapped_grep pattern don't provide any output, even when the equivalent direct grep query does find matches as expected.
What is missing in this script to provide the same result as the direct grep invocation?
bash shell-script grep output
bash shell-script grep output
asked Dec 13 at 10:10
psychoslave
1033
asked Dec 13 at 10:10
psychoslave
1033
asked Dec 13 at 10:10
psychoslave
1033
asked Dec 13 at 10:10
psychoslave
1033
asked Dec 13 at 10:10
psychoslave
1033
1033
Which shell are you using when entering the command directly?
– nohillside
Dec 13 at 10:20
2
Perhaps you need to set shell optionglobstaras well asextglob?
– steeldriver
Dec 13 at 10:35
That was the globstar that was missing indeed, thank you steeldriver, please turn your comment into an answer so I can validate it. :)
– psychoslave
Dec 13 at 13:20
@psychoslave done - please see below
– steeldriver
Dec 13 at 13:37
add a comment |
Which shell are you using when entering the command directly?
– nohillside
Dec 13 at 10:20
2
Perhaps you need to set shell optionglobstaras well asextglob?
– steeldriver
Dec 13 at 10:35
That was the globstar that was missing indeed, thank you steeldriver, please turn your comment into an answer so I can validate it. :)
– psychoslave
Dec 13 at 13:20
@psychoslave done - please see below
– steeldriver
Dec 13 at 13:37
Which shell are you using when entering the command directly?
– nohillside
Dec 13 at 10:20
Which shell are you using when entering the command directly?
– nohillside
Dec 13 at 10:20
2
2
Perhaps you need to set shell option
globstar as well as extglob?– steeldriver
Dec 13 at 10:35
Perhaps you need to set shell option
globstar as well as extglob?– steeldriver
Dec 13 at 10:35
That was the globstar that was missing indeed, thank you steeldriver, please turn your comment into an answer so I can validate it. :)
– psychoslave
Dec 13 at 13:20
That was the globstar that was missing indeed, thank you steeldriver, please turn your comment into an answer so I can validate it. :)
– psychoslave
Dec 13 at 13:20
@psychoslave done - please see below
– steeldriver
Dec 13 at 13:37
@psychoslave done - please see below
– steeldriver
Dec 13 at 13:37
add a comment |
1 Answer
1
active
oldest
votes
The extglob shell option enables the *([chCH]|cc|cxx|[ch]pp|py) part of your expression, but the **/ part requires the globstar option
globstar
If set, the pattern ** used in a pathname expansion con‐
text will match all files and zero or more directories
and subdirectories. If the pattern is followed by a /,
only directories and subdirectories match.
So you likely need
shopt -s extglob globstar
answered Dec 13 at 13:36
steeldriver
34.2k35083
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The extglob shell option enables the *([chCH]|cc|cxx|[ch]pp|py) part of your expression, but the **/ part requires the globstar option
globstar
If set, the pattern ** used in a pathname expansion con‐
text will match all files and zero or more directories
and subdirectories. If the pattern is followed by a /,
only directories and subdirectories match.
So you likely need
shopt -s extglob globstar
answered Dec 13 at 13:36
steeldriver
34.2k35083
add a comment |
The extglob shell option enables the *([chCH]|cc|cxx|[ch]pp|py) part of your expression, but the **/ part requires the globstar option
globstar
If set, the pattern ** used in a pathname expansion con‐
text will match all files and zero or more directories
and subdirectories. If the pattern is followed by a /,
only directories and subdirectories match.
So you likely need
shopt -s extglob globstar
answered Dec 13 at 13:36
steeldriver
34.2k35083
add a comment |
The extglob shell option enables the *([chCH]|cc|cxx|[ch]pp|py) part of your expression, but the **/ part requires the globstar option
globstar
If set, the pattern ** used in a pathname expansion con‐
text will match all files and zero or more directories
and subdirectories. If the pattern is followed by a /,
only directories and subdirectories match.
So you likely need
shopt -s extglob globstar
answered Dec 13 at 13:36
steeldriver
34.2k35083
The extglob shell option enables the *([chCH]|cc|cxx|[ch]pp|py) part of your expression, but the **/ part requires the globstar option
globstar
If set, the pattern ** used in a pathname expansion con‐
text will match all files and zero or more directories
and subdirectories. If the pattern is followed by a /,
only directories and subdirectories match.
So you likely need
shopt -s extglob globstar
answered Dec 13 at 13:36
steeldriver
34.2k35083
answered Dec 13 at 13:36
steeldriver
34.2k35083
answered Dec 13 at 13:36
steeldriver
34.2k35083
answered Dec 13 at 13:36
steeldriver
34.2k35083
34.2k35083
add a comment |
add a comment |
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Which shell are you using when entering the command directly?
– nohillside
Dec 13 at 10:20
2
Perhaps you need to set shell option
globstaras well asextglob?– steeldriver
Dec 13 at 10:35
That was the globstar that was missing indeed, thank you steeldriver, please turn your comment into an answer so I can validate it. :)
– psychoslave
Dec 13 at 13:20
@psychoslave done - please see below
– steeldriver
Dec 13 at 13:37