run parallel command and redirect the output to files with specific name
i can't undestand well how the parallel command works.
i need to run this simple command: (100 times)
curl https://jsonplaceholder.typicode.com/todos/1
curl https://jsonplaceholder.typicode.com/todos/2
curl https://jsonplaceholder.typicode.com/todos/3
...
curl https://jsonplaceholder.typicode.com/todos/100
end redirect the output to files with the names like these:
1.txt
2.txt
3.txt
....
100.txt
io-redirection gnu-parallel
asked 8 hours ago
alex
1112
add a comment |
i can't undestand well how the parallel command works.
i need to run this simple command: (100 times)
curl https://jsonplaceholder.typicode.com/todos/1
curl https://jsonplaceholder.typicode.com/todos/2
curl https://jsonplaceholder.typicode.com/todos/3
...
curl https://jsonplaceholder.typicode.com/todos/100
end redirect the output to files with the names like these:
1.txt
2.txt
3.txt
....
100.txt
io-redirection gnu-parallel
asked 8 hours ago
alex
1112
Unless you are really trying to figure out how to do this with theparallelcommand, this may solve your problem:for i in {1..100}; do curl "https://jsonplaceholder.typicode.com/todos/$i" > "$i.txt"; done.
– ozzy
8 hours ago
Press "I" with a shift parallel, it is important. :-)
– peterh
7 hours ago
add a comment |
i can't undestand well how the parallel command works.
i need to run this simple command: (100 times)
curl https://jsonplaceholder.typicode.com/todos/1
curl https://jsonplaceholder.typicode.com/todos/2
curl https://jsonplaceholder.typicode.com/todos/3
...
curl https://jsonplaceholder.typicode.com/todos/100
end redirect the output to files with the names like these:
1.txt
2.txt
3.txt
....
100.txt
io-redirection gnu-parallel
asked 8 hours ago
alex
1112
i can't undestand well how the parallel command works.
i need to run this simple command: (100 times)
curl https://jsonplaceholder.typicode.com/todos/1
curl https://jsonplaceholder.typicode.com/todos/2
curl https://jsonplaceholder.typicode.com/todos/3
...
curl https://jsonplaceholder.typicode.com/todos/100
end redirect the output to files with the names like these:
1.txt
2.txt
3.txt
....
100.txt
io-redirection gnu-parallel
io-redirection gnu-parallel
asked 8 hours ago
alex
1112
asked 8 hours ago
alex
1112
edited 8 hours ago
asked 8 hours ago
alex
1112
asked 8 hours ago
alex
1112
asked 8 hours ago
alex
1112
1112
Unless you are really trying to figure out how to do this with theparallelcommand, this may solve your problem:for i in {1..100}; do curl "https://jsonplaceholder.typicode.com/todos/$i" > "$i.txt"; done.
– ozzy
8 hours ago
Press "I" with a shift parallel, it is important. :-)
– peterh
7 hours ago
add a comment |
Unless you are really trying to figure out how to do this with theparallelcommand, this may solve your problem:for i in {1..100}; do curl "https://jsonplaceholder.typicode.com/todos/$i" > "$i.txt"; done.
– ozzy
8 hours ago
Press "I" with a shift parallel, it is important. :-)
– peterh
7 hours ago
Unless you are really trying to figure out how to do this with the
parallel command, this may solve your problem: for i in {1..100}; do curl "https://jsonplaceholder.typicode.com/todos/$i" > "$i.txt"; done.– ozzy
8 hours ago
Unless you are really trying to figure out how to do this with the
parallel command, this may solve your problem: for i in {1..100}; do curl "https://jsonplaceholder.typicode.com/todos/$i" > "$i.txt"; done.– ozzy
8 hours ago
Press "I" with a shift parallel, it is important. :-)
– peterh
7 hours ago
Press "I" with a shift parallel, it is important. :-)
– peterh
7 hours ago
add a comment |
1 Answer
1
active
oldest
votes
Well, this is a somewhat over-engineered Bash-solution, but it works and hopefully clarifies the use of the parallel command:
function xx(){ curl "https://jsonplaceholder.typicode.com/todos/$1" > "$1.txt";}
parallel xx -- {1..100}
The first line creates a new "command" or function called xx which - when executed - causes the execution of a curl command that has its stdout redirected to a file. The xx function takes a single number as its argument; inside the body of the function, it is referred to as `$1', i.e. the first positional parameter.
