unix

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How to check if the variable value in AWK script is null or empty?
user_8423840
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55
4
107869
awk unix
ctrl-d didn't stop the while(getchar()!=EOF) loop
user_9969250
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9
2
20684
eof unix c
How to replace a string in multiple files using grep and sed when the -i argument is not supported?
user_7127920
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13
3
11838
sed grep macos unix
splitting a line according to the field separator as a string
user_1347130
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5
1
4579
solaris awk unix
Shell script: find maximum value in a sequence of integers without sorting
user_1893360
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11
4
26528
shell unix
How to use cat with socket?
user_13634880
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5
2
9992
cat sockets unix
Python: code.interact(local=locals()) where stdin/stdout are not available
user_2322200
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8
1
4960
scheduler unix-socket unix django python
Receiving data from already closed socket?
user_4358000
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7
3
3758
client-server sockets unix c c++
Rsync create symbolic links only
user_9832230
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9
4
3802
rsync shell unix
What is the difference between SIGSTOP and SIGTSTP?
user_14197150
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137
4
75324
signal-handling signals unix
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