The second line demonstrates the use of the parallel command, which runs xx once for (and with) each argument from the list 1, 2, 3, ..., 100 (the list 1 2 3 ... 100 is generated by the shell when it performs brace expansion on {1..100}).
answered 8 hours ago
ozzy
1143
add a comment |
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1 Answer
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votes
Well, this is a somewhat over-engineered Bash-solution, but it works and hopefully clarifies the use of the parallel command:
function xx(){ curl "https://jsonplaceholder.typicode.com/todos/$1" > "$1.txt";}
parallel xx -- {1..100}
The first line creates a new "command" or function called xx which - when executed - causes the execution of a curl command that has its stdout redirected to a file. The xx function takes a single number as its argument; inside the body of the function, it is referred to as `$1', i.e. the first positional parameter.
The second line demonstrates the use of the parallel command, which runs xx once for (and with) each argument from the list 1, 2, 3, ..., 100 (the list 1 2 3 ... 100 is generated by the shell when it performs brace expansion on {1..100}).
answered 8 hours ago
ozzy
1143
add a comment |
Well, this is a somewhat over-engineered Bash-solution, but it works and hopefully clarifies the use of the parallel command:
function xx(){ curl "https://jsonplaceholder.typicode.com/todos/$1" > "$1.txt";}
parallel xx -- {1..100}
The first line creates a new "command" or function called xx which - when executed - causes the execution of a curl command that has its stdout redirected to a file. The xx function takes a single number as its argument; inside the body of the function, it is referred to as `$1', i.e. the first positional parameter.
The second line demonstrates the use of the parallel command, which runs xx once for (and with) each argument from the list 1, 2, 3, ..., 100 (the list 1 2 3 ... 100 is generated by the shell when it performs brace expansion on {1..100}).
answered 8 hours ago
ozzy
1143
add a comment |
Well, this is a somewhat over-engineered Bash-solution, but it works and hopefully clarifies the use of the parallel command:
function xx(){ curl "https://jsonplaceholder.typicode.com/todos/$1" > "$1.txt";}
parallel xx -- {1..100}
The first line creates a new "command" or function called xx which - when executed - causes the execution of a curl command that has its stdout redirected to a file. The xx function takes a single number as its argument; inside the body of the function, it is referred to as `$1', i.e. the first positional parameter.
The second line demonstrates the use of the parallel command, which runs xx once for (and with) each argument from the list 1, 2, 3, ..., 100 (the list 1 2 3 ... 100 is generated by the shell when it performs brace expansion on {1..100}).
answered 8 hours ago
ozzy
1143
Well, this is a somewhat over-engineered Bash-solution, but it works and hopefully clarifies the use of the parallel command:
function xx(){ curl "https://jsonplaceholder.typicode.com/todos/$1" > "$1.txt";}
parallel xx -- {1..100}
The first line creates a new "command" or function called xx which - when executed - causes the execution of a curl command that has its stdout redirected to a file. The xx function takes a single number as its argument; inside the body of the function, it is referred to as `$1', i.e. the first positional parameter.
The second line demonstrates the use of the parallel command, which runs xx once for (and with) each argument from the list 1, 2, 3, ..., 100 (the list 1 2 3 ... 100 is generated by the shell when it performs brace expansion on {1..100}).
answered 8 hours ago
ozzy
1143
edited 7 hours ago
answered 8 hours ago
ozzy
1143
answered 8 hours ago
ozzy
1143
answered 8 hours ago
ozzy
1143
1143
add a comment |
add a comment |
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Unless you are really trying to figure out how to do this with the
parallelcommand, this may solve your problem:for i in {1..100}; do curl "https://jsonplaceholder.typicode.com/todos/$i" > "$i.txt"; done.– ozzy
8 hours ago
Press "I" with a shift parallel, it is important. :-)
– peterh
7 hours ago